Medium 4.3Published May 29, 2008

CVE-2008-0891Double free vulnerability in OpenSSL 0.9.8f and 0.9.8g, when the TLS server name extensions are enabled, allows remote attackers to cause a denial of service (crash) via a malformed Client Hello pack…

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

Does this affect you?

It affects openssl. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

Do this next

Start free and add your stackFree account, 3 products Every CVE for openssl Exploited in the last 30 days

Double free vulnerability in OpenSSL 0.9.8f and 0.9.8g, when the TLS server name extensions are enabled, allows remote attackers to cause a denial of service (crash) via a malformed Client Hello packet. NOTE: some of these details are obtained from third party information.

CVSS: 4.3 MEDIUM (v2.0, NVD)AV:N/AC:M/Au:N/C:N/I:N/A:P
Weakness (CWE): CWE-189
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	0.9.8f; 0.9.8g	NVD

References

References

http://cert.fi/haavoittuvuudet/2008/advisory-openssl.html
http://secunia.com/advisories/30405	vendor-advisory
http://secunia.com/advisories/30460
http://secunia.com/advisories/30825
http://secunia.com/advisories/30852
http://secunia.com/advisories/30868
http://secunia.com/advisories/31228
http://secunia.com/advisories/31288
http://security.gentoo.org/glsa/glsa-200806-08.xml
http://slackware.com/security/viewer.php?l=slackware-security&y=2008&m=slackware-security.562004
1–10 of 22

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.