Vulnerability in Mozilla Firefox
CVE-2024-6611
A nested iframe, triggering a cross-site navigation, could send SameSite=Strict or Lax cookies. This vulnerability affects Firefox < 128 and Thunderbird < 128.
EPSS: 0.007 (47.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Mozilla Firefox — versions unspecified
- Mozilla Thunderbird — versions unspecified
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security@mozilla.org (Issue Tracking)
- security@mozilla.org (Vendor Advisory)
- security@mozilla.org (Vendor Advisory)
Frequently asked questions
- What is CVE-2024-6611?
- CVE-2024-6611 is a critical-severity vulnerability in Mozilla Firefox, classified under CWE-1275. CVSS score: 9.8/10. Published 2024-07-09.
- How severe is CVE-2024-6611?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2024-6611 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.