Home/CVE/A type confusion bug in WebAssembly could be leveraged by an attacker to potentially achieve code execution. This vulner
CVE

CVE-2024-7520

A type confusion bug in WebAssembly could be leveraged by an attacker to potentially achieve code execution. This vulner

A type confusion bug in WebAssembly could be leveraged by an attacker to potentially achieve code execution. This vulnerability affects Firefox < 129, Firefox ESR < 128.1, and Thunderbird < 128.1.

HIGH · CVSS 8.8 EPSS 0.00655
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules1 YARA rules0
⬡

Weakness Classification

CWE-843Access of Resource Using Incompatible Type ('Type Confusion')
CWE-94Improper Control of Generation of Code ('Code Injection')
▤

Affected Products & Versions

3
mozilla firefox< 129.0
mozilla firefox esr< 128.1.0
mozilla thunderbird< 128.1.0
◈

Sigma Hunt Rules

1
Exact rules name this CVE ID. Product rules name an affected product in their title. Related rules cover techniques used by actors who exploited this CVE. Showing the most relevant matches; the complete related set is on the full drill-down.
producthighSQLite Firefox Profile Data DB Access
▣

Scoring & Timeline

8.8
HIGH · CVSS v3.1 · security@mozilla.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD06 Aug 2024 · 01:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
no
Technical impact
total
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
⚑

Vendor Advisories

25
msrcCVE-2024-7520
suse-csafopenSUSE-SU-2024:14572-1
suse-csafSUSE-SU-2024:3507-1
suse-csafSUSE-SU-2024:3003-1
usnUSN-6966-1
🔗

References & Sources

4
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://bugzilla.mozilla.org/show_bug.cgi?id=1903041Issue TrackingPermissions Required
https://www.mozilla.org/security/advisories/mfsa2024-33/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2024-35/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2024-37/Vendor Advisory
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