How severe is CVE-2000-0573?

No CVSS score has been assigned to CVE-2000-0573 yet. Review the advisory details and affected package list to assess your exposure.

Which products are affected by CVE-2000-0573?

CVE-2000-0573 affects the following products: hp hp-ux.

How do I patch CVE-2000-0573?

No patch has shipped for CVE-2000-0573 yet — track the hp hp-ux advisory for a fixed release and apply the workarounds below in the meantime.

How do I detect CVE-2000-0573 across my infrastructure?

Inventory every hp hp-ux deployment and check each version against the affected-products list above.

How do I mitigate CVE-2000-0573 if there is no patch (or I can't update yet)?

If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands. Alongside that, restrict the management interface to trusted networks and apply the vendor's recommended configuration mitigations.

Is CVE-2000-0573 actively exploited in the wild?

Yes. There are 8 known exploit references for CVE-2000-0573, including 7 documented proof-of-concept exploits on Exploit-DB and 1 in-the-wild exploitation observed on GitHub and other sources. Treat this as actively exploitable and prioritize patching immediately. All exploit code should only be run in an isolated sandbox environment for research or authorized testing — never against production systems without explicit written authorization.

What is the EPSS score for CVE-2000-0573?

CVE-2000-0573 has an EPSS (Exploit Prediction Scoring System) score of 96.2%, placing it in the 100th percentile of all CVEs. EPSS is maintained by FIRST.org and estimates the probability that a vulnerability will be exploited in the wild within the next 30 days. A score above 50% indicates significantly elevated exploitation risk — immediate patching is strongly recommended.

Which products and versions are affected by CVE-2000-0573?

CVE-2000-0573 affects hp hp-ux (1 version, e.g. 11.00). Check the affected-products list on this page against your deployed version to confirm exposure.

When was CVE-2000-0573 published, and has it been updated?

CVE-2000-0573 was published on July 7, 2000 and was last updated on June 16, 2026. Advisory data evolves as severity scores, affected ranges, and exploit intelligence are revised — always check the latest version of the advisory before acting.

Not in CISA KEV

CVE-2000-0573 — HP-UX

CVE-2000-0573 is a security vulnerability in hp hp-ux. 8 public exploit references exist, so weaponization risk is real. No vendor fix is recorded yet; mitigation options are listed below.

The lreply function in wu-ftpd 2.6.0 and earlier does not properly cleanse an untrusted format string, which allows remote attackers to execute arbitrary commands via the SITE EXEC command.

Published

Jul 7, 2000

Updated

Jun 16, 2026

Affected

1 product

Patched

See advisory

Exploits

8 known

Exploitation data as of Oct 21, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗

96.2%probability of exploitation in next 30 days

Very High Risk0.00%

Lower risk than most CVEs100th percentile — riskier than 100% of all scored CVEsHighest risk

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

Description

The lreply function in wu-ftpd 2.6.0 and earlier does not properly cleanse an untrusted format string, which allows remote attackers to execute arbitrary commands via the SITE EXEC command.

Affected Products

1 product · 1 configurations

hp-uxhp

1 version

11.00

Exploits & PoCs

Research use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.

EDB-20031remotelinux✓ Verified

WU-FTPD 2.4.2/2.5 .0/2.6.0 - Remote Format String Stack Overwrite (2)

by vsz_ · Sep 26, 2000

Exploit-DB Source

EDB-20030remoteunix✓ Verified

WU-FTPD 2.4.2/2.5 .0/2.6.0 - Remote Format String Stack Overwrite (1)

by tf8 · Oct 15, 1999

Exploit-DB Source

EDB-16311remotelinux✓ Verified

WU-FTPD - Site EXEC/INDEX Format String (Metasploit)

by Metasploit · Nov 30, 2010

Exploit-DB Source

EDB-20032remotelinux_x86✓ Verified

WU-FTPD 2.4.2/2.5 .0/2.6.0 - Remote Format String Stack Overwrite (3)

by justme · May 4, 2001

Exploit-DB Source

EDB-201remotemultiple✓ Verified

WU-FTPD 2.6.0 - Remote Command Execution

by venglin · Nov 21, 2000

Exploit-DB Source

EDB-239remotesolaris✓ Verified

WU-FTPD 2.6.0 - Remote Format Strings

by kalou · Jan 3, 2001

Exploit-DB Source

EDB-269remotelinux_x86✓ Verified

BeroFTPD 1.3.4(1) (Linux x86) - Remote Code Execution

by qitest1 · May 8, 2001

Exploit-DB Source

Detection & mitigation playbook

Vendor / appliance

Detect
Inventory every hp hp-ux deployment and check each version against the affected-products list above.
Remediation status
No patch has shipped for CVE-2000-0573 yet — track the hp hp-ux advisory for a fixed release and apply the workarounds below in the meantime.
Mitigate without a patch
If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands. Alongside that, restrict the management interface to trusted networks and apply the vendor's recommended configuration mitigations.

Frequently Asked Questions

The lreply function in wu-ftpd 2.6.0 and earlier does not properly cleanse an untrusted format string, which allows remote attackers to execute arbitrary commands via the SITE EXEC command.

O3 Security · Runtime Protection

Is CVE-2000-0573 being exploited in your environment?

Detect and block the exploit chain at execution, on systems you cannot patch yet.

Protect my workloads How runtime protection works

CVE-2000-0573 — HP-UX

EPSS Exploitation Probability

Description

Affected Products

Detection & mitigation playbook

Detect

Remediation status

Mitigate without a patch

Frequently Asked Questions

Is CVE-2000-0573 being exploited in your environment?