CVE-2024-8387

CRITICAL EPSS 43.5%
Published Sep 3, 20241y ago · Modified Jun 17, 20261w ago
9.8 CVSS 3.1
Critical
Find Similar
Published Sep 3, 2024 1y ago
Last Modified Jun 17, 2026 1w ago

Description

Memory safety bugs present in Firefox 129, Firefox ESR 128.1, and Thunderbird 128.1. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 130, Firefox ESR < 128.2, and Thunderbird < 128.2.

CVSS Details

Base Score
9.8
Exploitability
3.9
Impact
5.9
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability High

Threat Intelligence

EPSS Exploit Probability
43.5% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 2

CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer Memory Safety
CWE-787 Out-of-bounds Write Memory Safety

Affected Products 3

VendorProductVersionRange
mozillafirefox129.0any
mozillafirefox_esr128.1any
mozillathunderbird128.1any

References 4

  • bugzilla.mozilla.org https://bugzilla.mozilla.org/buglist.cgi?bug_id=1857607%2C1911858%2C1914009
    Broken Link
  • mozilla.org https://www.mozilla.org/security/advisories/mfsa2024-39/
    Vendor Advisory
  • mozilla.org https://www.mozilla.org/security/advisories/mfsa2024-40/
    Vendor Advisory
  • mozilla.org https://www.mozilla.org/security/advisories/mfsa2024-43/

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.