CVE-2001-1586: Directory traversal vulnerability in SimpleServer:WWW 1.13 and earlier allows remote attackers to execute arbi

Q: How do I fix CVE-2001-1586?

simpleserver www: upgrade to newer than 1.13. Exact commands for each OS are on this page.

Q: Is CVE-2001-1586 being exploited?

CVE-2001-1586 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2001-1586 affect?

CVE-2001-1586 affects simpleserver www. Severity is high (CVSS 10.0). Directory traversal vulnerability in SimpleServer:WWW 1.13 and earlier allows remote attackers to execute arbitrary programs via encoded ../ ("%2E%2E%2F%") sequences in a request to the cgi-bin/ directory, a different vulnerability than CVE

Q: How urgent is CVE-2001-1586?

Priority 64/100. Critical severity; EPSS top 5%: very likely to be exploited; Public exploit reference

This week

HIGH 10.0UPGRADE

CVE-2001-1586 is a high-severity flaw (CVSS 10.0) affecting simpleserver www. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Directory traversal vulnerability in SimpleServer:WWW 1.13 and earlier allows remote attackers to execute arbitrary programs via encoded ../ ("%2E%2E%2F%") sequences in a request to the cgi-bin/ directory, a different vulnerability than CVE-2000-0664.

Why this priority

Critical severity
EPSS top 5%: very likely to be exploited
Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	10.0 (High)
EPSS exploit chance	8.4% (top 5%)
CISA exploited list	No
Weakness	CWE-22
Published	2010-02-12
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: analogx

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

Am I affected?

Timeline

2010-02-12 21:30 UTCPublished CVE record published
2026-06-16 21:56 UTCUpdated Record last modified

analogx simpleserver www UPGRADE

Affected: <= 1.13 · 1.0.8 · 1.01 · 1.03 · 1.04 · 1.05 · 1.06

Fixed in: newer than 1.13

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy simpleserver-www || rpm -q simpleserver-www || simpleserver-www --version

2. UPGRADE to newer than 1.13 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade simpleserver-www

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade simpleserver-www

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Exploit-DB: SimpleServer:WWW 1.0.7/1.0.8/1.13 - Hex Encoded URL Directory Traversal

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-2001-1586?

simpleserver www: upgrade to newer than 1.13. Exact commands for each OS are on this page.

Is CVE-2001-1586 being exploited?

CVE-2001-1586 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-2001-1586 affect?

CVE-2001-1586 affects simpleserver www. Severity is high (CVSS 10.0). Directory traversal vulnerability in SimpleServer:WWW 1.13 and earlier allows remote attackers to execute arbitrary programs via encoded ../ ("%2E%2E%2F%") sequences in a request to the cgi-bin/ directory, a different vulnerability than CVE

How urgent is CVE-2001-1586?

Priority 64/100. Critical severity; EPSS top 5%: very likely to be exploited; Public exploit reference

References

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