NeoMutt Header Field Bcc information disclosure

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.
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CTI Interest Score
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4.5$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic has been found in NeoMutt. This issue affects some unknown processing of the component Header Field Handler. Performing a manipulation of the argument Bcc results in information disclosure. This vulnerability is reported as CVE-2024-49395. The attack is possible to be carried out remotely. No exploit exists.

Detailsinfo

A vulnerability was found in NeoMutt (version now known). It has been classified as problematic. This affects some unknown processing of the component Header Field Handler. The manipulation of the argument Bcc with an unknown input leads to a information disclosure vulnerability. CWE is classifying the issue as CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. This is going to have an impact on confidentiality. The summary by CVE is:

In mutt and neomutt, PGP encryption does not use the --hidden-recipient mode which may leak the Bcc email header field by inferring from the recipients info.

It is possible to read the advisory at bugzilla.redhat.com. This vulnerability is uniquely identified as CVE-2024-49395 since 10/14/2024. The exploitability is told to be difficult. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1592 according to MITRE ATT&CK.

The vulnerability scanner Nessus provides a plugin with the ID 230673 (Linux Distros Unpatched Vulnerability : CVE-2024-49395), which helps to determine the existence of the flaw in a target environment.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at Tenable (230673) and EUVD (EUVD-2024-43422). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

Name

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.5
VulDB Meta Temp Score: 4.5

VulDB Base Score: 3.7
VulDB Temp Score: 3.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 5.3
CNA Vector: 🔍

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: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 230673
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2024-49395

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

10/14/2024 🔍
11/12/2024 +29 days 🔍
11/12/2024 +0 days 🔍
07/05/2025 +235 days 🔍

Sourcesinfo

Advisory: bugzilla.redhat.com
Status: Not defined

CVE: CVE-2024-49395 (🔍)
GCVE (CVE): GCVE-0-2024-49395
GCVE (VulDB): GCVE-100-283947
EUVD: 🔍

Entryinfo

Created: 11/12/2024 02:38
Updated: 07/05/2025 12:07
Changes: 11/12/2024 02:38 (51), 11/12/2024 04:32 (12), 11/12/2024 13:22 (1), 03/06/2025 16:39 (2), 07/05/2025 12:07 (1)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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