Mozilla Firefox up to 144 WebGPU improper check or handling of exceptional conditions

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.0$0-$5k0.00

Summaryinfo

A vulnerability classified as critical has been found in Mozilla Firefox up to 144. The impacted element is an unknown function of the component WebGPU. The manipulation leads to Remote Code Execution. This vulnerability is traded as CVE-2025-13021. It is possible to initiate the attack remotely. There is no exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Mozilla Firefox up to 144. It has been rated as critical. This issue affects some unknown processing of the component WebGPU. The manipulation with an unknown input leads to a remote code execution vulnerability. Using CWE to declare the problem leads to CWE-703. The product does not properly anticipate or handle exceptional conditions that rarely occur during normal operation of the product. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Incorrect boundary conditions in the Graphics: WebGPU component. This vulnerability affects Firefox < 145 and Thunderbird < 145.

The advisory is shared at bugzilla.mozilla.org. The identification of this vulnerability is CVE-2025-13021 since 11/11/2025. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 01/07/2026).

The vulnerability scanner Nessus provides a plugin with the ID 275011 (Linux Distros Unpatched Vulnerability : CVE-2025-13021), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 145 eliminates this vulnerability.

The vulnerability is also documented in the databases at Tenable (275011), EUVD (EUVD-2025-84333) and CERT Bund (WID-SEC-2025-2566). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Affected

  • Debian Linux
  • Amazon Linux 2
  • Red Hat Enterprise Linux
  • SUSE Linux
  • Oracle Linux
  • SUSE openSUSE
  • RESF Rocky Linux
  • IGEL OS
  • Mozilla Firefox ESR
  • Mozilla Firefox
  • Mozilla Thunderbird

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 6.0

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Improper check or handling of exceptional conditions
CWE: CWE-703
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 275011
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2025-13021

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Firefox 145

Timelineinfo

11/11/2025 Advisory disclosed
11/11/2025 +0 days CVE reserved
11/11/2025 +0 days VulDB entry created
01/07/2026 +57 days VulDB entry last update

Sourcesinfo

Vendor: mozilla.org
Product: mozilla.org

Advisory: bugzilla.mozilla.org
Status: Confirmed

CVE: CVE-2025-13021 (🔒)
GCVE (CVE): GCVE-0-2025-13021
GCVE (VulDB): GCVE-100-332009
EUVD: 🔒
CERT Bund: WID-SEC-2025-2566 - Mozilla Firefox und Firefox ESR: Mehrere Schwachstellen

Entryinfo

Created: 11/11/2025 19:55
Updated: 01/07/2026 04:53
Changes: 11/11/2025 19:55 (54), 11/12/2025 16:09 (2), 11/12/2025 16:30 (7), 11/13/2025 17:52 (1), 11/14/2025 08:38 (1), 11/17/2025 21:56 (1), 11/20/2025 05:59 (1), 11/21/2025 18:08 (1), 11/25/2025 17:24 (1), 12/01/2025 10:38 (1), 01/07/2026 04:53 (1)
Complete: 🔍
Cache ID: 216:CEB:103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Discussion

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