Skip to main content
VulnerabilityPublished Updated

CVE-2025-68785: Linux kernel · Out-of-bounds Read

Affects Linux kernelSource CVE Database V5

0

Not known to be exploited · CVSS 7.1 High · fixed in d0c135b8bbbcf92836068fd395bebeb7ae6c7bef : patch Linux kernel soon.

Data as of 26 Oct 2026, 12:55 UTC

CVSS 3.1 base score
7.1High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.1% chance of exploitation in 30 days – higher than 5% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CISA SSVC
Exploitation
No evidence of active exploitation and no public proof of concept
Automatable
Attackers cannot reliably automate steps 1–4 of the kill chain
Technical impact
Limited control over the software or limited information exposure

CISA SSVC assessment, 2026-06-16.

Patch
Available – fixed in d0c135b8bbbcf92836068fd395bebeb7ae6c7bef, c999153bfb2d1d9b295b7010d920f2a7c6d7595f, 10ffc558246f2c75619aedda0921906095e46702 +4
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 13 Jan 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

ProductAffectedFixed in
LinuxLinuxAffected
  • ≥ b2d0f5d5dc53532e6f07bc546a476a55ebdfe0f3, < d0c135b8bbbcf92836068fd395bebeb7ae6c7bef
Fixed in
  • d0c135b8bbbcf92836068fd395bebeb7ae6c7bef
LinuxLinuxAffected
  • ≥ b2d0f5d5dc53532e6f07bc546a476a55ebdfe0f3, < c999153bfb2d1d9b295b7010d920f2a7c6d7595f
Fixed in
  • c999153bfb2d1d9b295b7010d920f2a7c6d7595f
LinuxLinuxAffected
  • ≥ b2d0f5d5dc53532e6f07bc546a476a55ebdfe0f3, < 10ffc558246f2c75619aedda0921906095e46702
Fixed in
  • 10ffc558246f2c75619aedda0921906095e46702
LinuxLinuxAffected
  • ≥ b2d0f5d5dc53532e6f07bc546a476a55ebdfe0f3, < 5ace7ef87f059d68b5f50837ef3e8a1a4870c36e
Fixed in
  • 5ace7ef87f059d68b5f50837ef3e8a1a4870c36e
LinuxLinuxAffected
  • ≥ b2d0f5d5dc53532e6f07bc546a476a55ebdfe0f3, < 3bc2efff20a38b2c7ca18317649715df0dd62ced
Fixed in
  • 3bc2efff20a38b2c7ca18317649715df0dd62ced
LinuxLinuxAffected
  • ≥ b2d0f5d5dc53532e6f07bc546a476a55ebdfe0f3, < 2ecfc4433acdb149eafd7fb22d7fd4adf90b25e9
Fixed in
  • 2ecfc4433acdb149eafd7fb22d7fd4adf90b25e9

AI-suggested

A fix for this vulnerability is available in the Linux kernel source code as indicated by the fixed commit hashes. Users should update their Linux kernel to a version that includes these fixes. Since this is not a cloud service, manual patching is required. No vendor advisory states that no action is required or that the issue is already mitigated, so applying the official fix is recommended.

Description

CVE-2025-68785 is a high-severity vulnerability in the Linux kernel's Open vSwitch (OVS) component affecting version 4.15. It involves improper validation of a nested attribute in the push_nsh() action, which can lead to invalid memory access and a kernel slab-out-of-bounds read. This flaw arises because the middle attribute in the nested structure is not properly checked, potentially causing memory safety issues during action execution.

References

Community reviews

Loading reviews…