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Servers and applications

CVE-2011-3207

crypto/x509/x509_vfy.c in OpenSSL 1.0.x before 1.0.0e does not initialize certain structure members, which makes it easier for remote attackers to bypass CRL validation by using a nextUpdate value corresponding to a time in the past.

Severity
Medium 5.0
Published
22 Sept 2011
Last changed
16 Jun 2026
Added to UpHeron
21 Oct 2026
Exploit chance
4.4% in the next 30 daysHigher than 91% of CVEs. EPSS by FIRST, 12 Nov 2026
Weakness
CWE-264
Attack
Over the network · No login needed
Attacker can
Change some data
CVSS vector
AV:N/AC:L/Au:N/C:N/I:P/A:N
Sources
NVD

Affected software

SoftwareAffected versions
OpenSSLServers and applications · cpe:a:openssl:openssl
  • Version 1.0.0d
  • Version 1.0.0c
  • Version 1.0.0b
  • Version 1.0.0a
All 10 release lines
  • Version 1.0.0-beta1
  • Version 1.0.0-beta2
  • Version 1.0.0-beta3
  • Version 1.0.0-beta4
  • Version 1.0.0-beta5
  • Version 1.0.0
  • Version 1.0.0a
  • Version 1.0.0b
  • Version 1.0.0c
  • Version 1.0.0d

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2011-3207
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2011-3207