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CVE-2025-68188tcp: use dst_dev_rcu() in tcp_fastopen_active_disable_ofo_check()
- —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: tcp: use dst_dev_rcu() in tcp_fastopen_active_disable_ofo_check() Use RCU to avoid a pair of atomic operations and a potential UAF on dst_dev()->flags.
Timeline
ID reserved
By Linux
Published
- 11 months later
· 11 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: Deferred.
- EPSS (exploitation in 30 days)
- 0.22% · top 87% of all CVEs (13 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Not scored.
Affected products
- affected cf1ef3f0719b4dcb74810ed507e2a2540f9811b4 – < d3fe882ed33a1e45921764f4615bf82db79d8dcd
- affected cf1ef3f0719b4dcb74810ed507e2a2540f9811b4 – < e61dfd906ad027a4ade1f89e5fe706a3fcd52527
- affected cf1ef3f0719b4dcb74810ed507e2a2540f9811b4 – < bc2b881a0896c111c1041d8bb1f92a3b3873ace5
- affected cf1ef3f0719b4dcb74810ed507e2a2540f9811b4 – < 06da08d9355bf8e2070459bbedbe372ccc02cc0e
- affected cf1ef3f0719b4dcb74810ed507e2a2540f9811b4 – < b62a59c18b692f892dcb8109c1c2e653b2abc95c
- affected 4.12
- unaffected < 4.12
- unaffected 6.1.191 – ≤ 6.1.*
- unaffected 6.6.160 – ≤ 6.6.*
- unaffected 6.12.58 – ≤ 6.12.*
- unaffected 6.17.8 – ≤ 6.17.*
- unaffected 6.18 – ≤ *
References
References5
- https://git.kernel.org/stable/c/d3fe882ed33a1e45921764f4615bf82db79d8dcd (opens in a new tab)
- https://git.kernel.org/stable/c/e61dfd906ad027a4ade1f89e5fe706a3fcd52527 (opens in a new tab)
- https://git.kernel.org/stable/c/bc2b881a0896c111c1041d8bb1f92a3b3873ace5 (opens in a new tab)
- https://git.kernel.org/stable/c/06da08d9355bf8e2070459bbedbe372ccc02cc0e (opens in a new tab)
- https://git.kernel.org/stable/c/b62a59c18b692f892dcb8109c1c2e653b2abc95c (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-2025-203708 (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-2025-68188)Record last updated .