CVE-2025-68785: Linux kernel · Out-of-bounds Read
Affects Linux kernelSource CVE Database V5
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
- 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:HExploitation evidence
Disclosed: evidence found.
CVE published 13 Jan 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by 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
| Product | Affected | Fixed in |
|---|---|---|
| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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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
- git.kernel.org/stable/c/d0c135b8bbbcf92836068fd395bebeb7ae6c7bef (opens in a new tab)
- git.kernel.org/stable/c/3bc2efff20a38b2c7ca18317649715df0dd62ced (opens in a new tab)
- git.kernel.org/stable/c/1b569db9c2f28b599e40050524aae5f7332bc294 (opens in a new tab)
- git.kernel.org/stable/c/10ffc558246f2c75619aedda0921906095e46702 (opens in a new tab)
- git.kernel.org/stable/c/2ecfc4433acdb149eafd7fb22d7fd4adf90b25e9 (opens in a new tab)
- git.kernel.org/stable/c/c999153bfb2d1d9b295b7010d920f2a7c6d7595f (opens in a new tab)
- git.kernel.org/stable/c/5ace7ef87f059d68b5f50837ef3e8a1a4870c36e (opens in a new tab)