Baitaphish
Security intelligence
SearchLatest briefing
CVE Explorer

CVE-2026-52993

In the Linux kernel, the following vulnerability has been resolved: tipc: fix double-free in tipc_buf_append() tipc_msg_validate() can potentially reallocate the skb it is validating, freeing the old one. In tipc_buf_append(), it was being called with a pointer to a local variable which was a copy of the caller's skb pointer. If the skb was reallocated and validation subsequently failed, the error handling path would free the original skb pointer, which had already been freed, leading to dou
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:357d02ad8dcda1a0e6bec3b9ea489e7abb737da77b9cc6ae7c22cc3a7f826919
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
2

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 10 assertions

{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:7"],"defaultStatus":"unaffected","packageName":"kernel","product":"Red Hat Enterprise Linux 7","vendor":"Red Hat"}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:0460dc5f32ac7a6fa95ebb67d9d23c7e04bb92271d14e07bc5b70092af8dc1d3 · sha256:51076de1aed25b44… · /containers/adp/0/affected/5

{"defaultStatus":"unaffected","product":"Linux","programFiles":["net/tipc/msg.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"a438975a6dcdbd70865978c021650d1485586f0b","status":"affected","version":"d618d09a68e4eed7a435beb2e355250f6f40664a","versionType":"git"},{"lessThan":"4ee4deadaae7cb2e3d53af0fc889cf92a73413c0","status":"affected","version":"d618d09a68e4eed7a435beb2e355250f6f40664a","versionType":"git"},{"lessThan":"d3556656c6daebf8def751c7e71d11dd0a180d24","status":"affected","version":"d618d09a68e4eed7a435beb2e355250…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:0460dc5f32ac7a6fa95ebb67d9d23c7e04bb92271d14e07bc5b70092af8dc1d3 · sha256:51076de1aed25b44… · /containers/cna/affected/0

{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:7"],"defaultStatus":"unaffected","packageName":"kernel-rt","product":"Red Hat Enterprise Linux 7","vendor":"Red Hat"}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:0460dc5f32ac7a6fa95ebb67d9d23c7e04bb92271d14e07bc5b70092af8dc1d3 · sha256:51076de1aed25b44… · /containers/adp/0/affected/6

{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:enterprise_linux:9","cpe:/o:redhat:enterprise_linux:9"],"defaultStatus":"affected","packageName":"kernel","product":"Red Hat Enterprise Linux 9","vendor":"Red Hat","versions":[{"lessThan":"*","status":"unaffected","version":"0:5.14.0-687.33.1.el9_8","versionType":"rpm"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:0460dc5f32ac7a6fa95ebb67d9d23c7e04bb92271d14e07bc5b70092af8dc1d3 · sha256:51076de1aed25b44… · /containers/adp/0/affected/3

{"defaultStatus":"affected","product":"Linux","programFiles":["net/tipc/msg.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"4.15"},{"lessThan":"4.15","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.258","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.209","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.175","versionType":"semver"},{"lessThanOrEqua…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:0460dc5f32ac7a6fa95ebb67d9d23c7e04bb92271d14e07bc5b70092af8dc1d3 · sha256:51076de1aed25b44… · /containers/cna/affected/1

{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:9"],"defaultStatus":"affected","packageName":"kernel-rt","product":"Red Hat Enterprise Linux 9","vendor":"Red Hat"}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:0460dc5f32ac7a6fa95ebb67d9d23c7e04bb92271d14e07bc5b70092af8dc1d3 · sha256:51076de1aed25b44… · /containers/adp/0/affected/7

{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:10.2"],"defaultStatus":"affected","packageName":"kernel","product":"Red Hat Enterprise Linux 10","vendor":"Red Hat","versions":[{"lessThan":"*","status":"unaffected","version":"0:6.12.0-211.40.1.el10_2","versionType":"rpm"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:0460dc5f32ac7a6fa95ebb67d9d23c7e04bb92271d14e07bc5b70092af8dc1d3 · sha256:51076de1aed25b44… · /containers/adp/0/affected/0

