CVE-2009-0051

CVE-2009-0051 is a medium-severity vulnerability in Zxid 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. The underlying weakness is classified as CWE-287.

Key facts

Description

ZXID 0.29 and earlier does not properly check the return value from the OpenSSL DSA_verify function, which allows remote attackers to bypass validation of the certificate chain via a malformed SSL/TLS signature, a similar vulnerability to CVE-2008-5077.

Frequently asked questions

What is CVE-2009-0051?
ZXID 0.29 and earlier does not properly check the return value from the OpenSSL DSA_verify function, which allows remote attackers to bypass validation of the certificate chain via a malformed SSL/TLS signature, a similar vulnerability to CVE-2008-5077.
How severe is CVE-2009-0051?
CVE-2009-0051 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2009-0051 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (64th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2009-0051?
CVE-2009-0051 primarily affects Zxid. In total, 27 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2009-0051?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2009-0051 published?
CVE-2009-0051 was published on 2009-01-07 and last updated on 2026-06-16.

References

Affected products (27)

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