--- title: "CVE-2024-49393\n | Ubuntu" description: Ubuntu is an open source software operating system that runs from the desktop, to the cloud, to all your internet connected things. url: https://ubuntu.com/security/CVE-2024-49393?format=md keywords: index, follow --- # CVE-2024-49393 Publication date 12 November 2024 Last updated 17 July 2025 --- Ubuntu priority **Low** [Why this priority?](https://ubuntu.com/security/CVE-2024-49393?format=md#priority-reason ) ## Cvss 3 Severity Score **6.5 · Medium** [Score breakdown](https://ubuntu.com/security/CVE-2024-49393?format=md#impact-score) Toggle side navigation ## Description In neomutt and mutt, the To and Cc email headers are not validated by cryptographic signing which allows an attacker that intercepts a message to change their value and include himself as a one of the recipients to compromise message confidentiality. [Read the notes from the security team](https://ubuntu.com/security/CVE-2024-49393?format=md#notes) ### Why is this CVE low priority? This is a longstanding limitation of PGP-encrypted mail and is an enhancement rather than an actual vulnerability. [Learn more about Ubuntu priority](https://ubuntu.com/security/cves/about#priority) ## Status Show unmaintained releases | Package | Ubuntu Release | Status | | --- | --- | --- | | mutt | 26.04 LTS resolute | Ignored no fix planned | | 25.10 questing | Ignored end of life, was ignored [no fix planned] | | 25.04 plucky | Ignored end of life, was ignored [no fix planned] | | 24.10 oracular | Ignored end of life, was ignored [no fix planned] | | 24.04 LTS noble | Ignored no fix planned | | 22.04 LTS jammy | Ignored no fix planned | | 20.04 LTS focal | Ignored end of standard support, was ignored [no fix planned] | | 18.04 LTS bionic | Ignored no fix planned | | 16.04 LTS xenial | Ignored end of ESM support, was ignored [no fix planned] | | neomutt | 26.04 LTS resolute | Not affected | | 25.10 questing | Not affected | | 25.04 plucky | Not affected | | 24.10 oracular | Ignored end of life, was needed | | 24.04 LTS noble | Fixed 20231103+dfsg1-1ubuntu0.1~esm1 Ubuntu Pro | | 22.04 LTS jammy | Fixed 20211029+dfsg1-1ubuntu0.1~esm1 Ubuntu Pro | | 20.04 LTS focal | Fixed 20191207+dfsg.1-1.1ubuntu0.1~esm1 Ubuntu Pro | | 18.04 LTS bionic | Ignored changes too intrusive | --- * [How can I get the fixes?](https://ubuntu.com/security/cves/about#security) * [What do statuses mean?](https://ubuntu.com/security/cves/about#statuses) ### Get expanded security coverage with Ubuntu Pro Reduce your average CVE exposure time from 98 days to 1 day with expanded CVE patching, ten-years security maintenance and optional support for the full stack of open-source applications. Free for personal use. [Get Ubuntu Pro](https://ubuntu.com/pro) [30-day free trial](https://ubuntu.com/pro/free-trial) ## Notes --- ### [john-breton](https://launchpad.net/~john-breton) Mutt project does not plan to address CVE-2024-49393, CVE-2024-49394, and CVE-2024-49395. Given the large structural changes to NeoMutt, a fix for bionic is likely infeasible and not worth the effort. ## Severity score breakdown CVSS version: CVSS v3.0 **Base score** 6.5 · Medium * Base metrics | Parameter | Value | | --- | --- | | Attack vector | Network | | Attack complexity | High | | Privileges required | None | | User interaction | None | | Scope | Unchanged | | Confidentiality impact | High | | Integrity impact | Low | | Availability impact | None | * Scores | Parameter | Value | | --- | --- | | Base score | 6.5 · Medium | | Exploitability score | - | | Impact score | - | **Vector:** CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N ## References * [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-49393) * [NVD](https://nvd.nist.gov/vuln/detail/CVE-2024-49393) * [Launchpad](https://launchpad.net/bugs/cve/CVE-2024-49393) * [Debian](https://security-tracker.debian.org/tracker/CVE-2024-49393) ### Related Ubuntu Security Notices (USN) + [USN-7204-1](https://usn.ubuntu.com/USN-7204-1) + NeoMutt vulnerabilities + 15 January 2025 ### Other references * * * * * *