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Servers and applications

CVE-2010-3864

Multiple race conditions in ssl/t1_lib.c in OpenSSL 0.9.8f through 0.9.8o, 1.0.0, and 1.0.0a, when multi-threading and internal caching are enabled on a TLS server, might allow remote attackers to execute arbitrary code via client data that triggers a heap-based buffer overflow, related to (1) the TLS server name extension and (2) elliptic curve cryptography.

Severity
High 7.6
Published
17 Nov 2010
Last changed
16 Jun 2026
Added to UpHeron
21 Oct 2026
Exploit chance
22% in the next 30 daysHigher than 97% of CVEs. EPSS by FIRST, 12 Nov 2026
Weakness
Race condition (CWE-362)
Attack
Over the network · Only under certain conditions · No login needed
Attacker can
Read data · Change data · Take it down
CVSS vector
AV:N/AC:H/Au:N/C:C/I:C/A:C
Sources
NVD

Affected software

SoftwareAffected versions
OpenSSLServers and applications · cpe:a:openssl:openssl
  • Version 1.0.0a
  • Version 1.0.0
  • Version 0.9.8o
  • Version 0.9.8n
All 12 release lines
  • Version 0.9.8f
  • Version 0.9.8g
  • Version 0.9.8h
  • Version 0.9.8i
  • Version 0.9.8j
  • Version 0.9.8k
  • Version 0.9.8l
  • Version 0.9.8m
  • Version 0.9.8n
  • Version 0.9.8o
  • Version 1.0.0
  • Version 1.0.0a

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2010-3864
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2010-3864