CVE-2024-30203: In Emacs before 29.3, Gnus treats inline MIME contents as trusted.

Q: How do I fix CVE-2024-30203?

emacs: upgrade to 29.3; org mode: upgrade to 9.6.23; debian linux: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Q: Is CVE-2024-30203 being exploited?

CVE-2024-30203 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2024-30203 affect?

CVE-2024-30203 affects emacs, org mode, debian linux. Severity is medium (CVSS 5.5). In Emacs before 29.3, Gnus treats inline MIME contents as trusted.

Q: How urgent is CVE-2024-30203?

Priority 36/100. On your watchlist

Routine

MEDIUM 5.5WATCHLISTUPGRADEUPGRADEMITIGATE

CVE-2024-30203 is a medium-severity flaw (CVSS 5.5) affecting emacs, org mode, debian linux. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

In Emacs before 29.3, Gnus treats inline MIME contents as trusted.

Why this priority

On your watchlist

A fixed release or distro patch exists.

Risk facts

CVSS score	5.5 (Medium)
Attack vector	Local
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.6% (top 52%)
CISA exploited list	No
Published	2024-03-25
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: debian · gnu

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2024-03-25 15:15 UTCPublished CVE record published
2026-06-17 07:26 UTCUpdated Record last modified

gnu emacs UPGRADE

Affected: < 29.3

Fixed in: 29.3

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy emacs || rpm -q emacs || emacs --version

2. UPGRADE to 29.3 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade emacs

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade emacs

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

gnu org mode UPGRADE

Affected: < 9.6.23

Fixed in: 9.6.23

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy org-mode || rpm -q org-mode || org-mode --version

2. UPGRADE to 9.6.23 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade org-mode

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade org-mode

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

debian debian linux MITIGATE

Affected: 10.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 10.0

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2024-30203?

emacs: upgrade to 29.3; org mode: upgrade to 9.6.23; debian linux: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2024-30203 being exploited?

CVE-2024-30203 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2024-30203 affect?

CVE-2024-30203 affects emacs, org mode, debian linux. Severity is medium (CVSS 5.5). In Emacs before 29.3, Gnus treats inline MIME contents as trusted.

How urgent is CVE-2024-30203?

Priority 36/100. On your watchlist

Software pages

Debian vulnerabilities

Related CVEs

CVE-2026-6861 MEDIUM 6.1 UPGRADE A flaw was found in GNU Emacs
CVE-2024-53920 HIGH 7.8 UPGRADE In elisp-mode.el in GNU Emacs before 30.1, a user who chooses to invoke elisp-completion-at-point (for code co
CVE-2024-39331 CRITICAL 9.8 UPGRADE In Emacs before 29.4, org-link-expand-abbrev in lisp/ol.el expands a %(...) link abbrev even when it specifies
CVE-2024-30205 HIGH 7.1 UPGRADE UPGRADE In Emacs before 29.3, Org mode considers contents of remote files to be trusted
CVE-2024-30204 LOW 2.8 UPGRADE UPGRADE In Emacs before 29.3, LaTeX preview is enabled by default for e-mail attachments.

References

← Back to latest CVEs