CVE-2002-0471: PHPNetToolpack 0.1 allows remote attackers to execute arbitrary code via shell metacharacters in the a_query v

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HIGH 10.0DOWNGRADE

CVE-2002-0471 is a high-severity flaw (CVSS 10.0) affecting phpnettoolpack. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

PHPNetToolpack 0.1 allows remote attackers to execute arbitrary code via shell metacharacters in the a_query variable.

Why this priority

Critical severity
EPSS top 6%: very likely to be exploited
Public exploit reference

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

Risk facts

CVSS score	10.0 (High)
EPSS exploit chance	7.3% (top 6%)
CISA exploited list	No
Published	2002-08-12
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: phpnettoolpack

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

Am I affected?

Timeline

2002-08-12 04:00 UTCPublished CVE record published
2026-06-16 21:57 UTCUpdated Record last modified

phpnettoolpack phpnettoolpack DOWNGRADE

Affected: 0.1

Fixed in: no fixed release known

Safe to downgrade to: a release before 0.1

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 0.1 (Debian / Ubuntu)

apt-cache madison phpnettoolpack sudo apt install phpnettoolpack=<VERSION_BEFORE_0.1> sudo apt-mark hold phpnettoolpack

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

dnf --showduplicates list phpnettoolpack sudo dnf downgrade phpnettoolpack-<VERSION_BEFORE_0.1> sudo dnf versionlock add phpnettoolpack

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-2002-0471?

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

Is CVE-2002-0471 being exploited?

CVE-2002-0471 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-2002-0471 affect?

CVE-2002-0471 affects phpnettoolpack. Severity is high (CVSS 10.0). PHPNetToolpack 0.1 allows remote attackers to execute arbitrary code via shell metacharacters in the a_query variable.

How urgent is CVE-2002-0471?

Priority 64/100. Critical severity; EPSS top 6%: very likely to be exploited; Public exploit reference

Related CVEs

CVE-2002-0470 HIGH 7.2 DOWNGRADE PHPNetToolpack 0.1 relies on its environment's PATH to find and execute the traceroute program, which could al

References

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