CVE-2026-31674
HIGHnetfilter: ip6t_rt: reject oversized addrnr in rt_mt6_check()
Title source: cnaDescription
In the Linux kernel, the following vulnerability has been resolved: netfilter: ip6t_rt: reject oversized addrnr in rt_mt6_check() Reject rt match rules whose addrnr exceeds IP6T_RT_HOPS. rt_mt6() expects addrnr to stay within the bounds of rtinfo->addrs[]. Validate addrnr during rule installation so malformed rules are rejected before the match logic can use an out-of-range value.
References (8)
Core 8
Core References
Scores
CVSS v3
7.1
EPSS
0.0001
EPSS Percentile
2.5%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
Details
Status
published
Products (21)
Linux/Linux
< 2.6.12
Linux/Linux
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 - 13e3e30ed3b5b67cc1db2bd58a5d09b0f07debfa
Linux/Linux
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 - 29ea965a1353bc8303877422f79c8211e9ba9c55
Linux/Linux
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 - 9d3f027327c2fa265f7f85ead41294792c3296ed
Linux/Linux
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 - a28ebf6f99de270d6338ccdc3b49f3e818f99b7b
Linux/Linux
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 - af9b7e2b765966457f4ec23be5bd34a141f89574
Linux/Linux
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 - c6a503a9f4debc654e3a6a7ca1f7fce6a9953c59
Linux/Linux
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 - d8795fde1f78669a87c87ac29fceab2f104daa8c
Linux/Linux
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 - ded71f5684df16fa645cca5bf4fe6b0cd8a46119
Linux/Linux
2.6.12
... and 11 more
Published
Apr 25, 2026
Tracked Since
Apr 25, 2026