How severe is CVE-2006-4511?

CVE-2006-4511 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2006-4511 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (86th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2006-4511?

CVE-2006-4511 primarily affects Novell Groupwise Messenger. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2006-4511?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2006-4511 published?

CVE-2006-4511 was published on 2006-10-05 and last updated on 2026-06-16.

CVE-2006-4511

CVE-2006-4511 is a medium-severity vulnerability in Novell Groupwise Messenger with a CVSS 2.0 base score of 5.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Medium (CVSS 2.0 base score 5.0)
EPSS exploit prediction: 3% (86th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Novell Groupwise Messenger
Published: 2006-10-05
Last modified: 2026-06-16

Description

Messenger Agents (nmma.exe) in Novell GroupWise 2.0.2 and 1.0.6 allows remote attackers to cause a denial of service (crash) via a crafted HTTP POST request to TCP port 8300 with a modified val parameter, which triggers a null dereference related to "zero-size strings in blowfish routines."

Frequently asked questions

What is CVE-2006-4511?: Messenger Agents (nmma.exe) in Novell GroupWise 2.0.2 and 1.0.6 allows remote attackers to cause a denial of service (crash) via a crafted HTTP POST request to TCP port 8300 with a modified val parameter, which triggers a null dereference related to "zero-size strings in blowfish routines."
How severe is CVE-2006-4511?: CVE-2006-4511 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2006-4511 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (86th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2006-4511?: CVE-2006-4511 primarily affects Novell Groupwise Messenger. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2006-4511?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2006-4511 published?: CVE-2006-4511 was published on 2006-10-05 and last updated on 2026-06-16.

References

Affected products (2)

cpe:2.3:a:novell:groupwise_messenger:1.0.6:*:*:*:*:*:*:*
cpe:2.3:a:novell:groupwise_messenger:2.0.2:*:*:*:*:*:*:*

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