5.5

CVE-2026-43024: linux

CVSS: 5.5v3.1MediumModified
AliasesUBUNTU-CVE-2026-43024DEBIAN-CVE-2026-43024
Published 01-05-2026Last modified 15-10-2026
Open JSON

Vulnerability summary

CVE-2026-43024 is a medium (CVSS 5.5) vulnerability in linux. EPSS estimates a 0.17% chance of exploitation in the next 30 days, higher than 6.1% of scored vulnerabilities.

Overall risk
22/100
0100
Low · default modelHow is this calculated?
CVSS score
5.5/10
010
Medium · v3.1 (NVD)
EPSS score
0.17%
0%100%
Low · +0.04 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 41 · Related 39
MGASA-2026-0108MGASA-2026-0110OPENSUSE-SU-2026:21388-1SUSE-SU-2026:22433-1SUSE-SU-2026:22436-1SUSE-SU-2026:22458-1

Timeline

  1. 01-05-2026
    PublishedVulnerability first disclosed.
  2. 15-10-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: reject immediate NF_QUEUE verdict nft_queue is always used from userspace nftables to deliver the NF_QUEUE verdict. Immediately emitting an NF_QUEUE verdict is never used by the userspace nft tools, so reject immediate NF_QUEUE verdicts. The arp family does not provide queue support, but such an immediate verdict is still reachable. Globally reject NF_QUEUE immediate verdicts to address this issue.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.17%

Chance of exploitation in the next 30 days

Percentile

6%

Versus all other CVEs

30-day change

+0.04 pp

From 0.13% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.17%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Ubuntu157 products
  • linuxAll versions (No fix recorded) | < 5.15.0-186.196 | < 6.8.0-136.136
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 5.15.0-1112.119 | < 6.8.0-1061.64
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ 55a60251fa50d4e68175e36666b536a602ce4f6c, < 2f7f825a548be55420f0f5f716f6c27b9d312d3f | ≥ 960cf4f812530f01f6acc6878ceaa5404c06af7b, < f140593901724cfbd16597c3a4fcb24a58ae44b0 | ≥ 8e34430e33b8a80bc014f3efe29cac76bc30a4b4, < 68390437a998c3f2c57212b413abef5e6d657d88 | ≥ 6653118b176a00915125521c6572ae8e507621db, < 4b12a3cc3f075e750cc3c5e693fd25fb400af4a2 | ≥ f342de4e2f33e0e39165d8639387aa6c19dff660, < f710691be163ae6b39e4bcab9e5be32d329f035b | ≥ f342de4e2f33e0e39165d8639387aa6c19dff660, < 42a47f4b1b7695026ab9bc1bb35d4622b0835c95 | ≥ f342de4e2f33e0e39165d8639387aa6c19dff660, < 17dc5d5a935c771338430cbc156a16a51cfd31e8 | ≥ f342de4e2f33e0e39165d8639387aa6c19dff660, < da107398cbd4bbdb6bffecb2ce86d5c9384f4cec | 8365e9d92b85fda975a5ece7a3a139cb964018c8 | 4e66422f1b56149761dc76030e6345d1cca6f869 | f05a497e7bc8851eeeb3a58da180ba469efebb05 | ≥ 5.10.210, < 5.10.253 | ≥ 5.15.149, < 5.15.203 | ≥ 6.1.76, < 6.1.168 | ≥ 6.6.15, < 6.6.134 | ≥ 4.19.307, < 4.20 | ≥ 5.4.269, < 5.5 | ≥ 6.7.3, < 6.8 | 6.8
  • linux_kernelEOL≥ 4.19.307, < 4.20 | ≥ 5.4.269, < 5.5 | ≥ 5.10.210, < 5.10.253 | ≥ 5.15.149, < 5.15.203 | ≥ 6.1.76, < 6.1.168 | ≥ 6.6.15, < 6.6.134 | ≥ 6.7.3, < 6.8 | ≥ 6.8.1, < 6.12.81 | ≥ 6.13, < 6.18.22 | ≥ 6.19, < 6.19.12 | 6.8 | 6.8:rc2 | 6.8:rc3 | 6.8:rc4 | 6.8:rc5 | 6.8:rc6 | 6.8:rc7 | 7.0:rc1 | 7.0:rc2 | 7.0:rc3 | 7.0:rc4 | 7.0:rc5 | 7.0:rc6
Debian1 product
  • linux< 6.1.170-1 | < 6.12.85-1 | < 6.19.12-1

3 vendors · 160 products

References

42 links
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