CVE-2026-53295
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)
0.1%
3.0th percentile
CISA KEV
Not listed
Weakness / dates
—
Published 2026-06-26 · modified 2026-09-08
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
- 2026-06-26 — Published (NVD)
- 2026-09-08 — Last modified (NVD)
Description
In the Linux kernel, the following vulnerability has been resolved: mailbox: add sanity check for channel array Fail gracefully if there is no channel array attached to the mailbox controller. Otherwise the later dereference will cause an OOPS which might not be seen because mailbox controllers might instantiate very early. Remove the comment explaining the obvious while here.
Affected
References
- https://git.kernel.org/stable/c/0f11444271110d9b5bc6316a153c6431abda899c
- https://git.kernel.org/stable/c/14aed0d4e58389cc6a88acf8610b12d3e476272b
- https://git.kernel.org/stable/c/37792091ab28ba030fd8d61184c47d4d51294170
- https://git.kernel.org/stable/c/5cc3300fab262b26c28bc2fc06df693410c3840b
- https://git.kernel.org/stable/c/6362c4a7d7e21e68cd9aa04df7cde16befba3a4b
- https://git.kernel.org/stable/c/9dd7489943324298bb0f385495795a82f1dd6507
- https://git.kernel.org/stable/c/c1aad75595fb67edc7fda8af249d3b886efa1be9
- https://git.kernel.org/stable/c/d44872a569b8fbacde457ff2587a775e5004bb79
- https://cert-portal.siemens.com/productcert/html/ssa-019113.html