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CVE-2013-1623

MEDIUM · CVSS 4.3EPSS 2.4%EU EUVD

The TLS and DTLS implementations in wolfSSL CyaSSL before 2.5.0 do not properly consider timing side-channel attacks on a noncompliant MAC check operation during the processing of malformed CBC padding, which allows remote attackers to conduct distinguishing attacks and plaintext-recovery attacks via statistical analysis of timing data for crafted packets, a related issue to CVE-2013-0169.

Key facts

CVSS score
4.3 (v2.0)
Severity
MEDIUM
CVSS vector
AV:N/AC:M/Au:N/C:P/I:N/A:N
Weakness (CWE)
CWE-310
EPSS score
2.4% (84th percentile)
In CISA KEV
No
In EU EUVD
Yes (EUVD-2013-1658)
Published
February 8, 2013
NVD last modified
June 16, 2026
Status
Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2013-1658 in the EU Vulnerability Database. Last updated in EUVD on August 6, 2024.

View on the EU Vulnerability Database

Affected products

  • yassl / cyassl
  • yassl / cyassl
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  • yassl / cyassl
  • yassl / cyassl
  • yassl / cyassl

References

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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