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CVE-2026-58216

An out-of-bounds read flaw was found in Samba's Kerberos Key Distribution Center's (KDC) password change (kpasswd) service. When processing malformed ASN.1-encoded Kerberos password change request, Samba server miscalculates the structure size and attempts to read up to six bytes beyond the end of the allocated buffer. While this out-of-bounds read typically results in a harmless decryption failure, if the read hits unmapped memory, it causes the KDC process to crash. An authenticated attacker c
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:986d5c737df12c02a8307d852641b63fabdc292dd5848a2957b798e82fffd667
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 7 assertions

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

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:7aafda606c38a6cdf4fee5eba9699a1aa0daf48af88ab23123e6ab9af8696d3f · sha256:2035d336fa42b477… · /containers/cna/affected/0

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

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:7aafda606c38a6cdf4fee5eba9699a1aa0daf48af88ab23123e6ab9af8696d3f · sha256:2035d336fa42b477… · /containers/cna/affected/4

{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:6"],"defaultStatus":"unknown","packageName":"samba4","product":"Red Hat Enterprise Linux 6","vendor":"Red Hat"}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:7aafda606c38a6cdf4fee5eba9699a1aa0daf48af88ab23123e6ab9af8696d3f · sha256:2035d336fa42b477… · /containers/cna/affected/2

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

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:7aafda606c38a6cdf4fee5eba9699a1aa0daf48af88ab23123e6ab9af8696d3f · sha256:2035d336fa42b477… · /containers/cna/affected/1

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

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:7aafda606c38a6cdf4fee5eba9699a1aa0daf48af88ab23123e6ab9af8696d3f · sha256:2035d336fa42b477… · /containers/cna/affected/3

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

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:7aafda606c38a6cdf4fee5eba9699a1aa0daf48af88ab23123e6ab9af8696d3f · sha256:2035d336fa42b477… · /containers/cna/affected/5

{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:openshift:4"],"defaultStatus":"unknown","packageName":"rhcos","product":"Red Hat OpenShift Container Platform 4","vendor":"Red Hat"}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:7aafda606c38a6cdf4fee5eba9699a1aa0daf48af88ab23123e6ab9af8696d3f · sha256:2035d336fa42b477… · /containers/cna/affected/6

Affected products and versions

7 source assertions
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:10"],"defaultStatus":"unknown","packageName":"samba","product":"Red Hat Enterprise Linux 10","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:7aafda606c38a6cdf4fee5eba9699a1aa0daf48af88ab23123e6ab9af8696d3f · sha256:2035d336fa42b477… · /containers/cna/affected/0
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:8"],"defaultStatus":"unknown","packageName":"samba","product":"Red Hat Enterprise Linux 8","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:7aafda606c38a6cdf4fee5eba9699a1aa0daf48af88ab23123e6ab9af8696d3f · sha256:2035d336fa42b477… · /containers/cna/affected/4
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:6"],"defaultStatus":"unknown","packageName":"samba4","product":"Red Hat Enterprise Linux 6","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:7aafda606c38a6cdf4fee5eba9699a1aa0daf48af88ab23123e6ab9af8696d3f · sha256:2035d336fa42b477… · /containers/cna/affected/2
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:6"],"defaultStatus":"unknown","packageName":"samba","product":"Red Hat Enterprise Linux 6","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:7aafda606c38a6cdf4fee5eba9699a1aa0daf48af88ab23123e6ab9af8696d3f · sha256:2035d336fa42b477… · /containers/cna/affected/1
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:7"],"defaultStatus":"unknown","packageName":"samba","product":"Red Hat Enterprise Linux 7","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:7aafda606c38a6cdf4fee5eba9699a1aa0daf48af88ab23123e6ab9af8696d3f · sha256:2035d336fa42b477… · /containers/cna/affected/3
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:9"],"defaultStatus":"unknown","packageName":"samba","product":"Red Hat Enterprise Linux 9","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:7aafda606c38a6cdf4fee5eba9699a1aa0daf48af88ab23123e6ab9af8696d3f · sha256:2035d336fa42b477… · /containers/cna/affected/5
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:openshift:4"],"defaultStatus":"unknown","packageName":"rhcos","product":"Red Hat OpenShift Container Platform 4","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:7aafda606c38a6cdf4fee5eba9699a1aa0daf48af88ab23123e6ab9af8696d3f · sha256:2035d336fa42b477… · /containers/cna/affected/6

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":5.3,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:7aafda606c38a6cdf4fee5eba9699a1aa0daf48af88ab23123e6ab9af8696d3f · sha256:2035d336fa42b477… · /containers/cna/metrics/1/cvssV3_1

CWE assertions

1 source assertion
{"cweId":"CWE-125","description":"Out-of-bounds Read","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:7aafda606c38a6cdf4fee5eba9699a1aa0daf48af88ab23123e6ab9af8696d3f · sha256:2035d336fa42b477… · /containers/cna/problemTypes/0/descriptions/0

Source references

4 source assertions
{"tags":["vdb-entry","x_refsource_REDHAT"],"url":"https://access.redhat.com/security/cve/CVE-2026-58216"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:7aafda606c38a6cdf4fee5eba9699a1aa0daf48af88ab23123e6ab9af8696d3f · sha256:2035d336fa42b477… · /containers/cna/references/0
{"name":"RHBZ#2502721","tags":["issue-tracking","x_refsource_REDHAT"],"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2502721"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:7aafda606c38a6cdf4fee5eba9699a1aa0daf48af88ab23123e6ab9af8696d3f · sha256:2035d336fa42b477… · /containers/cna/references/1
{"url":"https://bugzilla.samba.org/show_bug.cgi?id=16087"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:7aafda606c38a6cdf4fee5eba9699a1aa0daf48af88ab23123e6ab9af8696d3f · sha256:2035d336fa42b477… · /containers/cna/references/2
{"url":"https://www.samba.org/samba/security/CVE-2026-58216.html"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:7aafda606c38a6cdf4fee5eba9699a1aa0daf48af88ab23123e6ab9af8696d3f · sha256:2035d336fa42b477… · /containers/cna/references/3

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.

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