7.5

CVE-2024-10463: mozilla firefox Observable Discrepancy

CVSS: 7.5v3.1HighModified
AliasesUBUNTU-CVE-2024-10463DEBIAN-CVE-2024-10463CGA-jrp6-3wxx-943r
Published 29-10-2024Last modified 03-11-2025
Open JSON

Vulnerability summary

CVE-2024-10463 is a high (CVSS 7.5) Observable Discrepancy vulnerability in mozilla firefox. EPSS estimates a 0.73% chance of exploitation in the next 30 days, higher than 53.5% of scored vulnerabilities.

Overall risk
30/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.5/10
010
High · v3.1 (CVE.org)
EPSS score
0.73%
0%100%
Low · +0.04 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 33 · Related 11
DLA-3943-1DLA-3944-1DSA-5801-1DSA-5803-1MGASA-2024-0349MGASA-2024-0350

Timeline

  1. 29-10-2024
    PublishedVulnerability first disclosed.
  2. 03-11-2025
    Last modifiedVulnerability information updated.

Description

Video frames could have been leaked between origins in some situations. This vulnerability affects Firefox < 132, Firefox ESR < 128.4, Firefox ESR < 115.17, Thunderbird < 128.4, and Thunderbird < 132.

CVSS metrics

6 scores · 6 sources · 1 version

EPSS trend

Probability

0.73%

Chance of exploitation in the next 30 days

Percentile

54%

Versus all other CVEs

30-day change

+0.04 pp

From 0.69% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.73%

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

Ubuntu9 products
  • firefox< 132.0+build1-0ubuntu0.20.04.1
  • mozjs102All versions (No fix recorded)
  • mozjs115All versions (No fix recorded)
  • mozjs38All versions (No fix recorded)
  • mozjs52All versions (No fix recorded)
Mozilla3 products
  • firefox≥ unspecified, < 132 | < 115.17.0 | < 132.0 | ≥ 128.1.0, < 128.4.0
  • firefox_esr≥ unspecified, < 128.4 | ≥ unspecified, < 115.17
  • thunderbird≥ unspecified, < 128.4 | ≥ unspecified, < 132 | < 128.4.0 | ≥ 129.0, < 132.0
Chainguard2 products
  • firefox< 132.0-r0
  • firefox-esr< 128.4.0-r0
Debian2 products
  • firefox-esr< 128.4.0esr-1~deb12u1 | < 128.4.0esr-1
  • thunderbird< 1:128.4.0esr-1~deb12u1 | < 1:128.4.0esr-1
Wolfi1 product
  • firefox< 132.0-r0

5 vendors · 17 products

References

12 links
Show all 12 references