CVE-2004-0163: Sygate Secure Enterprise (SSE) 3.5MR3 and earlier does not change the key used to encrypt data, which allows r

Q: How do I fix CVE-2004-0163?

secure enterprise: upgrade to newer than 3.5mr3. Exact commands for each OS are on this page.

Q: Is CVE-2004-0163 being exploited?

CVE-2004-0163 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-2004-0163 affect?

CVE-2004-0163 affects secure enterprise. Severity is medium (CVSS 5.0). Sygate Secure Enterprise (SSE) 3.5MR3 and earlier does not change the key used to encrypt data, which allows remote attackers to cause a denial of service (resource exhaustion) by capturing a session and repeatedly replaying the session.

Q: How urgent is CVE-2004-0163?

Priority 37/100. No elevated risk signals yet.

Routine

MEDIUM 5.0UPGRADE

CVE-2004-0163 is a medium-severity flaw (CVSS 5.0) affecting secure enterprise. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Sygate Secure Enterprise (SSE) 3.5MR3 and earlier does not change the key used to encrypt data, which allows remote attackers to cause a denial of service (resource exhaustion) by capturing a session and repeatedly replaying the session.

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	5.0 (Medium)
EPSS exploit chance	1.6% (top 24%)
CISA exploited list	No
Published	2004-09-28
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: sygate technologies

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

Am I affected?

Timeline

2004-09-28 04:00 UTCPublished CVE record published
2026-06-16 22:05 UTCUpdated Record last modified

sygate technologies secure enterprise UPGRADE

Affected: <= 3.5mr3

Fixed in: newer than 3.5mr3

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy secure-enterprise || rpm -q secure-enterprise || secure-enterprise --version

2. UPGRADE to newer than 3.5mr3 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade secure-enterprise

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade secure-enterprise

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-2004-0163?

secure enterprise: upgrade to newer than 3.5mr3. Exact commands for each OS are on this page.

Is CVE-2004-0163 being exploited?

CVE-2004-0163 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-2004-0163 affect?

CVE-2004-0163 affects secure enterprise. Severity is medium (CVSS 5.0). Sygate Secure Enterprise (SSE) 3.5MR3 and earlier does not change the key used to encrypt data, which allows remote attackers to cause a denial of service (resource exhaustion) by capturing a session and repeatedly replaying the session.

How urgent is CVE-2004-0163?

Priority 37/100. No elevated risk signals yet.

Related CVEs

CVE-2004-0593 HIGH 7.5 UPGRADE DOWNGRADE Sygate Enforcer 3.5MR1 and earlier passes broadcast traffic before authentication, which could allow remote at

References

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