CVE-2024-4769: debian debian_linux Insufficient Type Distinction
Vulnerability summary
CVE-2024-4769 is a medium (CVSS 5.9) Insufficient Type Distinction vulnerability in debian debian_linux. EPSS estimates a 0.37% chance of exploitation in the next 30 days, higher than 29.5% of scored vulnerabilities.
Advisory lineage
Upstream 0 · Downstream 32 · Related 10Timeline
- 14-05-2024PublishedVulnerability first disclosed.
- 13-02-2025Last modifiedVulnerability information updated.
Description
When importing resources using Web Workers, error messages would distinguish the difference between `application/javascript` responses and non-script responses. This could have been abused to learn information cross-origin. This vulnerability affects Firefox < 126, Firefox ESR < 115.11, and Thunderbird < 115.11.
CVSS metrics
5 scores · 5 sources · 1 version- OSV · UbuntuEcosystem advisory · calculated5.9MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
- OSV · DebianEcosystem advisory · calculated5.9MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
- OSV · ChainguardEcosystem advisory · calculated5.9MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
- NVDNIST5.9MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
EPSS trend
Probability
0.37%
Chance of exploitation in the next 30 days
Percentile
30%
Versus all other CVEs
30-day change
0.00 pp
From 0.37% on 21-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Ubuntu8 products
- firefox< 126.0+build2-0ubuntu0.20.04.1
- mozjs102All versions (No fix recorded)
- mozjs38All versions (No fix recorded)
- mozjs52All versions (No fix recorded)
- mozjs68All versions (No fix recorded)
Debian3 products
- firefox-esr< 115.11.0esr-1~deb12u1 | < 115.11.0esr-1
- thunderbird< 1:115.11.0-1~deb12u1 | < 1:115.11.0-1
- debian_linuxEOL10.0
Mozilla3 products
- firefox≥ unspecified, < 126 | < 115.11.0 | < 126.0
- firefox_esr≥ unspecified, < 115.11
- thunderbird≥ unspecified, < 115.11 | < 115.11.0
Chainguard1 product
- firefox-esr< 115.11.0-r0
4 vendors · 15 products
