CVE-2023-36664: Artifex Ghostscript before 10.01.2 mishandles permission validation for pipe devices (with the %pipe% prefix o

Q: How do I fix CVE-2023-36664?

ghostscript: upgrade to 10.01.2; debian linux: mitigate or apply the listed mitigation; fedora: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Q: Is CVE-2023-36664 being exploited?

CVE-2023-36664 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-2023-36664 affect?

CVE-2023-36664 affects ghostscript, debian linux, fedora. Severity is high (CVSS 7.8). Artifex Ghostscript before 10.01.2 mishandles permission validation for pipe devices (with the %pipe% prefix or the | pipe character prefix).

Q: How urgent is CVE-2023-36664?

Priority 55/100. High severity; EPSS top 10%: very likely to be exploited; On your watchlist

This month

HIGH 7.8WATCHLISTUPGRADEMITIGATEMITIGATE

CVE-2023-36664 is a high-severity flaw (CVSS 7.8) affecting ghostscript, debian linux, fedora. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Artifex Ghostscript before 10.01.2 mishandles permission validation for pipe devices (with the %pipe% prefix or the | pipe character prefix).

Why this priority

High severity
EPSS top 10%: very likely to be exploited
On your watchlist

A fixed release or distro patch exists.

Risk facts

CVSS score	7.8 (High)
Attack vector	Local
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	3.9% (top 10%)
CISA exploited list	No
Weakness	CWE-552
Published	2023-06-25
Last modified	2026-08-28

Publisher (CNA): MITRE · Vendor: artifex · debian · fedoraproject

Last updated 2026-08-28 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2023-06-25 22:15 UTCPublished CVE record published
2026-08-28 16:16 UTCUpdated Record last modified

artifex ghostscript UPGRADE

Affected: < 10.01.2

Fixed in: 10.01.2

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to 10.01.2 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade ghostscript

Note

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

debian debian linux MITIGATE

Affected: 11.0 · 12.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 11.0

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.

fedoraproject fedora MITIGATE

Affected: 37 · 38

Fixed in: no fixed release known

Safe to downgrade to: a release before 37

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-2023-36664?

ghostscript: upgrade to 10.01.2; debian linux: mitigate or apply the listed mitigation; fedora: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2023-36664 being exploited?

CVE-2023-36664 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-2023-36664 affect?

CVE-2023-36664 affects ghostscript, debian linux, fedora. Severity is high (CVSS 7.8). Artifex Ghostscript before 10.01.2 mishandles permission validation for pipe devices (with the %pipe% prefix or the | pipe character prefix).

How urgent is CVE-2023-36664?

Priority 55/100. High severity; EPSS top 10%: very likely to be exploited; On your watchlist

Software pages

Debian vulnerabilities · Ghostscript vulnerabilities

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References

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