Mozilla Firefox up to 122 Cursor ui layer

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.1$0-$5k0.00

Summaryinfo

A vulnerability classified as critical has been found in Mozilla Firefox up to 122. This impacts an unknown function of the component Cursor Handler. This manipulation causes ui layer. This vulnerability is tracked as CVE-2024-1549. The attack is possible to be carried out remotely. No exploit exists. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical was found in Mozilla Firefox up to 122 (Web Browser). Affected by this vulnerability is some unknown processing of the component Cursor Handler. The manipulation with an unknown input leads to a ui layer vulnerability. The CWE definition for the vulnerability is CWE-1021. The web application does not restrict or incorrectly restricts frame objects or UI layers that belong to another application or domain, which can lead to user confusion about which interface the user is interacting with. As an impact it is known to affect integrity. The summary by CVE is:

If a website set a large custom cursor, portions of the cursor could have overlapped with the permission dialog, potentially resulting in user confusion and unexpected granted permissions. This vulnerability affects Firefox < 123 and Firefox ESR < 115.8.

The weakness was disclosed 02/20/2024. The advisory is shared at mozilla.org. This vulnerability is known as CVE-2024-1549 since 02/15/2024. It demands that the victim is doing some kind of user interaction. 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 06/18/2025).

The vulnerability scanner Nessus provides a plugin with the ID 239893 (TencentOS Server 2: thunderbird (TSSA-2024:0085)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 123 eliminates this vulnerability. The upgrade is hosted for download at mozilla.org.

The vulnerability is also documented in the vulnerability database at Tenable (239893). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

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Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.2
VulDB Meta Temp Score: 5.1

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 6.1
CNA Vector: 🔍

CVSSv2info

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

Exploitinginfo

Class: Ui layer
CWE: CWE-1021
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: 239893
Nessus Name: TencentOS Server 2: thunderbird (TSSA-2024:0085)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Firefox 123

Timelineinfo

02/15/2024 🔍
02/20/2024 +5 days 🔍
02/20/2024 +0 days 🔍
06/18/2025 +484 days 🔍

Sourcesinfo

Vendor: mozilla.org
Product: mozilla.org

Advisory: DLA 3747-1
Status: Confirmed

CVE: CVE-2024-1549 (🔍)
GCVE (CVE): GCVE-0-2024-1549
GCVE (VulDB): GCVE-100-254197

Entryinfo

Created: 02/20/2024 16:04
Updated: 06/18/2025 23:35
Changes: 02/20/2024 16:04 (42), 03/08/2024 15:02 (1), 11/01/2024 18:44 (27), 04/19/2025 14:30 (3), 06/18/2025 23:35 (2)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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