5.5

CVE-2023-53672: linux

CVSS: 5.5v3.1MediumAnalyzed
AliasesUBUNTU-CVE-2023-53672DEBIAN-CVE-2023-53672
Published 07-10-2025Last modified 11-05-2026
Open JSON

Vulnerability summary

CVE-2023-53672 is a medium (CVSS 5.5) vulnerability in linux. EPSS estimates a 0.14% chance of exploitation in the next 30 days, higher than 3.4% 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
0.14%
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 11 · Related 11
SUSE-SU-2025:21040-1SUSE-SU-2025:21052-1SUSE-SU-2025:21056-1SUSE-SU-2025:21064-1SUSE-SU-2025:4057-1SUSE-SU-2025:4128-1

Timeline

  1. 07-10-2025
    PublishedVulnerability first disclosed.
  2. 11-05-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: btrfs: output extra debug info if we failed to find an inline backref [BUG] Syzbot reported several warning triggered inside lookup_inline_extent_backref(). [CAUSE] As usual, the reproducer doesn't reliably trigger locally here, but at least we know the WARN_ON() is triggered when an inline backref can not be found, and it can only be triggered when @insert is true. (I.e. inserting a new inline backref, which means the backref should already exist) [ENHANCEMENT] After the WARN_ON(), dump all the parameters and the extent tree leaf to help debug.

CVSS metrics

3 scores · 3 sources · 1 version

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

Ubuntu124 products
  • linuxAll versions (No fix recorded) | < 5.4.0-169.187 | < 5.15.0-94.104
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 5.4.0-1116.126 | < 5.15.0-1053.58
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ 492104c866cb1b62a11393adccb477f5cd2c7768, < 376b41524b71e494514720bd6114325b0a2ed19c | ≥ 492104c866cb1b62a11393adccb477f5cd2c7768, < 400e08a16604b534fdd82c5a288fa150d04f5f79 | ≥ 492104c866cb1b62a11393adccb477f5cd2c7768, < 7afbfde45d665953b4d5a42a721e15bf0315d89b | ≥ 492104c866cb1b62a11393adccb477f5cd2c7768, < b7c3cf2f6c42e6688b1c37215a0b1663f982f915 | ≥ 492104c866cb1b62a11393adccb477f5cd2c7768, < 6994f806c6d1ae8b59344d3700358547f3b3fe1d | ≥ 492104c866cb1b62a11393adccb477f5cd2c7768, < 28062cd6eda04035d8f6ded2001292ac8b496149 | ≥ 492104c866cb1b62a11393adccb477f5cd2c7768, < e70ba449b04b40584bdabb383d10455397cbf177 | ≥ 492104c866cb1b62a11393adccb477f5cd2c7768, < 7f72f50547b7af4ddf985b07fc56600a4deba281 | 3.9
  • linux_kernel≥ 3.9.1, < 4.14.326 | ≥ 4.15, < 4.19.295 | ≥ 4.20, < 5.4.257 | ≥ 5.5, < 5.10.197 | ≥ 5.11, < 5.15.133 | ≥ 5.16, < 6.1.55 | ≥ 6.2, < 6.5.5 | 3.9 | 3.9:rc3 | 3.9:rc4 | 3.9:rc5 | 3.9:rc6 | 3.9:rc7 | 3.9:rc8
Debian1 product
  • linux< 6.1.55-1 | < 6.5.6-1

3 vendors · 127 products

References

12 links
Show all 12 references