CVE-2004-2003: Buffer overflow in the ssl_prcert function in the SSLway filter (sslway.c) for DeleGate 8.9.2 and earlier allo

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HIGH 7.5DOWNGRADE

CVE-2004-2003 is a high-severity flaw (CVSS 7.5) affecting delegate. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Buffer overflow in the ssl_prcert function in the SSLway filter (sslway.c) for DeleGate 8.9.2 and earlier allows remote attackers to execute arbitrary code via a certificate with a long (1) subject or (2) issuer name field.

Why this priority

High 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	7.5 (High)
EPSS exploit chance	6.6% (top 6%)
CISA exploited list	No
Published	2004-05-06
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: delegate

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

Am I affected?

Timeline

2004-05-06 04:00 UTCPublished CVE record published
2026-06-16 22:08 UTCUpdated Record last modified

delegate delegate DOWNGRADE

Affected: 7.7.0 · 7.7.1 · 7.8.0 · 7.8.1 · 7.8.2 · 7.9.11 · 8.3.3 · 8.3.4

Fixed in: no fixed release known

Safe to downgrade to: a release before 7.7.0

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 7.7.0 (Debian / Ubuntu)

apt-cache madison delegate sudo apt install delegate=<VERSION_BEFORE_7.7.0> sudo apt-mark hold delegate

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

dnf --showduplicates list delegate sudo dnf downgrade delegate-<VERSION_BEFORE_7.7.0> sudo dnf versionlock add delegate

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: DeleGate 7.8.x/8.x - SSLway Filter Remote Stack Buffer Overflow (PoC)

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-2004-2003?

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

Is CVE-2004-2003 being exploited?

CVE-2004-2003 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-2004-2003 affect?

CVE-2004-2003 affects delegate. Severity is high (CVSS 7.5). Buffer overflow in the ssl_prcert function in the SSLway filter (sslway.c) for DeleGate 8.9.2 and earlier allows remote attackers to execute arbitrary code via a certificate with a long (1) subject or (2) issuer name field.

How urgent is CVE-2004-2003?

Priority 55/100. High severity; EPSS top 6%: very likely to be exploited; Public exploit reference

Related CVEs

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CVE-2005-0861 HIGH 7.5 UPGRADE Multiple buffer overflows in DeleGate before 8.11.1 may allow attackers to cause a denial of service or execut
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References

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