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Vulnerability record · CVE-2024-3302 · published 16 April 2024

CVE-2024-3302: Mozilla firefox allocation without limits vulnerability

Mozilla · Firefox

There was no limit to the number of HTTP/2 CONTINUATION frames that would be processed. A server could abuse this to create an Out of Memory condition in the browser. This vulnerability affects Firefox < 125, Firefox ESR < 115.10, and Thunderbird < 115.10.

3.7 CVSS 3.1 Low EPSS 0.77% · top 46.3% CWE-770 · Allocation without limits
3.7CVSS 3.1 base score
0.77%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
14References
17 Jun 2026Last modified by NVD

Description

There was no limit to the number of HTTP/2 CONTINUATION frames that would be processed. A server could abuse this to create an Out of Memory condition in the browser. This vulnerability affects Firefox < 125, Firefox ESR < 115.10, and Thunderbird < 115.10.

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

Affected products

2 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://bugzilla.mozilla.org/show_bug.cgi?id=1881183 Issue Tracking
https://kb.cert.org/vuls/id/421644 US Government Resource
https://lists.debian.org/debian-lts-announce/2024/04/msg00012.html Mailing List
https://lists.debian.org/debian-lts-announce/2024/04/msg00013.html Mailing List
https://www.mozilla.org/security/advisories/mfsa2024-18/ Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2024-19/ Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2024-20/ Vendor Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1881183 Issue Tracking
https://kb.cert.org/vuls/id/421644 US Government Resource
https://lists.debian.org/debian-lts-announce/2024/04/msg00012.html Mailing List
https://lists.debian.org/debian-lts-announce/2024/04/msg00013.html Mailing List
https://www.mozilla.org/security/advisories/mfsa2024-18/ Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2024-19/ Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2024-20/ Vendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2024-3302), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.