6.5

CVE-2023-25741: mozilla firefox Observable Discrepancy

CVSS: 6.5v3.1MediumModified
AliasesUBUNTU-CVE-2023-25741
Published 02-06-2023Last modified 09-01-2025
Open JSON

Vulnerability summary

CVE-2023-25741 is a medium (CVSS 6.5) Observable Discrepancy vulnerability in mozilla firefox. EPSS estimates a 0.77% chance of exploitation in the next 30 days, higher than 54.7% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
36/100
0100
Medium · default modelHow is this calculated?
CVSS score
6.5/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.77%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1reference

Advisory lineage

Upstream 0 · Downstream 3 · Related 3
OPENSUSE-SU-2024:12753-1OPENSUSE-SU-2024:14572-1USN-5880-1

Timeline

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

Description

When dragging and dropping an image cross-origin, the image's size could potentially be leaked. This behavior was shipped in 109 and caused web compatibility problems as well as this security concern, so the behavior was disabled until further review. This vulnerability affects Firefox < 110.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.77%

Chance of exploitation in the next 30 days

Percentile

55%

Versus all other CVEs

30-day change

0.00 pp

From 0.77% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.77%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

1 found
  • referenceUnverified

    Exploit Reference (bugzilla.mozilla.org)

    Maturity: unknown

Weaknesses

CWE · root cause

Affected systems

Ubuntu6 products
  • firefox< 110.0+build3-0ubuntu0.18.04.1 | < 110.0+build3-0ubuntu0.20.04.1
  • mozjs38All versions (No fix recorded)
  • mozjs52All versions (No fix recorded)
  • mozjs68All versions (No fix recorded)
  • mozjs78All versions (No fix recorded)
Mozilla1 product
  • firefox≥ unspecified, < 110 | < 110.0

2 vendors · 7 products

References

8 links