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CVE-2002-0656

81
FAUCET Score

CVE-2002-0656 describes buffer overflow vulnerabilities in OpenSSL versions 0.9.6d and earlier, and 0.9.7-beta2 and earlier, impacting products like Apple and Oracle. These flaws allow remote attackers to execute arbitrary code by sending a large client master key in SSL2 or a large session ID in SSL3. With a CVSS score of 7.5 (AV:N/AC:L/Au:N/C:P/I:P/A:P) and a FAUCET Risk Score of 99/100, this vulnerability is considered highly severe due to its network-based attack vector, low attack complexity, and potential for complete compromise of confidentiality, integrity, and availability. While not currently on the KEV catalog, an ExploitDB entry (EDB-40347) exists, indicating public exploit code availability, though there is minimal community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
0.9.1cCPE matchmatch criteria
cpe:2.3:a:openssl:openssl:0.9.1c:*:*:*:*:*:*:*
0.9.2bCPE matchmatch criteria
cpe:2.3:a:openssl:openssl:0.9.2b:*:*:*:*:*:*:*
0.9.3CPE matchmatch criteria
cpe:2.3:a:openssl:openssl:0.9.3:*:*:*:*:*:*:*
0.9.4CPE matchmatch criteria
cpe:2.3:a:openssl:openssl:0.9.4:*:*:*:*:*:*:*
0.9.5CPE matchmatch criteria
cpe:2.3:a:openssl:openssl:0.9.5:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

7.5HIGH

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

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
6.4
CvssVersion
2.0

Exploit Intelligence

EPSS Score
89.82%
Probability of exploitation in next 30 days
EPSS Percentile
99.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
ExploitDB: EDB-40347 · Sep 17, 2002
This CVE's current EPSS score of 0.8982 is in the 100th percentile among its peer group of 51,466 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (8)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux AS (Advanced Server) version 2.1
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Linux 6.2
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Linux 7.0
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Linux 7.1
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Linux 7.2
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Linux 7.3
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Stronghold 3
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Stronghold 4
View patch

Vendor Advisories (1)

redhatCVE-2002-0656Critical

security flaw

Jul 30, 2002

References

ftp.caldera.com / pub/security/OpenLinux/CSSA-2002-033.0.txt
ftp.caldera.com / pub/security/OpenLinux/CSSA-2002-033.1.txt
ftp.freebsd.org / pub/FreeBSD/CERT/advisories/FreeBSD-SA-02:33.openssl.asc
distro.conectiva.com.br / atualizacoes
cert.org / advisories/CA-2002-23.html
US Government Resource
iss.net / security_center/static/9714.php
iss.net / security_center/static/9716.php
kb.cert.org / vuls/id/102795
US Government Resource
kb.cert.org / vuls/id/258555
US Government Resource
linux-mandrake.com / en/security/2002/MDKSA-2002-046.php
securityfocus.com / bid/5362
securityfocus.com / bid/5363