🛡️ CVE-2026-16360 on Ubuntu — mozjs102

⚪ Unknown ✅ No Known Exploit OSV

N/A

CVSS Score

0 Low4 Medium7 High9 Critical10

Description

Memory safety bugs present in Firefox ESR 115.37, Firefox ESR 140.12 and Firefox 152. 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 153, Firefox ESR 115.38, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13.

Distribution advisory

This page covers CVE-2026-16360 as tracked by Ubuntu, for the package mozjs102. No fixed version has been recorded for this distribution yet.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs no privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality high, integrity high, availability high.

Weakness class

UBUNTU-CVE-2026-16360 is classified as CWE-119: Improper Restriction of Operations within Memory Buffer Bounds. A read or write is performed without confirming it stays inside the allocated buffer, corrupting adjacent memory.

Affected software

UBUNTU-CVE-2026-16360 is recorded against 8 packages.

mozjs102
mozjs115
mozjs38
mozjs52
mozjs68
mozjs78
mozjs91
thunderbird

Timeline and source

Published on 21 July 2026 and last revised on 29 July 2026. No public exploit is currently recorded for this entry. Record sourced from OSV.

References

ubuntu.com (Report)
www.cve.org (Report)
www.mozilla.org (Report)
www.mozilla.org (Report)

Details

Severity Unknown

CVSS Score N/A

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

CWE N/A

Public Exploit ✅ No

Source OSV

Published 2026-07-21

Updated 2026-08-11

Modified 2026-07-29

Fix URL N/A

Affected Packages

Software	From version	Fixed in
mozjs102	—	—
mozjs115	—	—
mozjs38	—	—
mozjs52	—	—
mozjs68	—	—
mozjs78	—	—
mozjs91	—	—
thunderbird	—	—

References

REPORT https://ubuntu.com/security/CVE-2026-16360

REPORT https://www.cve.org/CVERecord?id=CVE-2026-16360

REPORT https://www.mozilla.org/en-US/security/advisories/mfsa2026-68/#CVE-2026-16360

REPORT https://www.mozilla.org/en-US/security/advisories/mfsa2026-70/#CVE-2026-16360

🔗 NVD 🔗 Mitre

Similar Threats

Exploit Protection

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