CVE-2024-6611

moderate-risk

Published 2024-07-09

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

Do I need to act?

0.59% chance of exploitation

EPSS score — low exploit probability

Not on CISA KEV list

No confirmed active exploitation reported to CISA

Patch status unknown

Check vendor advisories for fix availability and mitigation guidance

CVSS 9.8/10 Critical

NETWORK / LOW complexity

Affected Products (2)

Firefox

Thunderbird

Affected Vendors

Mozilla

References (6)

Issue Tracking https://bugzilla.mozilla.org/show_bug.cgi?id=1844827

Vendor Advisory https://www.mozilla.org/security/advisories/mfsa2024-29/

Vendor Advisory https://www.mozilla.org/security/advisories/mfsa2024-32/

Issue Tracking https://bugzilla.mozilla.org/show_bug.cgi?id=1844827

Vendor Advisory https://www.mozilla.org/security/advisories/mfsa2024-29/

Vendor Advisory https://www.mozilla.org/security/advisories/mfsa2024-32/

/ 100

moderate-risk

Severity 32/34 · Critical

Exploitability 2/34 · Minimal

Exposure 7/34 · Low