01 Record

CVE-2026-31424

netfilter: x_tables: restrict xt_check_match/xt_check_target extensions for NFPROTO_ARP

UnratedPUBLISHEDCNA: Linux

CNA base scoreUnratedNo CNA CVSS vector

View raw JSON

02 Description

netfilter: x_tables: restrict xt_check_match/xt_check_target extensions for NFPROTO_ARP

03 Exploitation and scoring

Exploitation: Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
SSVC decision: Not assessed by CISA
EPSS probability: 0.12% probability of exploitation activity in the next 30 days.
EPSS percentile: Ranks above 2.4% of scored records. A rank, not a probability.
NVD base score: 5.5 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
NVD analysis status: Modified. NVD last modified this record on 2026-07-14.
Red Hat severity: Moderate. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published

2026-04-13 13:40Z4 MO AGO

Last updated

2026-07-14 12:47Z1 MO AGO

Reserved

2026-03-09

Assigning CNA

Linux

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

CWE-476NULL Pointer DereferenceBase
CWE-1287Improper Validation of Specified Type of InputBase

Data version

5.2

Document digest

8287c66a17413a94bdaa0018a81dcb4b9804f88cb3cac14f32eea49b0fe44c92

05 Affected products

VendorProductVersionsPlatforms

LinuxLinux9291747f118d6404e509747b85ff5f6dfec368d2 to < 80e3c75f71c3ea1e62fcb032382de13e00a68f8b, 9291747f118d6404e509747b85ff5f6dfec368d2 to < d9a0af9e43416aa50c0595e15fa01365a1c72c49, 9291747f118d6404e509747b85ff5f6dfec368d2 to < 1cd6313c8644bfebbd813a05da9daa21b09dd68c, 9291747f118d6404e509747b85ff5f6dfec368d2 to < f00ac65c90ea475719e08d629e2e26c8b4e6999b, 9291747f118d6404e509747b85ff5f6dfec368d2 to < e7e1b6bcb389c8708003d40613a59ff2496f6b1f, 9291747f118d6404e509747b85ff5f6dfec368d2 to < dc3e27dd7d76e21106b8f9bbdc31f5da74a89014, 9291747f118d6404e509747b85ff5f6dfec368d2 to < 3e79374b03bf9a2f282f0eb1d0ac3776f7e0f28a, 9291747f118d6404e509747b85ff5f6dfec368d2 to < 3d5d488f11776738deab9da336038add95d342d1, 2.6.39—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/80e3c75f71c3ea1e62fcb032382de13e00a68f8b
git.kernel.orghttps://git.kernel.org/stable/c/d9a0af9e43416aa50c0595e15fa01365a1c72c49
git.kernel.orghttps://git.kernel.org/stable/c/1cd6313c8644bfebbd813a05da9daa21b09dd68c
git.kernel.orghttps://git.kernel.org/stable/c/f00ac65c90ea475719e08d629e2e26c8b4e6999b
git.kernel.orghttps://git.kernel.org/stable/c/e7e1b6bcb389c8708003d40613a59ff2496f6b1f
git.kernel.orghttps://git.kernel.org/stable/c/dc3e27dd7d76e21106b8f9bbdc31f5da74a89014
git.kernel.orghttps://git.kernel.org/stable/c/3e79374b03bf9a2f282f0eb1d0ac3776f7e0f28a
git.kernel.orghttps://git.kernel.org/stable/c/3d5d488f11776738deab9da336038add95d342d1
cert-portal.siemens.comhttps://cert-portal.siemens.com/productcert/html/ssa-082556.html
cert-portal.siemens.comhttps://cert-portal.siemens.com/productcert/html/ssa-019113.html

01 Record index

CVE-2026-31424

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References

02 Records

CVE-2026-31424

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References