7.8

CVE-2023-54035: linux

CVSS: 7.8v3.1HighDeferred
AliasesUBUNTU-CVE-2023-54035DEBIAN-CVE-2023-54035
Published 24-12-2025Last modified 05-08-2026
Open JSON

Vulnerability summary

CVE-2023-54035 is a high (CVSS 7.8) vulnerability in linux. EPSS estimates a 0.14% chance of exploitation in the next 30 days, higher than 3.2% of scored vulnerabilities.

Overall risk
31/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.8/10
010
High · v3.1 (CVE.org)
EPSS score
0.14%
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 10 · Related 8
RHSA-2024:2394RHSA-2024:3421SUSE-SU-2026:0278-1SUSE-SU-2026:0281-1SUSE-SU-2026:0293-1SUSE-SU-2026:0315-1

Timeline

  1. 24-12-2025
    PublishedVulnerability first disclosed.
  2. 05-08-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: fix underflow in chain reference counter Set element addition error path decrements reference counter on chains twice: once on element release and again via nft_data_release(). Then, d6b478666ffa ("netfilter: nf_tables: fix underflow in object reference counter") incorrectly fixed this by removing the stateful object reference count decrement. Restore the stateful object decrement as in b91d90368837 ("netfilter: nf_tables: fix leaking object reference count") and let nft_data_release() decrement the chain reference counter, so this is done only once.

CVSS metrics

5 scores · 4 sources · 2 versions

EPSS trend

Probability

0.14%

Chance of exploitation in the next 30 days

Percentile

3%

Versus all other CVEs

30-day change

0.00 pp

From 0.14% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.14%

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

Ubuntu121 products
  • linuxAll versions (No fix recorded)
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded)
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Debian1 product
  • linux< 6.1.52-1 | < 6.4.4-1
Linux1 product
  • linux≥ 35651fde1a7bb54dde0a46d35cd0d7136869ae86, < b068314fd8ce751a7f906e55bb90f3551815f1a0 | ≥ 628bd3e49cba1c066228e23d71a852c23e26da73, < 9c959671abc7d4ffdf34eed10c64492d43cb6a3c | ≥ 628bd3e49cba1c066228e23d71a852c23e26da73, < b389139f12f287b8ed2e2628b72df89a081f0b59 | bc9f791d2593f17e39f87c6e2b3a36549a3705b1 | 3c7ec098e3b588434a8b07ea9b5b36f04cef1f50 | a136b7942ad2a50de708f76ea299ccb45ac7a7f9 | 25aa2ad37c2162be1c0bc4fe6397f7e4c13f00f8 | d60be2da67d172aecf866302c91ea11533eca4d9 | dc7cdf8cbcbf8b13de1df93f356ec04cdeef5c41 | ≥ 4.19.316, < 4.20 | ≥ 5.4.262, < 5.5 | ≥ 5.10.188, < 5.11 | ≥ 5.15.121, < 5.16 | ≥ 6.3.10, < 6.4 | 6.4

3 vendors · 123 products

References

6 links