Baitaphish
Security intelligence
SearchLatest briefing
CVE Explorer

CVE-2026-31617

In the Linux kernel, the following vulnerability has been resolved: usb: gadget: f_ncm: validate minimum block_len in ncm_unwrap_ntb() The block_len read from the host-supplied NTB header is checked against ntb_max but has no lower bound. When block_len is smaller than opts->ndp_size, the bounds check of: ndp_index > (block_len - opts->ndp_size) will underflow producing a huge unsigned value that ndp_index can never exceed, defeating the check entirely. The same underflow occurs in the datag
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:e65b60a9550165d651dd6cb5fd8e2bfcc9275338d0cdeb24302e1569843b6832
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

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:9"],"defaultStatus":"unaffected","packageName":"kernel","product":"Red Hat Enterprise Linux 9","vendor":"Red Hat"}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:01600ab9c76bcbf5b8f4fa4ac57e60725b0cb268fae3bd30c17585ac0a382221 · sha256:9c2c9eff451c29ac… · /containers/adp/0/affected/6

{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:8"],"defaultStatus":"unaffected","packageName":"kernel-rt","product":"Red Hat Enterprise Linux 8","vendor":"Red Hat"}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:01600ab9c76bcbf5b8f4fa4ac57e60725b0cb268fae3bd30c17585ac0a382221 · sha256:9c2c9eff451c29ac… · /containers/adp/0/affected/5

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

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:01600ab9c76bcbf5b8f4fa4ac57e60725b0cb268fae3bd30c17585ac0a382221 · sha256:9c2c9eff451c29ac… · /containers/adp/0/affected/7

{"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:v2:01600ab9c76bcbf5b8f4fa4ac57e60725b0cb268fae3bd30c17585ac0a382221 · sha256:9c2c9eff451c29ac… · /containers/adp/0/affected/3

{"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:v2:01600ab9c76bcbf5b8f4fa4ac57e60725b0cb268fae3bd30c17585ac0a382221 · sha256:9c2c9eff451c29ac… · /containers/adp/0/affected/1

{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/usb/gadget/function/f_ncm.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"5.9"},{"lessThan":"5.9","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…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:01600ab9c76bcbf5b8f4fa4ac57e60725b0cb268fae3bd30c17585ac0a382221 · sha256:9c2c9eff451c29ac… · /containers/cna/affected/1

{"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:v2:01600ab9c76bcbf5b8f4fa4ac57e60725b0cb268fae3bd30c17585ac0a382221 · sha256:9c2c9eff451c29ac… · /containers/adp/0/affected/2

{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/usb/gadget/function/f_ncm.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"068a7f2749fff6462a0a908ec415b885fe430f50","status":"affected","version":"2b74b0a04d3e9f9f08ff026e5663dce88ff94e52","versionType":"git"},{"lessThan":"1425655c2870054c3ab4712e2b6dbdd331597ada","status":"affected","version":"2b74b0a04d3e9f9f08ff026e5663dce88ff94e52","versionType":"git"},{"lessThan":"8b3b7bd3c02f98634baaf36c7fc7ac915f6517ca","status":"affected","version":"2b74b0a04d…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:01600ab9c76bcbf5b8f4fa4ac57e60725b0cb268fae3bd30c17585ac0a382221 · sha256:9c2c9eff451c29ac… · /containers/cna/affected/0

{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:10"],"defaultStatus":"affected","packageName":"kernel","product":"Red Hat Enterprise Linux 10","vendor":"Red Hat"}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:01600ab9c76bcbf5b8f4fa4ac57e60725b0cb268fae3bd30c17585ac0a382221 · sha256:9c2c9eff451c29ac… · /containers/adp/0/affected/0

{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:8"],"defaultStatus":"unaffected","packageName":"kernel","product":"Red Hat Enterprise Linux 8","vendor":"Red Hat"}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:01600ab9c76bcbf5b8f4fa4ac57e60725b0cb268fae3bd30c17585ac0a382221 · sha256:9c2c9eff451c29ac… · /containers/adp/0/affected/4

