CVE-2009-4810

CVE-2009-4810 is a high-severity vulnerability in Samhain Labs Samhain 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. The underlying weakness is classified as CWE-20.

Key facts

Description

The Secure Remote Password (SRP) implementation in Samhain before 2.5.4 does not check for a certain zero value where required by the protocol, which allows remote attackers to bypass authentication via crafted input.

Frequently asked questions

What is CVE-2009-4810?
The Secure Remote Password (SRP) implementation in Samhain before 2.5.4 does not check for a certain zero value where required by the protocol, which allows remote attackers to bypass authentication via crafted input.
How severe is CVE-2009-4810?
CVE-2009-4810 has a CVSS 2.0 base score of 7.5, rated high severity.
Is CVE-2009-4810 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (83rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2009-4810?
CVE-2009-4810 primarily affects Samhain Labs Samhain. In total, 72 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2009-4810?
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-2009-4810 published?
CVE-2009-4810 was published on 2010-04-23 and last updated on 2026-06-16.

References

Affected products (72)

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