4.6

CVE-2023-25012: linux linux_kernel Use After Free

CVSS: 4.6v3.1MediumModified
AliasesUBUNTU-CVE-2023-25012DEBIAN-CVE-2023-25012
Published 01-02-2023Last modified 05-05-2025

Vulnerability summary

CVE-2023-25012 is a medium (CVSS 4.6) Use After Free vulnerability in linux linux_kernel. EPSS estimates a 0.79% chance of exploitation in the next 30 days, higher than 55.6% of scored vulnerabilities. 2 public exploits are recorded.

Overall risk
29/100
0100
Medium · default modelHow is this calculated?
CVSS score
4.6/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.79%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits2reference

Advisory lineage

Upstream 0 · Downstream 22 · Related 19

Timeline

  1. 01-02-2023
    PublishedVulnerability first disclosed.
  2. 05-05-2025
    Last modifiedVulnerability information updated.

Description

The Linux kernel through 6.1.9 has a Use-After-Free in bigben_remove in drivers/hid/hid-bigbenff.c via a crafted USB device because the LED controllers remain registered for too long.

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.79%

Chance of exploitation in the next 30 days

Percentile

56%

Versus all other CVEs

30-day change

0.00 pp

From 0.79% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.79%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

2 found
  • referenceUnverified

    Exploit Reference (seclists.org)

    Maturity: unknown

  • referenceUnverified

    Exploit Reference (openwall.com)

    Maturity: unknown

Weaknesses

CWE · root cause

Affected systems

Ubuntu87 products
  • linux< 5.4.0-152.169 | < 5.15.0-75.82
  • linux-aws< 5.4.0-1104.112 | < 5.15.0-1038.43
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
  • linux-aws-5.13All versions (No fix recorded)
Debian1 product
  • linux< 6.1.20-1
Linux1 product

3 vendors · 89 products

References

23 links
Show all 23 references