Medium 5.0Published Aug 12, 2002

CVE-2002-0659The ASN1 library in OpenSSL 0.9.6d and earlier, and 0.9.7-beta2 and earlier, allows remote attackers to cause a denial of service via invalid encodings.

Updated under an hour ago (Nov 2, 2026, 12:10 AM ET)

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It affects openssl and 4 other products. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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The ASN1 library in OpenSSL 0.9.6d and earlier, and 0.9.7-beta2 and earlier, allows remote attackers to cause a denial of service via invalid encodings.

CVSS: 5.0 MEDIUM (v2.0, NVD)AV:N/AC:L/Au:N/C:N/I:N/A:P
Weakness (CWE): Not given
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Not given
NVD analysis: Modified
Record last updated: Jun 16, 2026
First seen by InfoSec Signals: Nov 1, 2026

Affected products

Affected products

openssl openssl openssl:openssl	0.9.1c; 0.9.2b; 0.9.3; 0.9.4; 0.9.5; 0.9.5a; 0.9.6; 0.9.6a; and 5 more ranges	NVD
oracle application_server oracle:application_server	all versions; 1.0.2; 1.0.2.1s; 1.0.2.2	NVD
oracle corporate_time_outlook_connector oracle:corporate_time_outlook_connector	3.1; 3.1.1; 3.1.2; 3.3	NVD
oracle http_server oracle:http_server	9.0.1; 9.2.0	NVD
apple mac_os_x apple:mac_os_x	10.0; 10.0.1; 10.0.2; 10.0.3; 10.0.4; 10.1; 10.1.1; 10.1.2; and 3 more ranges	NVD

References

References

http://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000516
http://rhn.redhat.com/errata/RHSA-2002-160.html
http://rhn.redhat.com/errata/RHSA-2002-161.html
http://rhn.redhat.com/errata/RHSA-2002-164.html
http://www.cert.org/advisories/CA-2002-23.html	us-government-resource
http://www.iss.net/security_center/static/9718.php
http://www.kb.cert.org/vuls/id/748355	us-government-resource
http://www.securityfocus.com/bid/5366

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.