Not yet scoredPublished Dec 16, 2025

CVE-2025-68188tcp: use dst_dev_rcu() in tcp_fastopen_active_disable_ofo_check()

Updated under an hour ago (Oct 27, 2026, 12:20 PM ET)

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No exploitation reported and no EPSS estimate yet.

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Exploited in the last 30 days

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.

CVSS: Not yet scored
Weakness (CWE): Not given
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Linux
NVD analysis: Deferred
Record last updated: Oct 21, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	from cf1ef3f0719b4dcb74810ed507e2a2540f9811b4 before e61dfd906ad027a4ade1f89e5fe706a3fcd52527; from cf1ef3f0719b4dcb74810ed507e2a2540f9811b4 before bc2b881a0896c111c1041d8bb1f92a3b3873ace5; from cf1ef3f0719b4dcb74810ed507e2a2540f9811b4 before 06da08d9355bf8e2070459bbedbe372ccc02cc0e; from cf1ef3f0719b4dcb74810ed507e2a2540f9811b4 before b62a59c18b692f892dcb8109c1c2e653b2abc95c	CNA record

References

References

https://git.kernel.org/stable/c/e61dfd906ad027a4ade1f89e5fe706a3fcd52527
https://git.kernel.org/stable/c/bc2b881a0896c111c1041d8bb1f92a3b3873ace5
https://git.kernel.org/stable/c/06da08d9355bf8e2070459bbedbe372ccc02cc0e
https://git.kernel.org/stable/c/b62a59c18b692f892dcb8109c1c2e653b2abc95c

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.