Skip to main content

Mondoo

Vulnerability Management
Technology
Services

Solutions

Financial Services
Manufacturing
Healthcare

Resources

Blog
Vulnerability Database
Documentation
GitHub

Company

About
Careers
Partners
Contact

Legal

Privacy
Terms
Imprint

© 2026 Mondoo, Inc.

Log in Get Assessment

CVE-2026-12298 | Mondoo Vulnerability Intelligence

Vulnerability IntelligenceCVE-2026-12298

CVE-2026-12298

MEDIUM5.4

Memory safety bug fixed in Firefox 152

Published Jun 16, 2026

Modified 1 weeks ago

Details

Memory safety bug fixed in Firefox 152. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12.

References

https://bugzilla.mozilla.org/show_bug.cgi?id=2041981

https://www.cve.org/CVERecord?id=CVE-2026-12298

https://www.mozilla.org/security/advisories/mfsa2026-57/

https://www.mozilla.org/security/advisories/mfsa2026-58/

https://www.mozilla.org/security/advisories/mfsa2026-60/

https://www.mozilla.org/security/advisories/mfsa2026-61/

CVSS Analysis

CVSS v3.1

5.4

Exploitability

Attack Vector

NetworkAV:N

Attack Complexity

LowAC:L

Privileges Required

NonePR:N

User Interaction

RequiredUI:R

Scope

Scope

UnchangedS:U

Impact

Confidentiality

LowC:L

Integrity

LowI:L

Availability

NoneA:N

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

Ecosystems

Timeline

PublishedJun 16, 2026

ModifiedJun 18, 2026