VDB-248394 · CVE-2023-50761 · DLA 3698-1

Mozilla Thunderbird up to 115.5 SMIME comparison

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.
3.6	$0-$5k	0.00

Summaryinfo

A vulnerability was found in Mozilla Thunderbird up to 115.5. It has been declared as problematic. This vulnerability affects unknown code of the component SMIME Handler. The manipulation results in comparison. This vulnerability is cataloged as CVE-2023-50761. The attack may be launched remotely. There is no exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, was found in Mozilla Thunderbird up to 115.5 (Mail Client Software). Affected is some unknown processing of the component SMIME Handler. The manipulation with an unknown input leads to a comparison vulnerability. CWE is classifying the issue as CWE-697. The product compares two entities in a security-relevant context, but the comparison is incorrect, which may lead to resultant weaknesses. This is going to have an impact on integrity. CVE summarizes:

The signature of a digitally signed S/MIME email message may optionally specify the signature creation date and time. If present, Thunderbird did not compare the signature creation date with the message date and time, and displayed a valid signature despite a date or time mismatch. This could be used to give recipients the impression that a message was sent at a different date or time. This vulnerability affects Thunderbird < 115.6.

The weakness was shared 12/19/2023. The advisory is available at mozilla.org. This vulnerability is traded as CVE-2023-50761 since 12/12/2023. Successful exploitation requires user interaction by the victim. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 01/23/2025).

The vulnerability scanner Nessus provides a plugin with the ID 214465 (Debian dla-3698 : thunderbird - security update), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 115.6 eliminates this vulnerability. The upgrade is hosted for download at mozilla.org.

The vulnerability is also documented in the vulnerability database at Tenable (214465). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

Mail Client Software

Vendor

Mozilla

Name

Thunderbird

Version

License

open-source

Website

Vendor: https://www.mozilla.org/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.7
VulDB Meta Temp Score: 3.6

VulDB Base Score: 3.1
VulDB Temp Score: 3.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 4.3
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
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💳	💳	💳	💳	💳	💳
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

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

Exploitinginfo

Class: Comparison
CWE: CWE-697
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Nessus ID: 214465
Nessus Name: Debian dla-3698 : thunderbird - security update

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Thunderbird 115.6

Timelineinfo

12/12/2023 🔍
12/19/2023 +7 days 🔍
12/19/2023 +0 days 🔍
04/21/2025 +488 days 🔍

Sourcesinfo

Vendor: mozilla.org

Advisory: DLA 3698-1
Status: Confirmed

CVE: CVE-2023-50761 (🔍)
GCVE (CVE): GCVE-0-2023-50761
GCVE (VulDB): GCVE-100-248394

Entryinfo

Created: 12/19/2023 16:34
Updated: 04/21/2025 00:43
Changes: 12/19/2023 16:34 (41), 01/12/2024 18:23 (1), 01/12/2024 18:30 (11), 01/23/2025 05:04 (17), 04/21/2025 00:43 (3)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.