CVE-2025-49710
published 2025-06-11CVE-2025-49710: An integer overflow was present in `OrderedHashTable` used by the JavaScript engine. This vulnerability was fixed in Firefox 139.0.4.
PriorityP345critical9.8CVSS 3.1
AVNACLPRNUINSUCHIHAH
EPSS
0.65%
47.1th percentile
An integer overflow was present in `OrderedHashTable` used by the JavaScript engine. This vulnerability was fixed in Firefox 139.0.4.
Affected
3 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | firefox | < firefox 139.0.4-1 (sid) | firefox 139.0.4-1 (sid) |
| mozilla | firefox | < 139.0.4 | 139.0.4 |
| mozilla | firefox | — | — |
CVSS provenance
nvdv3.19.8CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
osv9.8CRITICAL
vendor_debian9.8CRITICAL
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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
ghsa_unreviewed·2025-06-11
CVE-2025-49710 [CRITICAL] CWE-190 GHSA-64mp-f6ff-c8jm: An integer overflow was present in `OrderedHashTable` used by the JavaScript engine This vulnerability affects Firefox < 139
An integer overflow was present in `OrderedHashTable` used by the JavaScript engine This vulnerability affects Firefox < 139.0.4.
OSV
CVE-2025-49710: An integer overflow was present in `OrderedHashTable` used by the JavaScript engine This vulnerability affects Firefox < 139
osv·2025-06-11·CVSS 9.8
CVE-2025-49710 [CRITICAL] CVE-2025-49710: An integer overflow was present in `OrderedHashTable` used by the JavaScript engine This vulnerability affects Firefox < 139
An integer overflow was present in `OrderedHashTable` used by the JavaScript engine This vulnerability affects Firefox < 139.0.4.
Debian
CVE-2025-49710: firefox - An integer overflow was present in `OrderedHashTable` used by the JavaScript eng...
vendor_debian·2025·CVSS 9.8
CVE-2025-49710 [CRITICAL] CVE-2025-49710: firefox - An integer overflow was present in `OrderedHashTable` used by the JavaScript eng...
An integer overflow was present in `OrderedHashTable` used by the JavaScript engine This vulnerability affects Firefox < 139.0.4.
Scope: local
sid: resolved (fixed in 139.0.4-1)
Mozilla
Mozilla Foundation Security Advisory 2025-47: CVE-2025-49710
vendor_mozilla·CVSS 9.8
CVE-2025-49710 [CRITICAL] Mozilla Foundation Security Advisory 2025-47: CVE-2025-49710
Mozilla Foundation Security Advisory 2025-47
CVE: CVE-2025-49710
Product: Firefox
Impact: high
Fixed in: Firefox 139.0.4
No detection rules found.
No public exploits indexed.
Wiz
What is a buffer overflow? Modern attacks and cloud security | Wiz
blogs_wiz·2025-10-30
What is a buffer overflow? Modern attacks and cloud security | Wiz
## What is a buffer overflow?
A buffer overflow is a well-known type of memory corruption vulnerability. When a program tries to write more data into a buffer (a temporary storage space) than it was allocated, the excess data “overflows,” overwriting adjacent memory locations.
This isn't a new flaw; buffer overflows have been around for decades. But they remain a dangerous and relevant threat, even in modern applications and systems. In the cloud, buffer overflow attacks can target services like web APIs or applications running in containers.
Two out-of-bounds access vulnerabilities CWE Top 25 Most Dangerous Software Weaknesses list for 2024: CWE-787 (Out-of-bounds Write) and CWE-125 (Out-of-bounds Read). Not every vulnerability is actually exploited in the wild, of course. But a recent
Wiz
What is a buffer overflow? Modern attacks and cloud security | Wiz
blogs_wiz·2025-10-30
What is a buffer overflow? Modern attacks and cloud security | Wiz
## What is a buffer overflow?
A buffer overflow is a well-known type of memory corruption vulnerability. When a program tries to write more data into a buffer (a temporary storage space) than it was allocated, the excess data “overflows,” overwriting adjacent memory locations.
This isn't a new flaw; buffer overflows have been around for decades. But they remain a dangerous and relevant threat, even in modern applications and systems. In the cloud, buffer overflow attacks can target services like web APIs or applications running in containers.
Two out-of-bounds access vulnerabilities CWE Top 25 Most Dangerous Software Weaknesses list for 2024: CWE-787 (Out-of-bounds Write) and CWE-125 (Out-of-bounds Read). Not every vulnerability is actually exploited in the wild, of course. But a recent
2025-06-11
Published