CVE-2005-0926: Buffer overflow in Sylpheed before 1.0.4 allows remote attackers to cause a denial of service (crash) and poss

Routine

MEDIUM 5.1DOWNGRADE

CVE-2005-0926 is a medium-severity flaw (CVSS 5.1) affecting sylpheed. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Buffer overflow in Sylpheed before 1.0.4 allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via attachments with MIME-encoded file names.

Why this priority

No elevated risk signals yet

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

Risk facts

CVSS score	5.1 (Medium)
EPSS exploit chance	1.8% (top 21%)
CISA exploited list	No
Published	2005-05-02
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: sylpheed

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

Am I affected?

Timeline

2005-05-02 04:00 UTCPublished CVE record published
2026-06-16 22:12 UTCUpdated Record last modified

sylpheed sylpheed DOWNGRADE

Affected: 0.8.11 · 0.9.4 · 0.9.5 · 0.9.6 · 0.9.7 · 0.9.8 · 0.9.9 · 0.9.10

Fixed in: no fixed release known

Safe to downgrade to: a release before 0.8.11

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 0.8.11 (Debian / Ubuntu)

apt-cache madison sylpheed sudo apt install sylpheed=<VERSION_BEFORE_0.8.11> sudo apt-mark hold sylpheed

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

dnf --showduplicates list sylpheed sudo dnf downgrade sylpheed-<VERSION_BEFORE_0.8.11> sudo dnf versionlock add sylpheed

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-2005-0926?

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

Is CVE-2005-0926 being exploited?

CVE-2005-0926 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-2005-0926 affect?

CVE-2005-0926 affects sylpheed. Severity is medium (CVSS 5.1). Buffer overflow in Sylpheed before 1.0.4 allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via attachments with MIME-encoded file names.

How urgent is CVE-2005-0926?

Priority 38/100. No elevated risk signals yet.

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References

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