|CVSS Meta Temp Score|
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
|Current Exploit Price (≈)|
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
|CTI Interest Score|
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
A vulnerability classified as problematic was found in Mozilla Firefox, Firefox ESR and Thunderbird (Web Browser) (affected version unknown). Affected by this vulnerability is an unknown functionality of the component Location API. The manipulation with an unknown input leads to a denial of service vulnerability. The CWE definition for the vulnerability is CWE-835. As an impact it is known to affect availability. The summary by CVE is:
Using the Location API in a loop could have caused severe application hangs and crashes. This vulnerability affects Thunderbird < 91.4.0, Firefox ESR < 91.4.0, and Firefox < 95.
The weakness was disclosed 12/09/2021. It is possible to read the advisory at mozilla.org. This vulnerability is known as CVE-2021-43545 since 11/08/2021. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 12/12/2021). The attack technique deployed by this issue is T1499 according to MITRE ATT&CK.
Upgrading eliminates this vulnerability.
CVSSv3VulDB Meta Base Score: 4.3
VulDB Meta Temp Score: 4.1
VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔒
VulDB Reliability: 🔍
VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍
ExploitingClass: Denial of service
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒
Threat IntelligenceInterest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍
0-Day Time: 🔒
Timeline11/08/2021 CVE assigned
12/09/2021 +31 days Advisory disclosed
12/09/2021 +0 days VulDB entry created
12/12/2021 +3 days VulDB last update
CVE: CVE-2021-43545 (🔒)
EntryCreated: 12/09/2021 09:00 AM
Updated: 12/12/2021 02:32 AM
Changes: (1) source_cve_nvd_summary
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