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Fencer Vulns
high 7.5

CVE-2002-0656 in the critical feed json

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 lar…

published 2002-07-31 24 y ago modified 2026-06-16 4 mo ago also EUVD-2002-0650

cvss
7.5
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
89.8%
EPSS 89.8% chance of exploitation in 30 days, percentile 99.7%
public exploits
1
Exploit-DB

Summary

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.

Patch / fix

  • openssl Debian 14, Debian 13, Debian 12 0.9.6e-1

debian advisories DEBIAN-CVE-2002-0656

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2002-0656 updated

security flaw

  • Red Hat Linux 6.2 Red Hat Linux 7.0 Red Hat Linux 7.1 Red Hat Linux 7.2 Red Hat Linux 7.3
    fixed: vendor fix RHSA-2002:155
  • Red Hat Stronghold 3
    fixed: vendor fix RHSA-2002:164
  • Red Hat Stronghold 4
    fixed: vendor fix RHSA-2002:163

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Timeline

  1. Published
  2. First public exploit (EDB-40347)

Exploit prediction

89.82% chance of exploitation in the next 30 days, higher than 99.7% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • EDB-40347 Apache mod_ssl OpenSSL < 0.9.6d / < 0.9.7-beta2 - 'openssl-too-open.c' SSL2 KEY_ARG Overflow remote, 2002-09-17

CVSS scores

assigned by version score vector
NVD 2.0 7.5 AV:N/AC:L/Au:N/C:P/I:P/A:P

Classification

Technology feeds

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.