CVE-2005-2354: Nvu 0.99+1.0pre uses an old copy of Mozilla XPCOM which can result in multiple security issues.

This week

CRITICAL 9.8REMOTEWATCHLISTDOWNGRADE

CVE-2005-2354 is a critical-severity flaw (CVSS 9.8) affecting nvu. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Nvu 0.99+1.0pre uses an old copy of Mozilla XPCOM which can result in multiple security issues.

Why this priority

Critical severity
Public exploit reference
Remotely exploitable, no login, no user action
On your watchlist

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

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	1.9% (top 21%)
CISA exploited list	No
Published	2019-11-05
Last modified	2026-06-16

Publisher (CNA): Debian GNU/Linux · Vendor: nvu

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

Am I affected?

Timeline

2019-11-05 20:15 UTCPublished CVE record published
2026-06-16 22:14 UTCUpdated Record last modified

nvu nvu DOWNGRADE

Affected: 0.99

Fixed in: no fixed release known

Safe to downgrade to: a release before 0.99

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 0.99 (Debian / Ubuntu)

apt-cache madison nvu sudo apt install nvu=<VERSION_BEFORE_0.99> sudo apt-mark hold nvu

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

dnf --showduplicates list nvu sudo dnf downgrade nvu-<VERSION_BEFORE_0.99> sudo dnf versionlock add nvu

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-2005-2354?

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

Is CVE-2005-2354 being exploited?

CVE-2005-2354 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-2005-2354 affect?

CVE-2005-2354 affects nvu. Severity is critical (CVSS 9.8). Nvu 0.99+1.0pre uses an old copy of Mozilla XPCOM which can result in multiple security issues.

How urgent is CVE-2005-2354?

Priority 69/100. Critical severity; Public exploit reference; Remotely exploitable, no login, no user action; On your watchlist

References

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