{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:6"],"defaultStatus":"unaffected","packageName":"kernel","product":"Red Hat Enterprise Linux 6","vendor":"Red Hat"}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:0460dc5f32ac7a6fa95ebb67d9d23c7e04bb92271d14e07bc5b70092af8dc1d3 · sha256:51076de1aed25b44… · /containers/adp/0/affected/4

{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:8"],"defaultStatus":"affected","packageName":"kernel","product":"Red Hat Enterprise Linux 8","vendor":"Red Hat","versions":[{"lessThan":"*","status":"unaffected","version":"0:4.18.0-553.147.1.el8_10","versionType":"rpm"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:0460dc5f32ac7a6fa95ebb67d9d23c7e04bb92271d14e07bc5b70092af8dc1d3 · sha256:51076de1aed25b44… · /containers/adp/0/affected/2

{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:enterprise_linux:8::nfv"],"defaultStatus":"affected","packageName":"kernel-rt","product":"Red Hat Enterprise Linux 8","vendor":"Red Hat","versions":[{"lessThan":"*","status":"unaffected","version":"0:4.18.0-553.147.1.rt7.488.el8_10","versionType":"rpm"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:0460dc5f32ac7a6fa95ebb67d9d23c7e04bb92271d14e07bc5b70092af8dc1d3 · sha256:51076de1aed25b44… · /containers/adp/0/affected/1
cvss · 2 assertions

{"metric":{"attackComplexity":"HIGH","attackVector":"LOCAL","availabilityImpact":"HIGH","baseScore":7,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"metric_type":"cvssV3_1"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:0460dc5f32ac7a6fa95ebb67d9d23c7e04bb92271d14e07bc5b70092af8dc1d3 · sha256:51076de1aed25b44… · /containers/adp/0/metrics/1/cvssV3_1

{"metric":{"baseScore":9.8,"baseSeverity":"CRITICAL","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"metric_type":"cvssV3_1"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:0460dc5f32ac7a6fa95ebb67d9d23c7e04bb92271d14e07bc5b70092af8dc1d3 · sha256:51076de1aed25b44… · /containers/cna/metrics/0/cvssV3_1

