8.8

CVE-2023-52846: linux Use After Free

CVSS: 8.8v3.1HighModified
AliasesUBUNTU-CVE-2023-52846DEBIAN-CVE-2023-52846
Published 21-05-2024Last modified 05-08-2026
Open JSON

Vulnerability summary

CVE-2023-52846 is a high (CVSS 8.8) Use After Free vulnerability in linux. EPSS estimates a 0.34% chance of exploitation in the next 30 days, higher than 26.5% of scored vulnerabilities.

Overall risk
35/100
0100
Medium · default modelHow is this calculated?
CVSS score
8.8/10
010
High · v3.1 (CVE.org)
EPSS score
0.34%
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 101 · Related 101
SUSE-SU-2024:2372-1SUSE-SU-2024:2385-1SUSE-SU-2024:2394-1SUSE-SU-2024:2495-1SUSE-SU-2024:2571-1SUSE-SU-2024:2896-1

Showing 100 of 101. Use Open JSON for the complete list.

Timeline

  1. 21-05-2024
    PublishedVulnerability first disclosed.
  2. 05-08-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: hsr: Prevent use after free in prp_create_tagged_frame() The prp_fill_rct() function can fail. In that situation, it frees the skb and returns NULL. Meanwhile on the success path, it returns the original skb. So it's straight forward to fix bug by using the returned value.

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.34%

Chance of exploitation in the next 30 days

Percentile

27%

Versus all other CVEs

30-day change

0.00 pp

From 0.34% on 18-09-2026

18-09-202618-10-2026
EPSS score
0.34%

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

Affected systems

Ubuntu104 products
  • linux< 5.15.0-100.110
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-aws< 5.15.0-1056.61
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ 451d8123f89791bb628277c0bdb4cae34a3563e6, < ddf4e04e946aaa6c458b8b6829617cc44af2bffd | ≥ 451d8123f89791bb628277c0bdb4cae34a3563e6, < a1a485e45d24b1cd8fe834fd6f1b06e2903827da | ≥ 451d8123f89791bb628277c0bdb4cae34a3563e6, < 6086258bd5ea7b5c706ff62da42b8e271b2401db | ≥ 451d8123f89791bb628277c0bdb4cae34a3563e6, < 1787b9f0729d318d67cf7c5a95f0c3dba9a7cc18 | ≥ 451d8123f89791bb628277c0bdb4cae34a3563e6, < d103fb6726904e353b4773188ee3d3acb4078363 | ≥ 451d8123f89791bb628277c0bdb4cae34a3563e6, < 876f8ab52363f649bcc74072157dfd7adfbabc0d | 5.9
  • linux_kernel≥ 5.9, < 5.10.201 | ≥ 5.11, < 5.15.139 | ≥ 5.16, < 6.1.63 | ≥ 6.2, < 6.5.12 | ≥ 6.6, < 6.6.2
Debian1 product
  • linux< 6.1.64-1 | < 6.6.8-1

3 vendors · 107 products

References

10 links