CVE-2001-0871: Directory traversal vulnerability in HTTP server for Alchemy Eye and Alchemy Network Monitor allows remote att

Q: How do I fix CVE-2001-0871?

alchemy eye: downgrade or apply the listed mitigation; alchemy network monitor: upgrade to newer than 3.0.10. Exact commands for each OS are on this page.

Q: Is CVE-2001-0871 being exploited?

CVE-2001-0871 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-2001-0871 affect?

CVE-2001-0871 affects alchemy eye, alchemy network monitor. Severity is high (CVSS 7.5). Directory traversal vulnerability in HTTP server for Alchemy Eye and Alchemy Network Monitor allows remote attackers to execute arbitrary commands via an HTTP request containing (1) a .. in versions 2.0 through 2.6.18, or (2) a DOS device n

This month

HIGH 7.5DOWNGRADEUPGRADE

CVE-2001-0871 is a high-severity flaw (CVSS 7.5) affecting alchemy eye, alchemy network monitor. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Directory traversal vulnerability in HTTP server for Alchemy Eye and Alchemy Network Monitor allows remote attackers to execute arbitrary commands via an HTTP request containing (1) a .. in versions 2.0 through 2.6.18, or (2) a DOS device name followed by a .. in versions 2.6.19 through 3.0.10.

Why this priority

High severity

A fixed release or distro patch exists.

Risk facts

CVSS score	7.5 (High)
EPSS exploit chance	3.0% (top 13%)
CISA exploited list	No
Published	2001-12-21
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: alchemy lab · dek software

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

Am I affected?

Timeline

2001-12-21 05:00 UTCPublished CVE record published
2026-06-16 21:55 UTCUpdated Record last modified

alchemy lab alchemy eye DOWNGRADE

Affected: 2.0 · 2.1 · 2.2 · 2.3 · 2.4 · 2.5 · 2.6 · 2.6.18

Fixed in: no fixed release known

Safe to downgrade to: a release before 2.0

1. Check installed version

apt-cache policy alchemy-eye || rpm -q alchemy-eye || alchemy-eye --version

2. No fixed release: DOWNGRADE to a release before 2.0 (Debian / Ubuntu)

apt-cache madison alchemy-eye sudo apt install alchemy-eye=<VERSION_BEFORE_2.0> sudo apt-mark hold alchemy-eye

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

dnf --showduplicates list alchemy-eye sudo dnf downgrade alchemy-eye-<VERSION_BEFORE_2.0> sudo dnf versionlock add alchemy-eye

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.

dek software alchemy network monitor UPGRADE

Affected: <= 3.0.10

Fixed in: newer than 3.0.10

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy alchemy-network-monitor || rpm -q alchemy-network-monitor || alchemy-network-monitor --version

2. UPGRADE to newer than 3.0.10 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade alchemy-network-monitor

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade alchemy-network-monitor

Note

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

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-2001-0871?

alchemy eye: downgrade or apply the listed mitigation; alchemy network monitor: upgrade to newer than 3.0.10. Exact commands for each OS are on this page.

Is CVE-2001-0871 being exploited?

CVE-2001-0871 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-2001-0871 affect?

CVE-2001-0871 affects alchemy eye, alchemy network monitor. Severity is high (CVSS 7.5). Directory traversal vulnerability in HTTP server for Alchemy Eye and Alchemy Network Monitor allows remote attackers to execute arbitrary commands via an HTTP request containing (1) a .. in versions 2.0 through 2.6.18, or (2) a DOS device n

How urgent is CVE-2001-0871?

Priority 48/100. High severity

Related CVEs

CVE-2001-0870 MEDIUM 5.0 DOWNGRADE UPGRADE HTTP server in Alchemy Eye and Alchemy Network Monitor 1.9x through 2.6.18 is enabled without authentication b

References

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