CVE-2023-25752

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.

CVSS 3.1

6.5CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N

EPSS

0.6% chance of exploitation in the next 30 days; higher than 48% of CVEs (scores of 2026-10-25)

Published

2023-06-02

Modified

2026-10-24

Record from

the NVD, synced 2026-10-24

Affected

• mozilla:firefox
• mozilla:firefox_esr
• mozilla:thunderbird

References

• https://bugzilla.mozilla.org/show_bug.cgi?id=1811627
• https://www.mozilla.org/security/advisories/mfsa2023-09/
• https://www.mozilla.org/security/advisories/mfsa2023-10/
• https://www.mozilla.org/security/advisories/mfsa2023-11/
• https://bugzilla.mozilla.org/show_bug.cgi?id=1811627

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