CVE-2025-49710 — Integer Overflow or Wraparound in Mozilla Firefox

CWE-190 — Integer Overflow or Wraparound6 documents6 sources
Severity
9.8CRITICALNVD
EPSS
0.4%
top 38.69%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
1
Mozilla Firefox
Timeline
PublishedJun 11

Description

An integer overflow was present in `OrderedHashTable` used by the JavaScript engine. This vulnerability was fixed in Firefox 139.0.4.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HExploitability: 3.9 | Impact: 5.9

Affected Packages1 packages

▶NVDmozilla/firefox< 139.0.4

🔴Vulnerability Details

3
CVEList
Integer overflow in OrderedHashTable↗2025-06-11
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GHSA
GHSA-64mp-f6ff-c8jm: An integer overflow was present in `OrderedHashTable` used by the JavaScript engine This vulnerability affects Firefox < 139↗2025-06-11
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OSV
CVE-2025-49710: An integer overflow was present in `OrderedHashTable` used by the JavaScript engine This vulnerability affects Firefox < 139↗2025-06-11
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📋Vendor Advisories

2
Debian
CVE-2025-49710: firefox - An integer overflow was present in `OrderedHashTable` used by the JavaScript eng...↗2025
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Mozilla
Mozilla Foundation Security Advisory 2025-47: CVE-2025-49710↗
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CVE-2025-49710 — Integer Overflow or Wraparound | cvebase