CVE-2002-0656

CVE-2002-0656 is a high-severity vulnerability in Openssl with a CVSS 2.0 base score of 7.5. Its EPSS exploit-prediction score of 90% places it in the 100th percentile, indicating an elevated likelihood of exploitation.

Key facts

Description

Buffer overflows in OpenSSL 0.9.6d and earlier, and 0.9.7-beta2 and earlier, allow remote attackers to execute arbitrary code via (1) a large client master key in SSL2 or (2) a large session ID in SSL3.

Frequently asked questions

What is CVE-2002-0656?
Buffer overflows in OpenSSL 0.9.6d and earlier, and 0.9.7-beta2 and earlier, allow remote attackers to execute arbitrary code via (1) a large client master key in SSL2 or (2) a large session ID in SSL3.
How severe is CVE-2002-0656?
CVE-2002-0656 has a CVSS 2.0 base score of 7.5, rated high severity.
Is CVE-2002-0656 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 90% (100th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2002-0656?
CVE-2002-0656 primarily affects Openssl. In total, 34 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2002-0656?
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-2002-0656 published?
CVE-2002-0656 was published on 2002-08-12 and last updated on 2026-06-16.

References

Affected products (34)

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