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CVE-2026-80924crypto: krb5 - use kfree_sensitive() for derived key buffers
- 7.5HighCVSS base score
- 0.32%Exploitation in 30 daysEPSS · top 74% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
In the Linux kernel, the following vulnerability has been resolved: crypto: krb5 - use kfree_sensitive() for derived key buffers crypto_krb5_prepare_encryption() and crypto_krb5_prepare_checksum() free the buffer holding the freshly derived keys with plain kfree(), leaving the key material behind in the freed slab object.
Timeline
ID reserved
By Linux
- 14 days later
· 14 days later
Published
- 40 days later
· 40 days later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| LinuxCNA (assigner) | 3.1 | High7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
| NVDNVD · Received | 3.1 | High7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
- EPSS (exploitation in 30 days)
- 0.32% · top 74% of all CVEs (14 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.
Affected products
- affected 3936f02bf2d3308a7359dd37dd96cd60603d8170 – < 731a5b6fb4c1705f9405d9029dd64ea81e336207
- affected 3936f02bf2d3308a7359dd37dd96cd60603d8170 – < 91b96dc9cc250cd16751f53de525cf3442ca0962
- affected 3936f02bf2d3308a7359dd37dd96cd60603d8170 – < a1bf79365794783b19f5b09e8a23f7ee311e8931
- affected 3936f02bf2d3308a7359dd37dd96cd60603d8170 – < f7d53dd3f267e46a784f219a75072f2f400d42b9
- affected 6.15
- unaffected < 6.15
- unaffected 6.18.49 – ≤ 6.18.*
- unaffected 7.1.13 – ≤ 7.1.*
- unaffected 7.2.3 – ≤ 7.2.*
- unaffected 7.3 – ≤ *
References
References4
- https://git.kernel.org/stable/c/731a5b6fb4c1705f9405d9029dd64ea81e336207 (opens in a new tab)
- https://git.kernel.org/stable/c/91b96dc9cc250cd16751f53de525cf3442ca0962 (opens in a new tab)
- https://git.kernel.org/stable/c/a1bf79365794783b19f5b09e8a23f7ee311e8931 (opens in a new tab)
- https://git.kernel.org/stable/c/f7d53dd3f267e46a784f219a75072f2f400d42b9 (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2026-75101 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2026-80924)Record last updated .