Mozilla Firefox ESR up to 115.23.0 JavaScript out-of-bounds write

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.0$5k-$25k0.00

Summaryinfo

A vulnerability described as critical has been identified in Mozilla Firefox ESR up to 115.23.0. This affects an unknown function of the component JavaScript Handler. Such manipulation leads to out-of-bounds write. This vulnerability is uniquely identified as CVE-2025-4918. The attack can be launched remotely. No exploit exists. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in Mozilla Firefox ESR up to 115.23.0. It has been rated as critical. Affected by this issue is an unknown code block of the component JavaScript Handler. The manipulation with an unknown input leads to a out-of-bounds write vulnerability. Using CWE to declare the problem leads to CWE-787. The product writes data past the end, or before the beginning, of the intended buffer. Impacted is confidentiality, integrity, and availability. CVE summarizes:

An attacker was able to perform an out-of-bounds read or write on a JavaScript `Promise` object. This vulnerability affects Firefox ESR < 115.23.1.

The advisory is available at bugzilla.mozilla.org. This vulnerability is handled as CVE-2025-4918 since 05/17/2025. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. Successful exploitation requires user interaction by the victim. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $5k-$25k at the moment (estimation calculated on 09/23/2025).

The vulnerability scanner Nessus provides a plugin with the ID 236893 (Mozilla Firefox ESR < 115.23.1), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 115.23.1 eliminates this vulnerability.

The vulnerability is also documented in the databases at Tenable (236893), EUVD (EUVD-2025-15599) and CERT Bund (WID-SEC-2025-1850). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Affected

  • Xerox FreeFlow Print Server

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: Out-of-bounds write
CWE: CWE-787 / CWE-119
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: 236893
Nessus Name: Mozilla Firefox ESR < 115.23.1

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Firefox ESR 115.23.1

Timelineinfo

05/17/2025 🔍
05/18/2025 +1 days 🔍
05/18/2025 +0 days 🔍
09/23/2025 +128 days 🔍

Sourcesinfo

Vendor: mozilla.org

Advisory: bugzilla.mozilla.org
Status: Confirmed

CVE: CVE-2025-4918 (🔍)
GCVE (CVE): GCVE-0-2025-4918
GCVE (VulDB): GCVE-100-309482
EUVD: 🔍
CERT Bund: WID-SEC-2025-1850 - Xerox FreeFlow Print Server: Mehrere Schwachstellen erm&ouml;glichen nicht spezifizierten Angriff

Entryinfo

Created: 05/18/2025 08:27
Updated: 09/23/2025 05:10
Changes: 05/18/2025 08:27 (56), 05/18/2025 12:05 (2), 05/18/2025 23:26 (1), 08/16/2025 21:03 (7), 09/23/2025 05:10 (1)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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