CVE-2023-25752

Name: CVE-2023-25752
Creator: NVD / NIST
Published: 2023-06-02T17:15:11.99+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.5/10EPSS 0.61%

Last modified Jun 17, 2026

CVE-2023-25752 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. When accessing throttled streams, the count of available bytes needed to be checked in the calling function to be within bounds. This may have lead future code to be incorrect and vulnerable. EPSS estimates a 0.61% chance of exploitation in the next 30 days.

Description

When accessing throttled streams, the count of available bytes needed to be checked in the calling function to be within bounds. This may have lead future code to be incorrect and vulnerable. This vulnerability affects Firefox < 111, Firefox ESR < 102.9, and Thunderbird < 102.9.

Metrics

CVSS 3.1

6.5/10

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

EPSS Probability

0.61%

44.6th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Mozilla	Firefox	< 111.0
Mozilla	Firefox Esr	< 102.9
Mozilla	Thunderbird	< 102.9

References

https://bugzilla.mozilla.org/show_bug.cgi?id=1811627Issue Tracking, Permissions Required, Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2023-09/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2023-10/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2023-11/Vendor Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1811627Issue Tracking, Permissions Required, Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2023-09/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2023-10/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2023-11/Vendor Advisory

Timeline

Published: Jun 2, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-25752?

How severe is CVE-2023-25752?

CVE-2023-25752 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 0.61% probability of exploitation in the next 30 days.

How do I fix CVE-2023-25752?

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-2023-25752?

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

Scan your code now

Source: NVD / NIST