Affected products and versions

10 source assertions
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:7"],"defaultStatus":"unaffected","packageName":"kernel","product":"Red Hat Enterprise Linux 7","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:0460dc5f32ac7a6fa95ebb67d9d23c7e04bb92271d14e07bc5b70092af8dc1d3 · sha256:51076de1aed25b44… · /containers/adp/0/affected/5
{"defaultStatus":"unaffected","product":"Linux","programFiles":["net/tipc/msg.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"a438975a6dcdbd70865978c021650d1485586f0b","status":"affected","version":"d618d09a68e4eed7a435beb2e355250f6f40664a","versionType":"git"},{"lessThan":"4ee4deadaae7cb2e3d53af0fc889cf92a73413c0","status":"affected","version":"d618d09a68e4eed7a435beb2e355250f6f40664a","versionType":"git"},{"lessThan":"d3556656c6daebf8def751c7e71d11dd0a180d24","status":"affected","version":"d618d09a68e4eed7a435beb2e355250…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:0460dc5f32ac7a6fa95ebb67d9d23c7e04bb92271d14e07bc5b70092af8dc1d3 · sha256:51076de1aed25b44… · /containers/cna/affected/0
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:7"],"defaultStatus":"unaffected","packageName":"kernel-rt","product":"Red Hat Enterprise Linux 7","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:0460dc5f32ac7a6fa95ebb67d9d23c7e04bb92271d14e07bc5b70092af8dc1d3 · sha256:51076de1aed25b44… · /containers/adp/0/affected/6
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:enterprise_linux:9","cpe:/o:redhat:enterprise_linux:9"],"defaultStatus":"affected","packageName":"kernel","product":"Red Hat Enterprise Linux 9","vendor":"Red Hat","versions":[{"lessThan":"*","status":"unaffected","version":"0:5.14.0-687.33.1.el9_8","versionType":"rpm"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:0460dc5f32ac7a6fa95ebb67d9d23c7e04bb92271d14e07bc5b70092af8dc1d3 · sha256:51076de1aed25b44… · /containers/adp/0/affected/3
{"defaultStatus":"affected","product":"Linux","programFiles":["net/tipc/msg.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"4.15"},{"lessThan":"4.15","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.258","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.209","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.175","versionType":"semver"},{"lessThanOrEqua…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:0460dc5f32ac7a6fa95ebb67d9d23c7e04bb92271d14e07bc5b70092af8dc1d3 · sha256:51076de1aed25b44… · /containers/cna/affected/1
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:9"],"defaultStatus":"affected","packageName":"kernel-rt","product":"Red Hat Enterprise Linux 9","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:0460dc5f32ac7a6fa95ebb67d9d23c7e04bb92271d14e07bc5b70092af8dc1d3 · sha256:51076de1aed25b44… · /containers/adp/0/affected/7
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:10.2"],"defaultStatus":"affected","packageName":"kernel","product":"Red Hat Enterprise Linux 10","vendor":"Red Hat","versions":[{"lessThan":"*","status":"unaffected","version":"0:6.12.0-211.40.1.el10_2","versionType":"rpm"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:0460dc5f32ac7a6fa95ebb67d9d23c7e04bb92271d14e07bc5b70092af8dc1d3 · sha256:51076de1aed25b44… · /containers/adp/0/affected/0
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:6"],"defaultStatus":"unaffected","packageName":"kernel","product":"Red Hat Enterprise Linux 6","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:0460dc5f32ac7a6fa95ebb67d9d23c7e04bb92271d14e07bc5b70092af8dc1d3 · sha256:51076de1aed25b44… · /containers/adp/0/affected/4
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:8"],"defaultStatus":"affected","packageName":"kernel","product":"Red Hat Enterprise Linux 8","vendor":"Red Hat","versions":[{"lessThan":"*","status":"unaffected","version":"0:4.18.0-553.147.1.el8_10","versionType":"rpm"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:0460dc5f32ac7a6fa95ebb67d9d23c7e04bb92271d14e07bc5b70092af8dc1d3 · sha256:51076de1aed25b44… · /containers/adp/0/affected/2
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:enterprise_linux:8::nfv"],"defaultStatus":"affected","packageName":"kernel-rt","product":"Red Hat Enterprise Linux 8","vendor":"Red Hat","versions":[{"lessThan":"*","status":"unaffected","version":"0:4.18.0-553.147.1.rt7.488.el8_10","versionType":"rpm"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:0460dc5f32ac7a6fa95ebb67d9d23c7e04bb92271d14e07bc5b70092af8dc1d3 · sha256:51076de1aed25b44… · /containers/adp/0/affected/1

Provider-owned CVSS observations

2 source assertions
{"metric":{"attackComplexity":"HIGH","attackVector":"LOCAL","availabilityImpact":"HIGH","baseScore":7,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:0460dc5f32ac7a6fa95ebb67d9d23c7e04bb92271d14e07bc5b70092af8dc1d3 · sha256:51076de1aed25b44… · /containers/adp/0/metrics/1/cvssV3_1
{"metric":{"baseScore":9.8,"baseSeverity":"CRITICAL","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:0460dc5f32ac7a6fa95ebb67d9d23c7e04bb92271d14e07bc5b70092af8dc1d3 · sha256:51076de1aed25b44… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion
{"cweId":"CWE-763","description":"Release of Invalid Pointer or Reference","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:0460dc5f32ac7a6fa95ebb67d9d23c7e04bb92271d14e07bc5b70092af8dc1d3 · sha256:51076de1aed25b44… · /containers/adp/0/problemTypes/0/descriptions/0

