SecuriTricks - CVE-2025-5268

Description

Memory safety bugs present in Firefox 138, Thunderbird 138, Firefox ESR 128.10, and Thunderbird 128.10. 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 < 139 and Firefox ESR < 128.11.

Product(s) Impacted

Vendor	Product	Versions
Mozilla	Firefox Thunderbird Firefox Esr	<139 138 <128.11

Weaknesses

Common security weaknesses mapped to this vulnerability.

CWE-77

Improper Neutralization of Special Elements used in a Command ('Command Injection')

The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component.

*CPE(s)

Affected systems and software identified for this CVE.

Type	Vendor	Product	Version	Update	Edition	Language	Software Edition	Target Software	Target Hardware	Other Information
a	mozilla	firefox	<139	/	/	/	/	/	/	/
a	mozilla	thunderbird	138	/	/	/	/	/	/	/
a	mozilla	firefox_esr	<128.11	/	/	/	/	/	/	/

References

https://bugzilla.mozilla.org/buglist.cgi?bug_id=1950136%2C1958121%2C1960499%2C1962634

https://www.mozilla.org/security/advisories/mfsa2025-42/

https://www.mozilla.org/security/advisories/mfsa2025-44/

CVSS Score

6.5 / 10

CVSS Data - 3.1

Attack Vector: NETWORK
Attack Complexity: LOW
Privileges Required: NONE
Scope: UNCHANGED
Confidentiality Impact: LOW
Integrity Impact: LOW
Availability Impact: NONE

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

View Vector String

Timeline

Published: May 27, 2025, 1:15 p.m.
Last Modified: May 28, 2025, 3:01 p.m.

Status : Undergoing Analysis

CVE has been recently published to the CVE List and has been received by the NVD.

More info

Source

security@mozilla.org

CVE-2025-5268