6.5

CVE-2023-25738: mozilla firefox Out-of-bounds Read

CVSS: 6.5v3.1MediumModified
Published 02-06-2023Last modified 09-01-2025
Open JSON

Vulnerability summary

CVE-2023-25738 is a medium (CVSS 6.5) Out-of-bounds Read vulnerability in mozilla firefox. EPSS estimates a 0.64% chance of exploitation in the next 30 days, higher than 49.4% of scored vulnerabilities.

Overall risk
26/100
0100
Medium · default modelHow is this calculated?
CVSS score
6.5/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.64%
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 7 · Related 7
OPENSUSE-SU-2024:12713-1OPENSUSE-SU-2024:12753-1OPENSUSE-SU-2024:14572-1SUSE-SU-2023:0461-1SUSE-SU-2023:0466-1SUSE-SU-2023:0469-1

Timeline

  1. 02-06-2023
    PublishedVulnerability first disclosed.
  2. 09-01-2025
    Last modifiedVulnerability information updated.

Description

Members of the <code>DEVMODEW</code> struct set by the printer device driver weren't being validated and could have resulted in invalid values which in turn would cause the browser to attempt out of bounds access to related variables.<br>*This bug only affects Firefox on Windows. Other operating systems are unaffected.*. This vulnerability affects Firefox < 110, Thunderbird < 102.8, and Firefox ESR < 102.8.

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

0.64%

Chance of exploitation in the next 30 days

Percentile

49%

Versus all other CVEs

30-day change

0.00 pp

From 0.64% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.64%

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

Mozilla3 products

1 vendor · 3 products

References

4 links