Home/CVE/In the Linux kernel, the following vulnerability has been resolved: netfilter: ip6t_rt: reject oversized addrnr in rt_m
CVE

CVE-2026-31674

In the Linux kernel, the following vulnerability has been resolved: netfilter: ip6t_rt: reject oversized addrnr in rt_m

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.

HIGH · CVSS 7.1 EPSS 0.00015
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0

Affected Products & Versions

8
linux kernel>= 2.6.12.1 and < 5.10.253
linux kernel>= 5.11 and < 5.15.203
linux kernel>= 5.16 and < 6.1.168
linux kernel>= 6.2 and < 6.6.131
linux kernel>= 6.7 and < 6.12.80
linux kernel>= 6.13 and < 6.18.21
linux kernel>= 6.19 and < 6.19.11
linux kernelall versions

Scoring & Timeline

7.1
HIGH · CVSS v3.1 · 416baaa9-dc9f-4396-8d5f-8c081fb06d67
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD25 Apr 2026 · 09:16 AM
CVSS VectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

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