CVE-2009-0124

5.0
CVSS v2.0 Base Score
1.32%
LOW RiskEPSS (70th percentile)

The tqsl_verifyDataBlock function in openssl_cert.cpp in American Radio Relay League (ARRL) tqsllib 2.0 does not properly check the return value from the OpenSSL EVP_VerifyFinal 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.

Published: 1/15/2009
Modified: 6/16/2026
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Vulnerability Summary

CVSS v2 Score

5

AV:N/AC:L/Au:N/C:P/I:N/A:N

EPSS Score (Exploitation Probability)

1.32%LOW Exploitation Risk
70th percentile

This vulnerability has a 1.32% probability of being exploited in the next 30 days, ranking higher than 70% of all scored CVEs.

CWE Classification

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