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CVE-2012-2686

crypto/evp/e_aes_cbc_hmac_sha1.c in the AES-NI functionality in the TLS 1.1 and 1.2 implementations in OpenSSL 1.0.1 before 1.0.1d allows remote attackers to cause a denial of service (application crash) via crafted CBC data.

Severity
Medium 5.0
Published
8 Feb 2013
Last changed
16 Jun 2026
Added to UpHeron
21 Oct 2026
Exploit chance
40% in the next 30 daysHigher than 98% of CVEs. EPSS by FIRST, 12 Nov 2026
Weakness
CWE-310
Attack
Over the network · No login needed
Attacker can
Slow it down
CVSS vector
AV:N/AC:L/Au:N/C:N/I:N/A:P
Sources
NVD

Affected software

SoftwareAffected versions
OpenSSLServers and applications · cpe:a:openssl:openssl
  • Version 1.0.1
  • Version 1.0.1a
  • Version 1.0.1b
  • Version 1.0.1c

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2012-2686
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2012-2686