Affected products and versions

10 source assertions
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:9"],"defaultStatus":"unaffected","packageName":"kernel","product":"Red Hat Enterprise Linux 9","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:01600ab9c76bcbf5b8f4fa4ac57e60725b0cb268fae3bd30c17585ac0a382221 · sha256:9c2c9eff451c29ac… · /containers/adp/0/affected/6
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:8"],"defaultStatus":"unaffected","packageName":"kernel-rt","product":"Red Hat Enterprise Linux 8","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:01600ab9c76bcbf5b8f4fa4ac57e60725b0cb268fae3bd30c17585ac0a382221 · sha256:9c2c9eff451c29ac… · /containers/adp/0/affected/5
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:9"],"defaultStatus":"unaffected","packageName":"kernel-rt","product":"Red Hat Enterprise Linux 9","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:01600ab9c76bcbf5b8f4fa4ac57e60725b0cb268fae3bd30c17585ac0a382221 · sha256:9c2c9eff451c29ac… · /containers/adp/0/affected/7
{"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:v2:01600ab9c76bcbf5b8f4fa4ac57e60725b0cb268fae3bd30c17585ac0a382221 · sha256:9c2c9eff451c29ac… · /containers/adp/0/affected/3
{"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:v2:01600ab9c76bcbf5b8f4fa4ac57e60725b0cb268fae3bd30c17585ac0a382221 · sha256:9c2c9eff451c29ac… · /containers/adp/0/affected/1
{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/usb/gadget/function/f_ncm.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"5.9"},{"lessThan":"5.9","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…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:01600ab9c76bcbf5b8f4fa4ac57e60725b0cb268fae3bd30c17585ac0a382221 · sha256:9c2c9eff451c29ac… · /containers/cna/affected/1
{"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:v2:01600ab9c76bcbf5b8f4fa4ac57e60725b0cb268fae3bd30c17585ac0a382221 · sha256:9c2c9eff451c29ac… · /containers/adp/0/affected/2
{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/usb/gadget/function/f_ncm.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"068a7f2749fff6462a0a908ec415b885fe430f50","status":"affected","version":"2b74b0a04d3e9f9f08ff026e5663dce88ff94e52","versionType":"git"},{"lessThan":"1425655c2870054c3ab4712e2b6dbdd331597ada","status":"affected","version":"2b74b0a04d3e9f9f08ff026e5663dce88ff94e52","versionType":"git"},{"lessThan":"8b3b7bd3c02f98634baaf36c7fc7ac915f6517ca","status":"affected","version":"2b74b0a04d…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:01600ab9c76bcbf5b8f4fa4ac57e60725b0cb268fae3bd30c17585ac0a382221 · sha256:9c2c9eff451c29ac… · /containers/cna/affected/0
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:10"],"defaultStatus":"affected","packageName":"kernel","product":"Red Hat Enterprise Linux 10","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:01600ab9c76bcbf5b8f4fa4ac57e60725b0cb268fae3bd30c17585ac0a382221 · sha256:9c2c9eff451c29ac… · /containers/adp/0/affected/0
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:8"],"defaultStatus":"unaffected","packageName":"kernel","product":"Red Hat Enterprise Linux 8","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:01600ab9c76bcbf5b8f4fa4ac57e60725b0cb268fae3bd30c17585ac0a382221 · sha256:9c2c9eff451c29ac… · /containers/adp/0/affected/4

Provider-owned CVSS observations

1 source assertion
{"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:v2:01600ab9c76bcbf5b8f4fa4ac57e60725b0cb268fae3bd30c17585ac0a382221 · sha256:9c2c9eff451c29ac… · /containers/adp/0/metrics/1/cvssV3_1

