Mozilla Firefox up to 110 JIT Code Remote Code Execution

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 identified as critical has been detected in Mozilla Firefox up to 110. The impacted element is an unknown function of the component JIT Code Handler. Performing a manipulation results in an unknown weakness. This vulnerability is cataloged as CVE-2023-25751. It is possible to initiate the attack remotely. There is no exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in Mozilla Firefox up to 110 (Web Browser). It has been classified as critical. This affects some unknown functionality of the component JIT Code Handler. This is going to have an impact on confidentiality, integrity, and availability.

The weakness was shared 03/14/2023 by Lukas Bernhard as Bug 1814899 as confirmed advisory (Website). The advisory is shared at bugzilla.mozilla.org. The advisory contains:

Sometimes, when invalidating JIT code while following an iterator, the newly generated code could be overwritten incorrectly. This could lead to a potentially exploitable crash.
This vulnerability is uniquely identified as CVE-2023-25751. 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 11/02/2025).

The vulnerability scanner Nessus provides a plugin with the ID 239802 (TencentOS Server 3: firefox (TSSA-2023:0043)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 111 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (239802) and EUVD (EUVD-2023-29658). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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: Remote Code Execution
CWE: Unknown
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: 239802
Nessus Name: TencentOS Server 3: firefox (TSSA-2023:0043)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Upgrade: Firefox 111

Timelineinfo

02/13/2023 🔍
03/14/2023 +29 days 🔍
03/14/2023 +0 days 🔍
04/14/2023 +31 days 🔍
11/02/2025 +933 days 🔍

Sourcesinfo

Vendor: mozilla.org
Product: mozilla.org

Advisory: Bug 1814899
Researcher: Lukas Bernhard
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2023-25751 (🔍)
GCVE (CVE): GCVE-0-2023-25751
GCVE (VulDB): GCVE-100-225969
EUVD: 🔍

Entryinfo

Created: 04/14/2023 16:17
Updated: 11/02/2025 11:55
Changes: 04/14/2023 16:17 (17), 04/14/2023 16:20 (29), 05/03/2023 09:33 (1), 06/20/2025 04:36 (16), 11/02/2025 11:55 (1)
Complete: 🔍
Cache ID: 216::103

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

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