Mozilla Firefox/Thunderbird Browser Engine memory corruption

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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8.7$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, was found in Mozilla Firefox and Thunderbird. Affected is an unknown function of the component Browser Engine. The manipulation results in memory corruption. This vulnerability is known as CVE-2014-1562. No exploit is available. You should upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, was found in Mozilla Firefox and Thunderbird (Web Browser). Affected is some unknown functionality of the component Browser Engine. The manipulation with an unknown input leads to a memory corruption vulnerability. CWE is classifying the issue as CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. This is going to have an impact on confidentiality, integrity, and availability.

The weakness was published 09/02/2014 by Jan de Mooij as MFSA2014-67 as confirmed advisory (Website). The advisory is shared for download at mozilla.org. This vulnerability is traded as CVE-2014-1562 since 01/16/2014. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 11/25/2025).

The vulnerability scanner Nessus provides a plugin with the ID 77519 (RHEL 5 / 6 / 7 : firefox (RHSA-2014:1144)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Red Hat Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 122593 (Red Hat Update for Xulrunner Firefox (RHSA-2014:1144)).

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 (95654), Tenable (77519), SecurityFocus (BID 69519†), Secunia (SA60148†) and SecurityTracker (ID 1030793†). Further details are available at bugzilla.mozilla.org. Similar entries are available at VDB-67441, VDB-67442, VDB-67443 and VDB-67444. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Affected

  • Mozilla Firefox 31.0
  • Mozilla Firefox ESR 24.7
  • Mozilla Thunderbird 24.7/31.0

Productinfo

Type

Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 10.0
VulDB Meta Temp Score: 8.7

VulDB Base Score: 10.0
VulDB Temp Score: 8.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Unproven

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 77519
Nessus Name: RHEL 5 / 6 / 7 : firefox (RHSA-2014:1144)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 703018
OpenVAS Name: Debian Security Advisory DSA 3018-1 (iceweasel - security update)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Timelineinfo

01/16/2014 🔍
09/02/2014 +229 days 🔍
09/02/2014 +0 days 🔍
09/02/2014 +0 days 🔍
09/02/2014 +0 days 🔍
09/03/2014 +1 days 🔍
09/03/2014 +0 days 🔍
09/03/2014 +0 days 🔍
09/03/2014 +0 days 🔍
09/03/2014 +0 days 🔍
09/04/2014 +1 days 🔍
11/25/2025 +4100 days 🔍

Sourcesinfo

Vendor: mozilla.org
Product: mozilla.org

Advisory: MFSA2014-67
Researcher: Jan de Mooij
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2014-1562 (🔍)
GCVE (CVE): GCVE-0-2014-1562
GCVE (VulDB): GCVE-100-67440

OVAL: 🔍
IAVM: 🔍

X-Force: 95654 - Mozilla Firefox andThunderbird code execution, High Risk
SecurityFocus: 69519 - Mozilla Firefox/Thunderbird CVE-2014-1562 Multiple Memory Corruption Vulnerabilities
Secunia: 60148 - Mozilla Firefox ESR / Thunderbird Multiple Vulnerabilities, Highly Critical
SecurityTracker: 1030793 - Mozilla Firefox Multiple Flaws Let Remote Users Execute Arbitrary Code and Obtain Potentially Sensitive Information
Vulnerability Center: 45982 - Mozilla Firefox, Firefox ESR and Thunderbird Remote DoS and Code Execution via Unknown Vectors - CVE-2014-1562, Critical

Misc.: 🔍
See also: 🔍

Entryinfo

Created: 09/03/2014 10:29
Updated: 11/25/2025 21:40
Changes: 09/03/2014 10:29 (90), 06/05/2017 10:47 (3), 02/15/2022 08:24 (2), 02/15/2022 08:25 (1), 11/25/2025 21:40 (15)
Complete: 🔍
Cache ID: 216:DA1:103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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