CVE-2025-4092
published 2025-04-29CVE-2025-4092: Memory safety bugs present in Firefox 137 and Thunderbird 137. Some of these bugs showed evidence of memory corruption and we presume that with enough effort…
PriorityP433medium6.5CVSS 3.1
AVNACLPRNUINSUCLILAN
EPSS
0.27%
19.3th percentile
Memory safety bugs present in Firefox 137 and Thunderbird 137. 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 138 and Thunderbird 138.
Affected
5 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | firefox | < firefox 138.0-1 (sid) | firefox 138.0-1 (sid) |
| mozilla | firefox | < 138.0 | 138.0 |
| mozilla | firefox | — | — |
| mozilla | thunderbird | < 138.0 | 138.0 |
| mozilla | thunderbird | >= 0 < 1:140.7.1+build1-0ubuntu0.22.04.1 | 1:140.7.1+build1-0ubuntu0.22.04.1 |
CVSS provenance
nvdv3.16.5MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
osv6.5MEDIUM
vendor_debian6.5MEDIUM
vendor_redhat6.5MEDIUM
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Ubuntu
Thunderbird vulnerabilities
vendor_ubuntu·2026-02-02
CVE-2025-8031 Thunderbird vulnerabilities
Title: Thunderbird vulnerabilities
Summary: Several security issues were fixed in Thunderbird.
Multiple security issues were discovered in Thunderbird. If a user were
tricked into opening a specially crafted website in a browsing context,
an attacker could potentially exploit these to cause a denial of service,
obtain sensitive information, bypass security restrictions, cross-site
tracing, or execute arbitrary code.
Instructions: In general, a standard system update will make all the necessary changes.
Red Hat
firefox: thunderbird: Memory safety bugs fixed in Firefox 138 and Thunderbird 138
vendor_redhat·2025-04-29·CVSS 6.5
CVE-2025-4092 [MEDIUM] CWE-120 firefox: thunderbird: Memory safety bugs fixed in Firefox 138 and Thunderbird 138
firefox: thunderbird: Memory safety bugs fixed in Firefox 138 and Thunderbird 138
Memory safety bugs present in Firefox 137 and Thunderbird 137. 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 < 138 and Thunderbird < 138.
A flaw was found in Firefox. The Mozilla Foundation's Security Advisory describes the following issue: Memory safety bugs present in Firefox 137 and Thunderbird 137. 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.
Statement: Red Hat Product Security rates the severity of this flaw as determined by the Mozilla Foundat
Debian
CVE-2025-4092: firefox - Memory safety bugs present in Firefox 137 and Thunderbird 137. Some of these bug...
vendor_debian·2025·CVSS 6.5
CVE-2025-4092 [MEDIUM] CVE-2025-4092: firefox - Memory safety bugs present in Firefox 137 and Thunderbird 137. Some of these bug...
Memory safety bugs present in Firefox 137 and Thunderbird 137. 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 < 138 and Thunderbird < 138.
Scope: local
sid: resolved (fixed in 138.0-1)
Mozilla
Mozilla Foundation Security Advisory 2025-28: CVE-2025-4092
vendor_mozilla·CVSS 6.5
CVE-2025-4092 [MEDIUM] Mozilla Foundation Security Advisory 2025-28: CVE-2025-4092
Mozilla Foundation Security Advisory 2025-28
CVE: CVE-2025-4092
Product: Firefox
Impact: high
Fixed in: Firefox 138
Mozilla
Mozilla Foundation Security Advisory 2025-31: CVE-2025-4092
vendor_mozilla·CVSS 6.5
CVE-2025-4092 [MEDIUM] Mozilla Foundation Security Advisory 2025-31: CVE-2025-4092
Mozilla Foundation Security Advisory 2025-31
CVE: CVE-2025-4092
Product: Thunderbird
Impact: high
Fixed in: Thunderbird 138
OSV
CVE-2025-4092: Memory safety bugs present in Firefox 137 and Thunderbird 137
osv·2025-04-29·CVSS 6.5
CVE-2025-4092 [MEDIUM] CVE-2025-4092: Memory safety bugs present in Firefox 137 and Thunderbird 137
Memory safety bugs present in Firefox 137 and Thunderbird 137. 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 < 138 and Thunderbird < 138.
GHSA
GHSA-jv2r-997x-hv7m: Memory safety bugs present in Firefox 137 and Thunderbird 137
ghsa_unreviewed·2025-04-29
CVE-2025-4092 [MEDIUM] CWE-119 GHSA-jv2r-997x-hv7m: Memory safety bugs present in Firefox 137 and Thunderbird 137
Memory safety bugs present in Firefox 137 and Thunderbird 137. 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 < 138 and Thunderbird < 138.
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2025-04-29
Published