Mozilla Firefox up to 129.x Property Name Lookup type confusion

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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8.5$5k-$25k0.00

Summaryinfo

A vulnerability classified as critical was found in Mozilla Firefox up to 129.x. This affects an unknown part of the component Property Name Lookup. Executing a manipulation can lead to type confusion. This vulnerability appears as CVE-2024-8381. The attack may be performed from remote. There is no available exploit. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in Mozilla Firefox up to 129.x. It has been declared as critical. This vulnerability affects an unknown function of the component Property Name Lookup. The manipulation with an unknown input leads to a type confusion vulnerability. The CWE definition for the vulnerability is CWE-843. The product allocates or initializes a resource such as a pointer, object, or variable using one type, but it later accesses that resource using a type that is incompatible with the original type. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

A potentially exploitable type confusion could be triggered when looking up a property name on an object being used as the `with` environment. This vulnerability affects Firefox < 130, Firefox ESR < 128.2, and Firefox ESR < 115.15.

The advisory is shared for download at bugzilla.mozilla.org. This vulnerability was named CVE-2024-8381 since 09/03/2024. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $5k-$25k (estimation calculated on 11/05/2025).

The vulnerability scanner Nessus provides a plugin with the ID 207937 (Rocky Linux 9 : firefox (RLSA-2024:6681)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 130 eliminates this vulnerability.

The vulnerability is also documented in the databases at Tenable (207937) and EUVD (EUVD-2024-49137). Once again VulDB remains the best source for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.6
VulDB Meta Temp Score: 8.5

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CNA Base Score: 9.8
CNA Vector (mozilla): 🔍

CVSSv2info

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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Type confusion
CWE: CWE-843
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: 207937
Nessus Name: Rocky Linux 9 : firefox (RLSA-2024:6681)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Firefox 130

Timelineinfo

09/03/2024 🔍
09/03/2024 +0 days 🔍
09/03/2024 +0 days 🔍
11/05/2025 +428 days 🔍

Sourcesinfo

Vendor: mozilla.org
Product: mozilla.org

Advisory: bugzilla.mozilla.org
Status: Confirmed

CVE: CVE-2024-8381 (🔍)
GCVE (CVE): GCVE-0-2024-8381
GCVE (VulDB): GCVE-100-276388
EUVD: 🔍

Entryinfo

Created: 09/03/2024 15:06
Updated: 11/05/2025 14:13
Changes: 09/03/2024 15:06 (55), 09/04/2024 09:33 (11), 09/04/2024 12:33 (1), 09/05/2024 05:07 (11), 10/01/2024 08:08 (2), 03/11/2025 12:41 (3), 11/05/2025 14:13 (1)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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