Mozilla Firefox up to 142 information disclosure

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.3$0-$5k0.00

Summaryinfo

A vulnerability was found in Mozilla Firefox up to 142. It has been classified as problematic. This affects an unknown part. This manipulation causes an unknown weakness. The identification of this vulnerability is CVE-2025-10536. There is no exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability classified as problematic was found in Mozilla Firefox up to 142. The CWE definition for the vulnerability is CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. The impact remains unknown. The summary by CVE is:

Information disclosure in the Networking: Cache component. This vulnerability affects Firefox < 143, Firefox ESR < 140.3, Thunderbird < 143, and Thunderbird < 140.3.

The advisory is shared at bugzilla.mozilla.org. This vulnerability is known as CVE-2025-10536 since 09/16/2025. 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 10/31/2025). MITRE ATT&CK project uses the attack technique T1592 for this issue.

The vulnerability scanner Nessus provides a plugin with the ID 265350 (RHEL 9 : firefox (RHSA-2025:16108)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 143 eliminates this vulnerability.

The vulnerability is also documented in the databases at Tenable (265350) and CERT Bund (WID-SEC-2025-2074). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Affected

  • Debian Linux
  • Amazon Linux 2
  • Red Hat Enterprise Linux
  • SUSE Linux
  • Oracle Linux
  • SUSE openSUSE
  • Mozilla Firefox
  • Mozilla Firefox ESR
  • 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: 5.5
VulDB Meta Temp Score: 5.3

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
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: Information disclosure
CWE: CWE-200 / CWE-284 / CWE-266
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Partially

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

0-DayUnlockUnlockUnlockUnlock
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Nessus ID: 265350
Nessus Name: RHEL 9 : firefox (RHSA-2025:16108)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Firefox 143

Timelineinfo

09/16/2025 Advisory disclosed
09/16/2025 +0 days CVE reserved
09/16/2025 +0 days VulDB entry created
10/31/2025 +45 days VulDB entry last update

Sourcesinfo

Vendor: mozilla.org
Product: mozilla.org

Advisory: bugzilla.mozilla.org
Status: Confirmed

CVE: CVE-2025-10536 (🔒)
GCVE (CVE): GCVE-0-2025-10536
GCVE (VulDB): GCVE-100-324469
CERT Bund: WID-SEC-2025-2074 - Mozilla Firefox, Firefox ESR und Thunderbird: Mehrere Schwachstellen

Entryinfo

Created: 09/16/2025 16:13
Updated: 10/31/2025 04:51
Changes: 09/16/2025 16:13 (53), 09/17/2025 02:39 (2), 09/18/2025 13:47 (2), 09/18/2025 16:14 (7), 09/19/2025 14:00 (1), 10/06/2025 12:21 (1), 10/31/2025 04:51 (1)
Complete: 🔍
Cache ID: 216::103

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Discussion

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