Mozilla Foundation Security Advisory 2025-43
Security Vulnerabilities fixed in Firefox ESR 115.24
- Announced
- May 27, 2025
- Impact
- critical
- Products
- Firefox ESR
- Fixed in
-
- Firefox ESR 115.24
#CVE-2025-5283: Double-free in libvpx encoder
- Reporter
- Randell Jesup
- Impact
- critical
Description
A double-free could have occurred in vpx_codec_enc_init_multi after a failed allocation when initializing the encoder for WebRTC. This could have caused memory corruption and a potentially exploitable crash.
References
#CVE-2025-5263: Error handling for script execution was incorrectly isolated from web content
- Reporter
- terjanq
- Impact
- moderate
Description
Error handling for script execution was incorrectly isolated from web content, which could have allowed cross-origin leak attacks.
References
#CVE-2025-5264: Potential local code execution in “Copy as cURL” command
- Reporter
- Ameen Basha M K
- Impact
- moderate
Description
Due to insufficient escaping of the newline character in the “Copy as cURL” feature, an attacker could trick a user into using this command, potentially leading to local code execution on the user's system.
References
#CVE-2025-5265: Potential local code execution in “Copy as cURL” command
- Reporter
- Ameen Basha M K
- Impact
- moderate
Description
Due to insufficient escaping of the ampersand character in the “Copy as cURL” feature, an attacker could trick a user into using this command, potentially leading to local code execution on the user's system.
This bug only affects Firefox for Windows. Other versions of Firefox are unaffected.