CVE-2002-2002: Buffer overflow in libc in Compaq Tru64 4.0F, 5.0, 5.1 and 5.1A allows attackers to execute arbitrary code via

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HIGH 7.5MITIGATE

CVE-2002-2002 is a high-severity flaw (CVSS 7.5) affecting tru64. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Buffer overflow in libc in Compaq Tru64 4.0F, 5.0, 5.1 and 5.1A allows attackers to execute arbitrary code via long (1) LANG and (2) LOCPATH environment variables.

Why this priority

High severity

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

Risk facts

CVSS score	7.5 (High)
EPSS exploit chance	2.7% (top 14%)
CISA exploited list	No
Published	2002-12-31
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: compaq

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

Am I affected?

Timeline

2002-12-31 05:00 UTCPublished CVE record published
2026-06-16 22:00 UTCUpdated Record last modified

compaq tru64 MITIGATE

Affected: 4.0f · 5.0 · 5.1 · 5.1a

Fixed in: no fixed release known

Safe to downgrade to: a release before 4.0f

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

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-2002-2002?

tru64: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2002-2002 being exploited?

CVE-2002-2002 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-2002-2002 affect?

CVE-2002-2002 affects tru64. Severity is high (CVSS 7.5). Buffer overflow in libc in Compaq Tru64 4.0F, 5.0, 5.1 and 5.1A allows attackers to execute arbitrary code via long (1) LANG and (2) LOCPATH environment variables.

How urgent is CVE-2002-2002?

Priority 48/100. High severity

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References

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