CVE-2001-0840: Buffer overflow in Compaq Insight Manager XE 2.1b and earlier allows remote attackers to execute arbitrary cod

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HIGH 10.0DOWNGRADE

CVE-2001-0840 is a high-severity flaw (CVSS 10.0) affecting insight manager xe. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Buffer overflow in Compaq Insight Manager XE 2.1b and earlier allows remote attackers to execute arbitrary code via (1) SNMP and (2) DMI.

Why this priority

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

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

Risk facts

CVSS score	10.0 (High)
EPSS exploit chance	9.0% (top 5%)
CISA exploited list	No
Published	2001-12-06
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

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

compaq insight manager xe DOWNGRADE

Affected: 1.0 · 1.21 · 2.1 · 2.1b

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.0

1. Check installed version

apt-cache policy insight-manager-xe || rpm -q insight-manager-xe || insight-manager-xe --version

2. No fixed release: DOWNGRADE to a release before 1.0 (Debian / Ubuntu)

apt-cache madison insight-manager-xe sudo apt install insight-manager-xe=<VERSION_BEFORE_1.0> sudo apt-mark hold insight-manager-xe

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

dnf --showduplicates list insight-manager-xe sudo dnf downgrade insight-manager-xe-<VERSION_BEFORE_1.0> sudo dnf versionlock add insight-manager-xe

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-2001-0840?

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

Is CVE-2001-0840 being exploited?

CVE-2001-0840 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-2001-0840 affect?

CVE-2001-0840 affects insight manager xe. Severity is high (CVSS 10.0). Buffer overflow in Compaq Insight Manager XE 2.1b and earlier allows remote attackers to execute arbitrary code via (1) SNMP and (2) DMI.

How urgent is CVE-2001-0840?

Priority 59/100. Critical severity; EPSS top 5%: very likely to be exploited

Related CVEs

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References

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