CVE-2001-0298: Buffer overflow in WebReflex 1.55 HTTPd allows remote attackers to cause a denial of service, and possibly exe

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MEDIUM 5.0DOWNGRADE

CVE-2001-0298 is a medium-severity flaw (CVSS 5.0) affecting webreflex. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Buffer overflow in WebReflex 1.55 HTTPd allows remote attackers to cause a denial of service, and possibly execute arbitrary commands, via a long HTTP GET request.

Why this priority

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	5.0 (Medium)
EPSS exploit chance	7.1% (top 6%)
CISA exploited list	No
Published	2001-05-03
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: sapio design ltd

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

Am I affected?

Timeline

2001-05-03 04:00 UTCPublished CVE record published
2026-06-16 21:54 UTCUpdated Record last modified

sapio design ltd webreflex DOWNGRADE

Affected: 1.55

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.55

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 1.55 (Debian / Ubuntu)

apt-cache madison webreflex sudo apt install webreflex=<VERSION_BEFORE_1.55> sudo apt-mark hold webreflex

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

dnf --showduplicates list webreflex sudo dnf downgrade webreflex-<VERSION_BEFORE_1.55> sudo dnf versionlock add webreflex

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.

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Exploit-DB: Sapio WebReflex 1.55 - GET Denial of Service

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-2001-0298?

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

Is CVE-2001-0298 being exploited?

CVE-2001-0298 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-2001-0298 affect?

CVE-2001-0298 affects webreflex. Severity is medium (CVSS 5.0). Buffer overflow in WebReflex 1.55 HTTPd allows remote attackers to cause a denial of service, and possibly execute arbitrary commands, via a long HTTP GET request.

How urgent is CVE-2001-0298?

Priority 46/100. EPSS top 6%: very likely to be exploited; Public exploit reference

Software pages

Apache HTTP Server vulnerabilities

Related CVEs

CVE-2002-2229 MEDIUM 5.0 DOWNGRADE Directory traversal vulnerability in Sapio Design Ltd

References

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