4.7

CVE-2024-5691: mozilla firefox Protection Mechanism Failure

CVSS: 4.7v3.1MediumModified
AliasesUBUNTU-CVE-2024-5691DEBIAN-CVE-2024-5691CGA-99px-5w9w-g3cf
Published 11-06-2024Last modified 19-03-2025

Vulnerability summary

CVE-2024-5691 is a medium (CVSS 4.7) Protection Mechanism Failure vulnerability in mozilla firefox. EPSS estimates a 0.65% chance of exploitation in the next 30 days, higher than 50.6% of scored vulnerabilities.

Overall risk
19/100
0100
Low · default modelHow is this calculated?
CVSS score
4.7/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.65%
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 34 · Related 13

Timeline

  1. 11-06-2024
    PublishedVulnerability first disclosed.
  2. 19-03-2025
    Last modifiedVulnerability information updated.

Description

By tricking the browser with a `X-Frame-Options` header, a sandboxed iframe could have presented a button that, if clicked by a user, would bypass restrictions to open a new window. This vulnerability affects Firefox < 127, Firefox ESR < 115.12, and Thunderbird < 115.12.

CVSS metrics

6 scores · 6 sources · 1 version

EPSS trend

Probability

0.65%

Chance of exploitation in the next 30 days

Percentile

51%

Versus all other CVEs

30-day change

0.00 pp

From 0.65% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.65%

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

Ubuntu8 products
  • firefox< 127.0.2+build1-0ubuntu0.20.04.1
  • mozjs102All versions (No fix recorded)
  • mozjs38All versions (No fix recorded)
  • mozjs52All versions (No fix recorded)
  • mozjs68All versions (No fix recorded)
Mozilla3 products
Chainguard2 products
  • firefox< 127.0.2-r0
  • firefox-esr< 115.12.0-r0
Debian2 products
  • firefox-esr< 115.12.0esr-1~deb12u1 | < 115.12.0esr-1
  • thunderbird< 1:115.12.0-1~deb12u1 | < 1:115.12.0-1
Wolfi1 product
  • firefox< 127.0.2-r0

5 vendors · 16 products

References

11 links
Show all 11 references