CVE-2026-68351wifi: carl9170: bound memcpy length in cmd callback to prevent OOB read
- —Not scoredno CVSS score yet
- 0.22%Exploitation in 30 daysEPSS · top 87% 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: wifi: carl9170: bound memcpy length in cmd callback to prevent OOB read When the firmware sends a command response with a length mismatch, carl9170_cmd_callback() logs the mismatch and calls carl9170_restart() but then falls through to memcpy(ar->readbuf, buffer + 4, len - 4). Since len comes from the firmware and can exceed ar->readlen, this copies more data than the readbuf was allocated for. Bound the memcpy to min(len - 4, ar->readlen) so that the response is still completed -- avoiding repeated restarts from queued garbage -- while preventing an overread past the response buffer.
Timeline
ID reserved
By Linux
- 11 days later
· 11 days later
Published
- 3 months later
· 3 months 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
No CVSS score yet: neither the CNA, CISA nor NVD has scored this CVE. NVD status: Received.
- EPSS (exploitation in 30 days)
- 0.22% · top 87% of all CVEs (13 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: Not scored.
Affected products
- affected a84fab3cbfdc427e7d366f1cc844f27b2084c26c – < 38e240996a6a78c94ab07d461fd66e361d55c3c4
- affected a84fab3cbfdc427e7d366f1cc844f27b2084c26c – < 2d05c321d27624c413c950278d2dc8e0f44a8950
- affected a84fab3cbfdc427e7d366f1cc844f27b2084c26c – < 525036b20ef01d814a7fcd0567d123992e4479fa
- affected a84fab3cbfdc427e7d366f1cc844f27b2084c26c – < f74e34e66379e487a09009a4f2d42470051672bd
- affected a84fab3cbfdc427e7d366f1cc844f27b2084c26c – < 500c36649f270de05a56591fcc1aaaa36687958e
- affected a84fab3cbfdc427e7d366f1cc844f27b2084c26c – < 9aee949c68dc6dccbc54333537b109c53fe2079f
- affected a84fab3cbfdc427e7d366f1cc844f27b2084c26c – < cb7a38810cf25738176dac32dec7a146b3f959cf
- affected a84fab3cbfdc427e7d366f1cc844f27b2084c26c – < 4cde55b2feff9504d1f993ab80e84e7ccb62791c
- affected 2.6.37
- unaffected < 2.6.37
- unaffected 5.10.265 – ≤ 5.10.*
- unaffected 5.15.216 – ≤ 5.15.*
- unaffected 6.1.183 – ≤ 6.1.*
- unaffected 6.6.148 – ≤ 6.6.*
- unaffected 6.12.101 – ≤ 6.12.*
- unaffected 6.18.42 – ≤ 6.18.*
- unaffected 7.1.6 – ≤ 7.1.*
- unaffected 7.2 – ≤ *
References
References8
- https://git.kernel.org/stable/c/38e240996a6a78c94ab07d461fd66e361d55c3c4 (opens in a new tab)
- https://git.kernel.org/stable/c/2d05c321d27624c413c950278d2dc8e0f44a8950 (opens in a new tab)
- https://git.kernel.org/stable/c/525036b20ef01d814a7fcd0567d123992e4479fa (opens in a new tab)
- https://git.kernel.org/stable/c/f74e34e66379e487a09009a4f2d42470051672bd (opens in a new tab)
- https://git.kernel.org/stable/c/500c36649f270de05a56591fcc1aaaa36687958e (opens in a new tab)
- https://git.kernel.org/stable/c/9aee949c68dc6dccbc54333537b109c53fe2079f (opens in a new tab)
- https://git.kernel.org/stable/c/cb7a38810cf25738176dac32dec7a146b3f959cf (opens in a new tab)
- https://git.kernel.org/stable/c/4cde55b2feff9504d1f993ab80e84e7ccb62791c (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-2026-55452 (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-2026-68351)Record last updated .