Medium 4.3Published Aug 17, 2010

CVE-2010-2939Double free vulnerability in the ssl3_get_key_exchange function in the OpenSSL client (ssl/s3_clnt.c) in OpenSSL 1.0.0a, 0.9.8, 0.9.7, and possibly other versions, when using ECDH, allows context-dep…

Updated under an hour ago (Nov 2, 2026, 12:20 AM ET)

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No exploitation reported and no EPSS estimate yet.

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Double free vulnerability in the ssl3_get_key_exchange function in the OpenSSL client (ssl/s3_clnt.c) in OpenSSL 1.0.0a, 0.9.8, 0.9.7, and possibly other versions, when using ECDH, allows context-dependent attackers to cause a denial of service (crash) and possibly execute arbitrary code via a crafted private key with an invalid prime. NOTE: some sources refer to this as a use-after-free issue.

CVSS: 4.3 MEDIUM (v2.0, NVD)AV:N/AC:M/Au:N/C:N/I:N/A:P
Weakness (CWE): CWE-399
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	0.9.7; 0.9.8; 1.0.0a	NVD

References

References

http://lists.opensuse.org/opensuse-security-announce/2010-11/msg00005.html
http://marc.info/?l=bugtraq&m=130331363227777&w=2
http://seclists.org/fulldisclosure/2010/Aug/84
http://secunia.com/advisories/40906	vendor-advisory
http://secunia.com/advisories/41105
http://secunia.com/advisories/42309
http://secunia.com/advisories/42413
http://secunia.com/advisories/43312
http://security.FreeBSD.org/advisories/FreeBSD-SA-10:10.openssl.asc
http://securitytracker.com/id?1024296
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