CVE-2023-29531
CWE-787Published: June 19, 2023· Updated: Jun 17, 2026
Official Description
An attacker could have caused an out of bounds memory access using WebGL APIs, leading to memory corruption and a potentially exploitable crash.
*This bug only affects Firefox and Thunderbird for macOS. Other operating systems are unaffected.* This vulnerability affects Firefox < 112, Firefox ESR < 102.10, and Thunderbird < 102.10.
Risk Analysis
This vulnerability involves an out-of-bounds memory access in WebGL APIs that can lead to a crash or code execution on macOS systems. It is rated as critical with a 9.8 CVSS score and is not currently tracked in the KEV database.
This vulnerability is remotely exploitable with low complexity, but no public exploit is known.
Users of Firefox, Firefox ESR, and Thunderbird on macOS should update to the latest versions (112, 102.10, and 102.10 respectively) to apply the fix.
Technical Analysis
CVE-2023-29531 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.
A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.
From a weakness classification perspective (CWE-787): Out-of-bounds write vulnerabilities can lead to data corruption, crashes, or arbitrary code execution.
CVSS v3.1 Vector Breakdown
Affected Vendors & Products
Exploit & PoC Resources
Official Patches & Advisories
All References (8)
Quick Facts
Related CVEs (CWE-787)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2023-29531 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts