CVE-2026-7320

Name: CVE-2026-7320
Creator: NVD / NIST
Published: 2026-04-28T15:16:37.447+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 0.27%

Last modified Jun 17, 2026

CVE-2026-7320 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. Information disclosure due to incorrect boundary conditions in the Audio/Video component. This vulnerability was fixed in Firefox 150.0.1, Firefox ESR 140.10.1, Firefox ESR 115.35.1, Thunderbird 150.0.1, and Thunderbird 140.10.1.. EPSS estimates a 0.27% chance of exploitation in the next 30 days.

Description

Information disclosure due to incorrect boundary conditions in the Audio/Video component. This vulnerability was fixed in Firefox 150.0.1, Firefox ESR 140.10.1, Firefox ESR 115.35.1, Thunderbird 150.0.1, and Thunderbird 140.10.1.

Metrics

CVSS 3.1

7.5/10

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

EPSS Probability

0.27%

19.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-119

Affected Software

Vendor	Product	Versions
Mozilla	Firefox	< 115.35.1
Mozilla	Firefox	< 150.0.1
Mozilla	Firefox	>= 128.0, < 140.10.1
Mozilla	Thunderbird	< 140.10.1
Mozilla	Thunderbird	< 150.0.1

References

https://bugzilla.mozilla.org/show_bug.cgi?id=2027433Permissions Required
https://www.mozilla.org/security/advisories/mfsa2026-35/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2026-36/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2026-37/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2026-38/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2026-39/Vendor Advisory

Timeline

Published: Apr 28, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-7320?

How severe is CVE-2026-7320?

CVE-2026-7320 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 0.27% probability of exploitation in the next 30 days.

How do I fix CVE-2026-7320?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-7320?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST