CVE-2025-1937 — Improper Handling of Overlap Between Protected Memory Ranges in Mozilla Firefox
Severity
7.5HIGHNVD
EPSS
0.2%
top 56.10%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
Timeline
PublishedMar 4
Latest updateNov 12
Description
Memory safety bugs present in Firefox 135, Thunderbird 135, Firefox ESR 115.20, Firefox ESR 128.7, and Thunderbird 128.7. 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 was fixed in Firefox 136, Firefox ESR 115.21, Firefox ESR 128.8, Thunderbird 136, and Thunderbird 128.8.
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:HExploitability: 1.6 | Impact: 5.9
Affected Packages4 packages
🔴Vulnerability Details
5OSV▶
net: usb: lan78xx: Fix lost EEPROM read timeout error(-ETIMEDOUT) in lan78xx_read_raw_eeprom↗2025-11-12
GHSA▶
GHSA-5427-6cg5-37h6: Memory safety bugs present in Firefox 135, Thunderbird 135, Firefox ESR 115↗2025-03-04
OSV▶
CVE-2025-1937: Memory safety bugs present in Firefox 135, Thunderbird 135, Firefox ESR 115↗2025-03-04
CVEList▶
Memory safety bugs fixed in Firefox 136, Thunderbird 136, Firefox ESR 115.21, Firefox ESR 128.8, and Thunderbird 128.8↗2025-03-04
📋Vendor Advisories
10Red Hat▶
kernel: net: usb: lan78xx: Fix lost EEPROM read timeout error(-ETIMEDOUT) in lan78xx_read_raw_eeprom↗2025-11-12
Red Hat▶
firefox: thunderbird: Memory safety bugs fixed in Firefox 136, Thunderbird 136, Firefox ESR 115.21, Firefox ESR 128.8, and Thunderbird 128.8↗2025-03-04
Debian▶
CVE-2025-1937: firefox - Memory safety bugs present in Firefox 135, Thunderbird 135, Firefox ESR 115.20, ...↗2025