CVE-2008-6185: NoticeWare Email Server NG 5.1.2.2 allows remote attackers to cause a denial of service (crash) via multiple P

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MEDIUM 5.0DOWNGRADE

CVE-2008-6185 is a medium-severity flaw (CVSS 5.0) affecting noticeware email server ng. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

NoticeWare Email Server NG 5.1.2.2 allows remote attackers to cause a denial of service (crash) via multiple POP3 requests with a long PASS command.

Why this priority

Public exploit reference

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

Risk facts

CVSS score	5.0 (Medium)
EPSS exploit chance	2.7% (top 14%)
CISA exploited list	No
Weakness	CWE-20
Published	2009-02-19
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: noticeware

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

Am I affected?

Timeline

2009-02-19 18:30 UTCPublished CVE record published
2026-06-16 23:01 UTCUpdated Record last modified

noticeware noticeware email server ng DOWNGRADE

Affected: 5.1.2.2

Fixed in: no fixed release known

Safe to downgrade to: a release before 5.1.2.2

1. Check installed version

apt-cache policy noticeware-email-server-ng || rpm -q noticeware-email-server-ng || noticeware-email-server-ng --version

2. No fixed release: DOWNGRADE to a release before 5.1.2.2 (Debian / Ubuntu)

apt-cache madison noticeware-email-server-ng sudo apt install noticeware-email-server-ng=<VERSION_BEFORE_5.1.2.2> sudo apt-mark hold noticeware-email-server-ng

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

dnf --showduplicates list noticeware-email-server-ng sudo dnf downgrade noticeware-email-server-ng-<VERSION_BEFORE_5.1.2.2> sudo dnf versionlock add noticeware-email-server-ng

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: Noticeware E-mail Server 5.1.2.2 - 'POP3' 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-2008-6185?

noticeware email server ng: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2008-6185 being exploited?

CVE-2008-6185 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-2008-6185 affect?

CVE-2008-6185 affects noticeware email server ng. Severity is medium (CVSS 5.0). NoticeWare Email Server NG 5.1.2.2 allows remote attackers to cause a denial of service (crash) via multiple POP3 requests with a long PASS command.

How urgent is CVE-2008-6185?

Priority 44/100. Public exploit reference

References

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