Source references

15 source assertions
{"tags":["vendor-advisory","x_refsource_REDHAT"],"url":"https://access.redhat.com/errata/RHSA-2026:45115"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:0460dc5f32ac7a6fa95ebb67d9d23c7e04bb92271d14e07bc5b70092af8dc1d3 · sha256:51076de1aed25b44… · /containers/adp/0/references/5
{"tags":["vendor-advisory","x_refsource_REDHAT"],"url":"https://access.redhat.com/errata/RHSA-2026:45116"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:0460dc5f32ac7a6fa95ebb67d9d23c7e04bb92271d14e07bc5b70092af8dc1d3 · sha256:51076de1aed25b44… · /containers/adp/0/references/6
{"tags":["vendor-advisory","x_refsource_REDHAT"],"url":"https://access.redhat.com/errata/RHSA-2026:47017"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:0460dc5f32ac7a6fa95ebb67d9d23c7e04bb92271d14e07bc5b70092af8dc1d3 · sha256:51076de1aed25b44… · /containers/adp/0/references/3
{"tags":["vendor-advisory","x_refsource_REDHAT"],"url":"https://access.redhat.com/errata/RHSA-2026:49212"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:0460dc5f32ac7a6fa95ebb67d9d23c7e04bb92271d14e07bc5b70092af8dc1d3 · sha256:51076de1aed25b44… · /containers/adp/0/references/4
{"tags":["vdb-entry","x_refsource_REDHAT"],"url":"https://access.redhat.com/security/cve/CVE-2026-52993"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:0460dc5f32ac7a6fa95ebb67d9d23c7e04bb92271d14e07bc5b70092af8dc1d3 · sha256:51076de1aed25b44… · /containers/adp/0/references/0
{"name":"RHBZ#2492437","tags":["issue-tracking","x_refsource_REDHAT"],"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2492437"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:0460dc5f32ac7a6fa95ebb67d9d23c7e04bb92271d14e07bc5b70092af8dc1d3 · sha256:51076de1aed25b44… · /containers/adp/0/references/1
{"url":"https://git.kernel.org/stable/c/0274f24485fc38032d4093e463dc3ff5c7a667c9"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:0460dc5f32ac7a6fa95ebb67d9d23c7e04bb92271d14e07bc5b70092af8dc1d3 · sha256:51076de1aed25b44… · /containers/cna/references/3
{"url":"https://git.kernel.org/stable/c/1d5e589055880fae229e229e1929e087dbe08cf3"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:0460dc5f32ac7a6fa95ebb67d9d23c7e04bb92271d14e07bc5b70092af8dc1d3 · sha256:51076de1aed25b44… · /containers/cna/references/5
{"url":"https://git.kernel.org/stable/c/29940fff14110ca48c5ccc168d121665b51bb778"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:0460dc5f32ac7a6fa95ebb67d9d23c7e04bb92271d14e07bc5b70092af8dc1d3 · sha256:51076de1aed25b44… · /containers/cna/references/6
{"url":"https://git.kernel.org/stable/c/4d104882bc815d4ec666ace9155f5f52715879a6"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:0460dc5f32ac7a6fa95ebb67d9d23c7e04bb92271d14e07bc5b70092af8dc1d3 · sha256:51076de1aed25b44… · /containers/cna/references/4
{"url":"https://git.kernel.org/stable/c/4ee4deadaae7cb2e3d53af0fc889cf92a73413c0"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:0460dc5f32ac7a6fa95ebb67d9d23c7e04bb92271d14e07bc5b70092af8dc1d3 · sha256:51076de1aed25b44… · /containers/cna/references/1
{"url":"https://git.kernel.org/stable/c/a438975a6dcdbd70865978c021650d1485586f0b"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:0460dc5f32ac7a6fa95ebb67d9d23c7e04bb92271d14e07bc5b70092af8dc1d3 · sha256:51076de1aed25b44… · /containers/cna/references/0
{"url":"https://git.kernel.org/stable/c/d293ca716e7d5dffdaecaf6b9b2f857a33dc3d3a"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:0460dc5f32ac7a6fa95ebb67d9d23c7e04bb92271d14e07bc5b70092af8dc1d3 · sha256:51076de1aed25b44… · /containers/cna/references/7
{"url":"https://git.kernel.org/stable/c/d3556656c6daebf8def751c7e71d11dd0a180d24"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:0460dc5f32ac7a6fa95ebb67d9d23c7e04bb92271d14e07bc5b70092af8dc1d3 · sha256:51076de1aed25b44… · /containers/cna/references/2
{"tags":["x_sadp-csaf-vex"],"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-52993.json"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:0460dc5f32ac7a6fa95ebb67d9d23c7e04bb92271d14e07bc5b70092af8dc1d3 · sha256:51076de1aed25b44… · /containers/adp/0/references/2

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

← Back to CVE Explorer