- —Not scoredno CVSS score yet
- 0.16%Exploitation in 30 daysEPSS · top 95% 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: ipv4: stop route notification sizing when nexthop group shrinks Commit 680aea08e78c ("net: ipv4: Emit notification when fib hardware flags are changed") added an RCU-only fib_nlmsg_size() call for asynchronous hardware flag notifications. fib_nlmsg_size() checks fib_info_num_path() before each iteration, then fib_info_nhc() independently reloads nh->nh_grp. If RTM_NEWNEXTHOP replaces a group with fewer paths between those loads, fib_info_nhc() returns NULL and fib_nexthop_nlmsg_size() dereferences it. Stop sizing when the indexed path is absent. Nexthop groups are dense, so the current snapshot has no later path.
Timeline
ID reserved
By Linux
- 28 days later
· 28 days later
Published
- 7 days later
· 7 days 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)
- 0.16% · top 95% of all CVEs (12 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Not scored.
Affected products
- affected 680aea08e78c003292415518ad270bc20f9c80b1 – < 96f3fbb8575593657c7e80786dc3251d2fe3931b
- affected 680aea08e78c003292415518ad270bc20f9c80b1 – < 81f0deb02a5b5477f236bbbaed1149b779a8632b
- affected 680aea08e78c003292415518ad270bc20f9c80b1 – < 72d9d17092bb37b0717f12042a0817d01a1f9e78
- affected 680aea08e78c003292415518ad270bc20f9c80b1 – < ad1c9f1b98c92609e9bb2ae8f05916defc3b0a54
- affected 680aea08e78c003292415518ad270bc20f9c80b1 – < c1f48d1c2d5e9efd904dbbc2f2b3d41543e55c49
- affected 680aea08e78c003292415518ad270bc20f9c80b1 – < ad2b3a68b8a7d5d27de88e05674e4adb1ce46d88
- affected 680aea08e78c003292415518ad270bc20f9c80b1 – < d3daa33c7af92e38f2274bbd2576f58bfbaf89e6
- affected 5.12
- unaffected < 5.12
- unaffected 5.15.224 – ≤ 5.15.*
- unaffected 6.1.191 – ≤ 6.1.*
- unaffected 6.6.160 – ≤ 6.6.*
- unaffected 6.12.113 – ≤ 6.12.*
- unaffected 6.18.57 – ≤ 6.18.*
- unaffected 7.2.11 – ≤ 7.2.*
- unaffected 7.3 – ≤ *
References
References7
- https://git.kernel.org/stable/c/96f3fbb8575593657c7e80786dc3251d2fe3931b (opens in a new tab)
- https://git.kernel.org/stable/c/81f0deb02a5b5477f236bbbaed1149b779a8632b (opens in a new tab)
- https://git.kernel.org/stable/c/72d9d17092bb37b0717f12042a0817d01a1f9e78 (opens in a new tab)
- https://git.kernel.org/stable/c/ad1c9f1b98c92609e9bb2ae8f05916defc3b0a54 (opens in a new tab)
- https://git.kernel.org/stable/c/c1f48d1c2d5e9efd904dbbc2f2b3d41543e55c49 (opens in a new tab)
- https://git.kernel.org/stable/c/ad2b3a68b8a7d5d27de88e05674e4adb1ce46d88 (opens in a new tab)
- https://git.kernel.org/stable/c/d3daa33c7af92e38f2274bbd2576f58bfbaf89e6 (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-2026-108738 (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-2026-99072)Record last updated .