TI-2024-05282 Aliases CVE-2024-5687 GHSA-4c8g-9w4h-h6xm

Improper access control in Mozilla Firefox

LOW 30CWE-284Published 2024-06-11 · Updated 2024-08-01

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Impact type: Security bypass
Confidentiality · integrity · availability: Low · None · None
Fix status: Fixed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-284.

Summary

If a specific sequence of actions is performed when opening a new tab, the triggering principal associated with the new tab may have been incorrect. The triggering principal is used to calculate many values, including the `Referer` and `Sec-*` headers, meaning there is the potential for incorrect security checks within the browser in addition to incorrect or misleading information sent to remote websites. *This bug only affects Firefox for Android. Other versions of Firefox are unaffected.* This vulnerability affects Firefox < 127.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00411 35th percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by NVD

Fix Fixed Firefox (Mozilla): 127

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: Yes
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Mozilla	Firefox	before 127	127	Patch available	CNA

Firefox VendorMozilla Affected before 127 Fixed in 127 Patch available CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:mozilla:firefox::::::::	before 127.0	Vulnerable	Mozilla

cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* Versions before 127.0 Vulnerable ·Mozilla

Remediation

Fix · CNA Firefox (Mozilla) Fixed in 127

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

Release · 2024-06-11
Mozilla Firefox 127
15 records Highest priority Priority MEDIUM 5 MEDIUM, 10 LOW
Other records, highest priority first
- TI-2024-05296 Out-of-bounds write in Mozilla FirefoxPriority MEDIUM 50
- TI-2024-05294 In violation of spec, cookie prefixes such as `__Secure` were being ignored if they were…Priority MEDIUM 50
- TI-2024-05290 Out-of-bounds write in Mozilla FirefoxPriority MEDIUM 50
Show all 15 records →

Timeline

2026-10-02 Threatist record created from CVE-2024-5687
2026-10-03 Alias added: GHSA-4c8g-9w4h-h6xm

References

Exploit 1

https://bugzilla.mozilla.org/show_bug.cgi?id=1889066

Advisory 1

https://www.mozilla.org/security/advisories/mfsa2024-25/

TI-2024-08981 Use after free in Mozilla Firefox KEVCVSS 3.1CRITICAL 9.8
TI-2022-09832 Use after free in Mozilla Firefox KEVCVSS 3.1CRITICAL 9.6
TI-2019-08769 Improper input validation in Mozilla Firefox ESR KEVCVSS 3.1CRITICAL 10.0
TI-2010-03577 Mozilla Firefox 3.5.x through 3.5.14 and 3.6.x through 3.6.11, Thunderbird 3.1.6 before… KEVCVSS 3.1CRITICAL 9.8
TI-2023-04799 Out-of-bounds write in Google Chrome KEVCVSS 3.1HIGH 8.8
TI-2023-04477 Out-of-bounds write in Google Chrome KEVCVSS 3.1HIGH 8.8

See all 3444 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences