5.5

CVE-2026-45901: linux

CVSS: 5.5v3.1MediumUndergoing analysis
AliasesUBUNTU-CVE-2026-45901DEBIAN-CVE-2026-45901CGA-2384-5p23-79w4
Published 27-05-2026Last modified 03-08-2026
Open JSON

Vulnerability summary

CVE-2026-45901 is a medium (CVSS 5.5) vulnerability in linux. EPSS estimates a 0.16% chance of exploitation in the next 30 days, higher than 4.7% 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
0.16%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 7 · Related 8
OPENSUSE-SU-2026:21388-1SUSE-SU-2026:22742-1SUSE-SU-2026:22769-1SUSE-SU-2026:22812-1SUSE-SU-2026:22835-1USN-8917-1

Timeline

  1. 27-05-2026
    PublishedVulnerability first disclosed.
  2. 03-08-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: revert commit_mutex usage in reset path It causes circular lock dependency between commit_mutex, nfnl_subsys_ipset and nlk_cb_mutex when nft reset, ipset list, and iptables-nft with '-m set' rule run at the same time. Previous patches made it safe to run individual reset handlers concurrently so commit_mutex is no longer required to prevent this.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.16%

Chance of exploitation in the next 30 days

Percentile

5%

Versus all other CVEs

30-day change

0.00 pp

From 0.16% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.16%

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

Ubuntu132 products
  • linuxAll versions (No fix recorded) | < 6.8.0-147.147
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 6.8.0-1067.70
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Chainguard40 products
  • hyperv-daemons-6.18All versions (No fix recorded)
  • linux-aws-6.12All versions (No fix recorded)
  • linux-aws-6.18All versions (No fix recorded) | < 6.18.42-r0
  • linux-aws-6.18-boot-installed< 6.18.42-r0
  • linux-aws-6.18-bootcAll versions (No fix recorded) | < 6.18.42-r0
Debian2 products
  • linuxAll versions (No fix recorded) | < 6.12.101-1 | < 6.19.6-1
  • linux-6.12< 6.12.101-1~deb12u1
Linux2 products
  • linux≥ 3cb03edb4de33fd04c4ea55f47397b96a8657c53, < d66bedfe97a2bc321fa8118e669aae988038f729 | ≥ 3cb03edb4de33fd04c4ea55f47397b96a8657c53, < f6410d18c1e2da325df02be989d5bca5ed38b086 | ≥ 3cb03edb4de33fd04c4ea55f47397b96a8657c53, < ee3978b6a0dcd4215cb7cedcba705a12174786a7 | ≥ 3cb03edb4de33fd04c4ea55f47397b96a8657c53, < 7f261bb906bf527c4a6e2a646e2d5f3679f2a8bc | fb1adb05ea87b6149e65a31e511756c4f470d0cd | f123293db16dcd0cd81b246ae60e6362f0025d0a | ≥ 6.1.107, < 6.2 | ≥ 6.6.48, < 6.7 | 6.7
  • linux_kernel≥ 6.1.107, < 6.2 | ≥ 6.6.48, < 6.19.4

4 vendors · 176 products

References

10 links