CVE-2003-1338: CRLF injection vulnerability in Aprelium Abyss Web Server 1.1.2 and earlier allows remote attackers to inject

Q: How do I fix CVE-2003-1338?

abyss web server: upgrade to newer than 1.1.2. Exact commands for each OS are on this page.

Q: Is CVE-2003-1338 being exploited?

CVE-2003-1338 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2003-1338 affect?

CVE-2003-1338 affects abyss web server. Severity is medium (CVSS 4.3). CRLF injection vulnerability in Aprelium Abyss Web Server 1.1.2 and earlier allows remote attackers to inject arbitrary HTTP headers and possibly conduct HTTP Response Splitting attacks via CRLF sequences in the Location header.

Q: How urgent is CVE-2003-1338?

Priority 38/100. Public exploit reference

Routine

MEDIUM 4.3UPGRADE

CVE-2003-1338 is a medium-severity flaw (CVSS 4.3) affecting abyss web server. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

CRLF injection vulnerability in Aprelium Abyss Web Server 1.1.2 and earlier allows remote attackers to inject arbitrary HTTP headers and possibly conduct HTTP Response Splitting attacks via CRLF sequences in the Location header.

Why this priority

Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	4.3 (Medium)
EPSS exploit chance	1.3% (top 29%)
CISA exploited list	No
Published	2003-12-31
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: aprelium technologies

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

Am I affected?

Timeline

2003-12-31 05:00 UTCPublished CVE record published
2026-06-16 22:03 UTCUpdated Record last modified

aprelium technologies abyss web server UPGRADE

Affected: <= 1.1.2

Fixed in: newer than 1.1.2

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy abyss-web-server || rpm -q abyss-web-server || abyss-web-server --version

2. UPGRADE to newer than 1.1.2 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade abyss-web-server

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade abyss-web-server

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

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-2003-1338?

abyss web server: upgrade to newer than 1.1.2. Exact commands for each OS are on this page.

Is CVE-2003-1338 being exploited?

CVE-2003-1338 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-2003-1338 affect?

CVE-2003-1338 affects abyss web server. Severity is medium (CVSS 4.3). CRLF injection vulnerability in Aprelium Abyss Web Server 1.1.2 and earlier allows remote attackers to inject arbitrary HTTP headers and possibly conduct HTTP Response Splitting attacks via CRLF sequences in the Location header.

How urgent is CVE-2003-1338?

Priority 38/100. Public exploit reference

Related CVEs

CVE-2003-1364 HIGH 8.5 DOWNGRADE Aprelium Technologies Abyss Web Server 1.1.2, and possibly other versions before 1.1.4, allows remote attacker
CVE-2003-1363 MEDIUM 6.4 UPGRADE The remote web management interface of Aprelium Technologies Abyss Web Server 1.1.2 and earlier does not log c
CVE-2003-1337 HIGH 7.5 UPGRADE Heap-based buffer overflow in Aprelium Abyss Web Server 1.1.2 and earlier allows remote attackers to execute a
CVE-2002-1081 MEDIUM 5.0 DOWNGRADE The Administration console for Abyss Web Server 1.0.3 allows remote attackers to read files without providing
CVE-2002-1080 HIGH 7.5 DOWNGRADE The Administration console for Abyss Web Server 1.0.3 before Patch 2 allows remote attackers to gain privilege

References

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