7.8

CVE-2023-52433: netfilter: nft_set_rbtree: skip sync GC for new elements in this transaction

Modified
AliasesUBUNTU-CVE-2023-52433DEBIAN-CVE-2023-52433
Published 20-02-2024Last modified 05-08-2026

Vulnerability summary

CVE-2023-52433 is a high (CVSS 7.8) Improper Check for Dropped Privileges vulnerability in linux. EPSS estimates a 0.26% chance of exploitation in the next 30 days, higher than 18.3% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 7.8, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
7.8/10
010
High · v3.1 (CVE.org)
EPSS score
0.26%
0%100%
Low · +0.01 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 7 · Related 7
SUSE-SU-2024:2010-1SUSE-SU-2024:2183-1SUSE-SU-2024:2185-1SUSE-SU-2026:0474-1SUSE-SU-2026:0496-1SUSE-SU-2026:0617-1

Timeline

  1. 20-02-2024
    PublishedVulnerability first disclosed.
  2. 05-08-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: netfilter: nft_set_rbtree: skip sync GC for new elements in this transaction New elements in this transaction might expired before such transaction ends. Skip sync GC for such elements otherwise commit path might walk over an already released object. Once transaction is finished, async GC will collect such expired element.

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.26%

Chance of exploitation in the next 30 days

Percentile

18%

Versus all other CVEs

30-day change

Increase +0.01 pp

From 0.25% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu75 products
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
  • linux-aws-5.13All versions (No fix recorded)
  • linux-aws-5.19All versions (No fix recorded)
Linux2 products
  • linux≥ cb4d00b563675ba8ff6ef94b077f58d816f68ba3, < 9db9feb841f7449772f9393c16b9ef4536d8c127 | ≥ c357648929c8dff891502349769aafb8f0452bc2, < 03caf75da1059f0460666c826e9f50e13dfd0017 | ≥ 146c76866795553dbc19998f36718d7986ad302b, < c323ed65f66e5387ee0a73452118d49f1dae81b8 | ≥ 479a2cf5259347d6a1f658b0f791d27a34908e91, < 9af7dfb3c9d7985172a240f85e684c5cd33e29ce | ≥ df650d6a4bf47248261b61ef6b174d7c54034d15, < 9a8c544158f68f656d1734eb5ba00c4f817b76b1 | ≥ f6c383b8c31a93752a52697f8430a71dcbc46adf, < e3213ff99a355cda811b41e8dbb3472d13167a3a | ≥ f6c383b8c31a93752a52697f8430a71dcbc46adf, < 2ee52ae94baabf7ee09cf2a8d854b990dac5d0e4 | e4d71d6a9c7db93f7bf20c3a0f0659d63d7de681 | ≥ 6.4.11, < 6.5 | 6.5
  • linux_kernel≥ 6.5, < 6.5.4
Debian1 product
  • linux< 6.5.6-1
Netapp1 product

4 vendors · 79 products

References

12 links
Show all 12 references