How severe is CVE-2006-2531?

CVE-2006-2531 has a CVSS 2.0 base score of 7.5, rated high severity.

Is CVE-2006-2531 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 7% (94th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2006-2531?

CVE-2006-2531 affects Ipswitch Whatsup. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2006-2531?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2006-2531 published?

CVE-2006-2531 was published on 2006-05-22 and last updated on 2026-06-16.

CVE-2006-2531

CVE-2006-2531 is a high-severity vulnerability in Ipswitch Whatsup with a CVSS 2.0 base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: High (CVSS 2.0 base score 7.5)
EPSS exploit prediction: 7% (94th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Ipswitch Whatsup
Published: 2006-05-22
Last modified: 2026-06-16

Description

Ipswitch WhatsUp Professional 2006 only verifies the user's identity via HTTP headers, which allows remote attackers to spoof being a trusted console and bypass authentication by setting HTTP User-Agent header to "Ipswitch/1.0" and the User-Application header to "NmConsole".

Frequently asked questions

What is CVE-2006-2531?: Ipswitch WhatsUp Professional 2006 only verifies the user's identity via HTTP headers, which allows remote attackers to spoof being a trusted console and bypass authentication by setting HTTP User-Agent header to "Ipswitch/1.0" and the User-Application header to "NmConsole".
How severe is CVE-2006-2531?: CVE-2006-2531 has a CVSS 2.0 base score of 7.5, rated high severity.
Is CVE-2006-2531 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 7% (94th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2006-2531?: CVE-2006-2531 affects Ipswitch Whatsup. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2006-2531?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2006-2531 published?: CVE-2006-2531 was published on 2006-05-22 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:ipswitch:whatsup:professional_2006:*:*:*:*:*:*:*

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CVE-2005-1250 — High (CVSS 7.5): SQL injection vulnerability in the logon screen of the web front end (NmConsole/Login.asp) for IpSwitch WhatsUp…
CVE-2006-0911 — Medium (CVSS 5.0): NmService.exe in Ipswitch WhatsUp Professional 2006 allows remote attackers to cause a denial of service (CPU…

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