CWE assertions

1 source assertion
{"cweId":"CWE-191","description":"Integer Underflow (Wrap or Wraparound)","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:01600ab9c76bcbf5b8f4fa4ac57e60725b0cb268fae3bd30c17585ac0a382221 · sha256:9c2c9eff451c29ac… · /containers/adp/0/problemTypes/0/descriptions/0

Source references

12 source assertions
{"tags":["vdb-entry","x_refsource_REDHAT"],"url":"https://access.redhat.com/security/cve/CVE-2026-31617"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:01600ab9c76bcbf5b8f4fa4ac57e60725b0cb268fae3bd30c17585ac0a382221 · sha256:9c2c9eff451c29ac… · /containers/adp/0/references/0
{"name":"RHBZ#2461448","tags":["issue-tracking","x_refsource_REDHAT"],"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2461448"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:01600ab9c76bcbf5b8f4fa4ac57e60725b0cb268fae3bd30c17585ac0a382221 · sha256:9c2c9eff451c29ac… · /containers/adp/0/references/1
{"url":"https://git.kernel.org/stable/c/068a7f2749fff6462a0a908ec415b885fe430f50"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:01600ab9c76bcbf5b8f4fa4ac57e60725b0cb268fae3bd30c17585ac0a382221 · sha256:9c2c9eff451c29ac… · /containers/cna/references/0
{"url":"https://git.kernel.org/stable/c/0f156bb5334e588034ca68ac2ee92b23f66e56e7"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:01600ab9c76bcbf5b8f4fa4ac57e60725b0cb268fae3bd30c17585ac0a382221 · sha256:9c2c9eff451c29ac… · /containers/cna/references/3
{"url":"https://git.kernel.org/stable/c/1425655c2870054c3ab4712e2b6dbdd331597ada"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:01600ab9c76bcbf5b8f4fa4ac57e60725b0cb268fae3bd30c17585ac0a382221 · sha256:9c2c9eff451c29ac… · /containers/cna/references/1
{"url":"https://git.kernel.org/stable/c/6762f8a95772265dd0c2ffe7f400493f3115b135"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:01600ab9c76bcbf5b8f4fa4ac57e60725b0cb268fae3bd30c17585ac0a382221 · sha256:9c2c9eff451c29ac… · /containers/cna/references/5
{"url":"https://git.kernel.org/stable/c/74908b0318d1df1188457040b8714ff4d4b68126"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:01600ab9c76bcbf5b8f4fa4ac57e60725b0cb268fae3bd30c17585ac0a382221 · sha256:9c2c9eff451c29ac… · /containers/cna/references/7
{"url":"https://git.kernel.org/stable/c/8757a2593631443648218244b9788e193ae0fdc1"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:01600ab9c76bcbf5b8f4fa4ac57e60725b0cb268fae3bd30c17585ac0a382221 · sha256:9c2c9eff451c29ac… · /containers/cna/references/4
{"url":"https://git.kernel.org/stable/c/8b3b7bd3c02f98634baaf36c7fc7ac915f6517ca"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:01600ab9c76bcbf5b8f4fa4ac57e60725b0cb268fae3bd30c17585ac0a382221 · sha256:9c2c9eff451c29ac… · /containers/cna/references/2
{"url":"https://git.kernel.org/stable/c/8f993d30b95dc9557a8a96ceca11abed674c8acb"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:01600ab9c76bcbf5b8f4fa4ac57e60725b0cb268fae3bd30c17585ac0a382221 · sha256:9c2c9eff451c29ac… · /containers/cna/references/8
{"url":"https://git.kernel.org/stable/c/d58ba8f6546232f8414f396c189297dbee03f1a7"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:01600ab9c76bcbf5b8f4fa4ac57e60725b0cb268fae3bd30c17585ac0a382221 · sha256:9c2c9eff451c29ac… · /containers/cna/references/6
{"tags":["x_sadp-csaf-vex"],"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-31617.json"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:01600ab9c76bcbf5b8f4fa4ac57e60725b0cb268fae3bd30c17585ac0a382221 · sha256:9c2c9eff451c29ac… · /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