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CVE-2025-10527

Published: Sep 16, 2025Updated: Apr 13, 2026 Sources: CVE List NVD BDUCWE-416
NVD MITRE
7.1CVSSHIGH
EPSS Score
0.3%
Top 83.1%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

Sandbox escape due to use-after-free in the Graphics: Canvas2D component. This vulnerability was fixed in Firefox 143, Firefox ESR 140.3, Thunderbird 143, and Thunderbird 140.3.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:RS:CC:LI:LA:L
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:RUser Interaction
Required
Scope
S:CScope
Changed
Impact
C:LConfidentiality
Low
I:LIntegrity
Low
A:LAvailability
Low
Open in CVSS calculator →

Weaknesses

CWE-416

Affected Products

FirefoxMozilla
On-premDesktop App
Consumer Software / browser
ThunderbirdMozilla
On-premDesktop App
Communications / email-server-client
firefoxmozilla
On-premDesktop App
Consumer Software / browser
thunderbirdmozilla
On-premDesktop App
Communications / email-server-client
Red Hat Enterprise LinuxRed Hat Inc.
On-premOS
Operating Systems / linux-distro
mozillaoss-projectUSConsumer Softwareaka mozilla corp.
red hat inc.commercialUSOperating Systemsaka red hat
and 8 more affected products View all →

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

Official Patch Available

MITRE ATT&CK

2 techniques
Initial Access
Privilege Escalation
View detailed technique mapping

References

https://bugzilla.mozilla.org/show_bug.cgi?id=1984825
bugzilla.mozilla.org
https://www.mozilla.org/security/advisories/mfsa2025-73/
mozilla.org
https://www.mozilla.org/security/advisories/mfsa2025-75/
mozilla.org
and 17 more references View all →

Timeline

Published
Sep 16, 2025
Last Updated
Apr 13, 2026

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