7.5

CVE-2023-26253: gluster glusterfs Out-of-bounds Read

CVSS: 7.5v3.1HighModified
AliasesUBUNTU-CVE-2023-26253USN-5989-1USN-6157-1
Published 21-02-2023Last modified 14-03-2025
Open JSON

Vulnerability summary

CVE-2023-26253 is a high (CVSS 7.5) Out-of-bounds Read vulnerability in gluster glusterfs. EPSS estimates a 0.91% chance of exploitation in the next 30 days, higher than 59.4% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
40/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.5/10
010
High · v3.1 (CVE.org)
EPSS score
0.91%
0%100%
Low · +0.01 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1github

Timeline

  1. 21-02-2023
    PublishedVulnerability first disclosed.
  2. 14-03-2025
    Last modifiedVulnerability information updated.

Description

In Gluster GlusterFS 11.0, there is an xlators/mount/fuse/src/fuse-bridge.c notify stack-based buffer over-read.

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.91%

Chance of exploitation in the next 30 days

Percentile

59%

Versus all other CVEs

30-day change

+0.01 pp

From 0.91% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.91%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

1 found
  • githubUnverified

    Glusterfs

    Maturity: poc

Weaknesses

CWE · root cause

Affected systems

Debian1 product
  • glusterfs< 10.3-5
Gluster1 product
Ubuntu1 product
  • glusterfsAll versions (No fix recorded) | < 3.7.6-1ubuntu1+esm2 | < 10.1-1ubuntu0.1

3 vendors · 3 products

References

9 links