CVE-2013-4175: MySecureShell 1.31 has a Local Denial of Service Vulnerability

Routine

MEDIUM 5.5DOWNGRADE

CVE-2013-4175 is a medium-severity flaw (CVSS 5.5) affecting mysecureshell. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

MySecureShell 1.31 has a Local Denial of Service Vulnerability

Why this priority

Public exploit reference

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

Risk facts

CVSS score	5.5 (Medium)
Attack vector	Local
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.4% (top 61%)
CISA exploited list	No
Weakness	CWE-400
Published	2020-01-23
Last modified	2026-06-16

Publisher (CNA): Red Hat, Inc. · Vendor: mysecureshell project

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

Am I affected?

Timeline

2020-01-23 15:15 UTCPublished CVE record published
2026-06-16 23:56 UTCUpdated Record last modified

mysecureshell project mysecureshell DOWNGRADE

Affected: 1.31

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.31

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 1.31 (Debian / Ubuntu)

apt-cache madison mysecureshell sudo apt install mysecureshell=<VERSION_BEFORE_1.31> sudo apt-mark hold mysecureshell

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

dnf --showduplicates list mysecureshell sudo dnf downgrade mysecureshell-<VERSION_BEFORE_1.31> sudo dnf versionlock add mysecureshell

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-2013-4175?

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

Is CVE-2013-4175 being exploited?

CVE-2013-4175 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-2013-4175 affect?

CVE-2013-4175 affects mysecureshell. Severity is medium (CVSS 5.5). MySecureShell 1.31 has a Local Denial of Service Vulnerability

How urgent is CVE-2013-4175?

Priority 34/100. Public exploit reference

Related CVEs

CVE-2013-4176 MEDIUM 5.5 DOWNGRADE mysecureshell 1.31: Local Information Disclosure Vulnerability

References

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