Mozilla Firefox 41 NTLM Request information disclosure

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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A vulnerability was found in Mozilla Firefox 41 (Web Browser). It has been classified as critical. Affected is an unknown part of the component NTLM Request Handler. The manipulation with an unknown input leads to a information disclosure vulnerability. CWE is classifying the issue as CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. This is going to have an impact on confidentiality, integrity, and availability.

The weakness was released 11/03/2015 as MFSA 2015-11 as confirmed security advisory (Website). The advisory is available at This vulnerability is traded as CVE-2015-4515 since 06/10/2015. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1592 by the MITRE ATT&CK project.

The vulnerability scanner Nessus provides a plugin with the ID 86955 (FreeBSD : mozilla -- multiple vulnerabilities (9d04936c-75f1-4a2c-9ade-4c1708be5df9)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family FreeBSD Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 168223 (OpenSuSE Security Update for MozillaFirefox, mozilla-nspr, (openSUSE-SU-2015:1942-1)).

Upgrading 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 X-Force (107791) and Tenable (86955). Entries connected to this vulnerability are available at 69222, 69223, 78498 and 79024.







CPE 2.3info

CPE 2.2info


VulDB Meta Base Score: 9.8
VulDB Meta Temp Score: 8.5

VulDB Base Score: 9.8
VulDB Temp Score: 8.5
VulDB Vector: 🔍
VulDB Reliability: 🔍



VulDB Base Score: 🔍
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Class: Information disclosure
CWE: CWE-200 / CWE-284 / CWE-266
ATT&CK: T1592

Local: No
Remote: Yes

Availability: 🔍
Status: Unproven

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EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍


Nessus ID: 86955
Nessus Name: FreeBSD : mozilla -- multiple vulnerabilities (9d04936c-75f1-4a2c-9ade-4c1708be5df9)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 803059
OpenVAS Name: Mozilla Firefox Multiple Vulnerabilities - Nov15 (Windows)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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


Recommended: Upgrade
Status: 🔍

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


06/10/2015 🔍
11/03/2015 +146 days 🔍
11/03/2015 +0 days 🔍
11/03/2015 +0 days 🔍
11/04/2015 +1 days 🔍
11/04/2015 +0 days 🔍
11/05/2015 +1 days 🔍
11/20/2015 +15 days 🔍
06/26/2022 +2410 days 🔍



Advisory: MFSA 2015-11
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2015-4515 (🔍)
X-Force: 107791 - Mozilla Firefox NTLM information disclosure
SecurityTracker: 1034069
Vulnerability Center: 54167 - Mozilla Firefox before 42 Remote Information Disclosure Vulnerability - CVE-2015-4515, Low

See also: 🔍


Created: 11/04/2015 11:09 AM
Updated: 06/26/2022 09:03 AM
Changes: 11/04/2015 11:09 AM (55), 03/10/2018 11:45 AM (19), 06/26/2022 09:03 AM (3)
Complete: 🔍


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