CVE-2000-0727: xpdf PDF viewer client earlier than 0.91 does not properly launch a web browser for embedded URL's, which allo

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HIGH 7.6DOWNGRADE

CVE-2000-0727 is a high-severity flaw (CVSS 7.6) affecting xpdf. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

xpdf PDF viewer client earlier than 0.91 does not properly launch a web browser for embedded URL's, which allows an attacker to execute arbitrary commands via a URL that contains shell metacharacters.

Why this priority

High severity

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	7.6 (High)
EPSS exploit chance	2.6% (top 15%)
CISA exploited list	No
Published	2000-10-20
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: xpdf

Last updated 2026-06-16 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2000-10-20 04:00 UTCPublished CVE record published
2026-06-16 21:52 UTCUpdated Record last modified

xpdf xpdf DOWNGRADE

Affected: 0.90

Fixed in: no fixed release known

Safe to downgrade to: a release before 0.90

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 0.90 (Debian / Ubuntu)

apt-cache madison xpdf sudo apt install xpdf=<VERSION_BEFORE_0.90> sudo apt-mark hold xpdf

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list xpdf sudo dnf downgrade xpdf-<VERSION_BEFORE_0.90> sudo dnf versionlock add xpdf

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

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-2000-0727?

xpdf: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2000-0727 being exploited?

CVE-2000-0727 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-2000-0727 affect?

CVE-2000-0727 affects xpdf. Severity is high (CVSS 7.6). xpdf PDF viewer client earlier than 0.91 does not properly launch a web browser for embedded URL's, which allows an attacker to execute arbitrary commands via a URL that contains shell metacharacters.

How urgent is CVE-2000-0727?

Priority 48/100. High severity

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References

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