CVE-2005-0814: Unknown vulnerability in lshd in Lysator LSH 1.x and 2.x before 2.0.1 allows remote attackers to cause a denia

Routine

MEDIUM 5.0DOWNGRADE

CVE-2005-0814 is a medium-severity flaw (CVSS 5.0) affecting lsh. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Unknown vulnerability in lshd in Lysator LSH 1.x and 2.x before 2.0.1 allows remote attackers to cause a denial of service via unknown vectors.

Why this priority

No elevated risk signals yet

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

Risk facts

CVSS score	5.0 (Medium)
EPSS exploit chance	1.7% (top 23%)
CISA exploited list	No
Published	2005-05-02
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: lysator

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 22:11 UTCUpdated Record last modified

lysator lsh DOWNGRADE

Affected: 1.0 · 1.0.1 · 1.0.2 · 1.0.3 · 1.0.4 · 1.0.5 · 1.0.6 · 1.0.7

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.0

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 1.0 (Debian / Ubuntu)

apt-cache madison lsh sudo apt install lsh=<VERSION_BEFORE_1.0> sudo apt-mark hold lsh

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

dnf --showduplicates list lsh sudo dnf downgrade lsh-<VERSION_BEFORE_1.0> sudo dnf versionlock add lsh

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-2005-0814?

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

Is CVE-2005-0814 being exploited?

CVE-2005-0814 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-2005-0814 affect?

CVE-2005-0814 affects lsh. Severity is medium (CVSS 5.0). Unknown vulnerability in lshd in Lysator LSH 1.x and 2.x before 2.0.1 allows remote attackers to cause a denial of service via unknown vectors.

How urgent is CVE-2005-0814?

Priority 37/100. No elevated risk signals yet.

Related CVEs

CVE-2006-0353 LOW 3.6 DOWNGRADE unix_random.c in lshd for lsh 2.0.1 leaks file descriptors related to the randomness generator, which allows l
CVE-2003-0826 HIGH 7.5 DOWNGRADE lsh daemon (lshd) does not properly return from certain functions in (1) read_line.c, (2) channel_commands.c,

References

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