ZDF
Sign inSign up

Vulnerabilities

Vulnerability · 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…

Published Aug 12, 2002 · catalog updated Jun 16, 2026 · Apple

Check this week

CVE-2002-0656 is not in CISA KEV. FIRST estimates a 89.82% chance of exploitation in the next 30 days. Check whether you run Apple.

Gaps on this record

  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
High7.5
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
89.82%
Remediation
Advisory link
Affected products
cpe apple/mac os x · cpe openssl/openssl

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.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe apple/mac os x10.0
  • cpe openssl/openssl0.9.1c
  • cpe openssl/openssl0.9.2b
  • cpe openssl/openssl0.9.3
  • cpe openssl/openssl0.9.4
  • cpe openssl/openssl0.9.5
  • cpe openssl/openssl0.9.5a

How to fix CVE-2002-0656

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

CVE-2002-0656 is not in CISA KEV. FIRST estimates a 89.82% chance of exploitation in the next 30 days. Check whether you run Apple.

Which versions are affected?

Compare what you have installed with apple/mac os x 10.0. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 89.82%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Aug 12, 2002 · Apple Security Releases

    Detected

    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.

  2. Jun 16, 2026 · Apple Security Releases

    Updated

    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.

Sources

  • Apple Security ReleasesVendor advisoryCVE-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.

    nvd.nist.gov
  • CVE.orgVulnerability recordCVE-2002-0656

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2002-0656

    30-day exploitation probability 89.8%

    first.org

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.