CVE-2026-64306
Low
No strong exploitation signal.
CVSS base
5.5
MEDIUM
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS — probability of exploitation (30 days)
0.2%
5.6th percentile
CISA KEV
Not listed
Weakness / dates
—
Published 2026-07-25 · modified 2026-09-03
CVSS breakdown
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
| Attack Vector | L | Local |
| Attack Complexity | L | Low |
| Privileges Required | L | Low |
| User Interaction | N | None |
| Scope | U | Unchanged |
| Confidentiality | N | None |
| Integrity | N | None |
| Availability | H | High |
Timeline
- 2026-07-25 — Published (NVD)
- 2026-09-03 — Last modified (NVD)
Description
In the Linux kernel, the following vulnerability has been resolved: crypto: drbg - Fix returning success on failure in CTR_DRBG drbg_ctr_generate() sometimes returns success when it fails, leaving the output buffer uninitialized. Fix it.
Affected
References
- https://git.kernel.org/stable/c/074db6db03a0aaa78f05ca9d4838053713796665
- https://git.kernel.org/stable/c/23b8b188cb32e5531d0f8d3af9506f8959cb369e
- https://git.kernel.org/stable/c/39a31ad9e2a5ed7e9c9c6f711dca96c8c8f5f26b
- https://git.kernel.org/stable/c/75597e8774f319152744d24e0683d9393540a951
- https://git.kernel.org/stable/c/7b03312491f9fe6ba4d60c4023e7e61d2d1fed96
- https://git.kernel.org/stable/c/a9e886f73dd717027028bb7e3bbca93601ecdfc7
- https://git.kernel.org/stable/c/bbbac12083eff489b35d848332f0dff311131344
- https://git.kernel.org/stable/c/cc42fb40171c249bb859071d81b4eb007398a0bc