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CVE-2010-2939

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.

Severity
Medium 4.3
Published
17 Aug 2010
Last changed
16 Jun 2026
Added to UpHeron
21 Oct 2026
Exploit chance
10% in the next 30 daysHigher than 95% of CVEs. EPSS by FIRST, 12 Nov 2026
Weakness
CWE-399
Attack
Over the network · No login needed
Attacker can
Slow it down
CVSS vector
AV:N/AC:M/Au:N/C:N/I:N/A:P
Sources
NVD

Affected software

SoftwareAffected versions
OpenSSLServers and applications · cpe:a:openssl:openssl
  • Version 0.9.7
  • Version 0.9.8
  • Version 1.0.0a

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2010-2939
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2010-2939