9.8

CVE-2024-6611: mozilla firefox

CVSS: 9.8v3.1CriticalAnalyzed
AliasesUBUNTU-CVE-2024-6611CGA-398p-mrrh-h8p6CGA-x54v-6hhq-v74q
Published 09-07-2024Last modified 30-10-2025
Open JSON

Vulnerability summary

CVE-2024-6611 is a critical (CVSS 9.8) vulnerability in mozilla firefox. EPSS estimates a 0.66% chance of exploitation in the next 30 days, higher than 50.7% of scored vulnerabilities.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
9.8/10
010
Critical · v3.1 (CVE.org)
EPSS score
0.66%
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 6 · Related 8
OPENSUSE-SU-2024:14197-1OPENSUSE-SU-2024:14572-1SUSE-SU-2024:2876-1SUSE-SU-2024:3003-1SUSE-SU-2024:3507-1USN-6890-1

Timeline

  1. 09-07-2024
    PublishedVulnerability first disclosed.
  2. 30-10-2025
    Last modifiedVulnerability information updated.

Description

A nested iframe, triggering a cross-site navigation, could send SameSite=Strict or Lax cookies. This vulnerability affects Firefox < 128 and Thunderbird < 128.

CVSS metrics

5 scores · 5 sources · 1 version

EPSS trend

Probability

0.66%

Chance of exploitation in the next 30 days

Percentile

51%

Versus all other CVEs

30-day change

0.00 pp

From 0.66% on 20-09-2026

20-09-202620-10-2026
EPSS score
0.66%

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

Ubuntu7 products
  • firefox< 128.0+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)
Chainguard2 products
  • firefox< 128.0-r0
  • firefox-esr< 128-r0
Mozilla2 products
Wolfi1 product
  • firefox< 128.0-r0

4 vendors · 12 products

References

7 links