Cyassl vulnerabilitiesRanked by how likely they are to be used.

Product42 versions
The short answer

Cyassl is made by Yassl. We track 4 published vulnerabilities in it, across 42 versions. None of them is on the list of flaws known to be exploited today. If you run Cyassl, keep it on a version the vendor still supports.

See the riskiest flaws

We keep watching the known-exploited list.

Known exploited

Which Cyassl vulnerabilities are being exploited?

This is the list that matters most: flaws criminals are using now.

None of Cyassl's published vulnerabilities is on the list of flaws known to be exploited today. We keep watching that list.

Exploit likelihood

Which Cyassl flaws are most likely to be used?

Ranked by the latest exploit-likelihood forecast: the chance each flaw is used in an attack in the next 30 days. A high severity score on its own doesn't tell you that. Flaws shared by many other makers' products are left out.

50% or more10% to 49%Under 10%
  1. 2.4%

    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...

    CVSS4.3Published8 Feb 2013
  2. 1.8%

    wolfSSL CyaSSL before 2.9.4 allows remote attackers to cause a denial of service (NULL pointer dereference) via (1) a request for the peer certificate when a certificate parsing failure occurs or (2) a...

    CVSS5.0Published22 Apr 2014
  3. 1.4%

    yaSSL CyaSSL before 2.0.8 allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) via a crafted X.509 certificate.

    CVSS5.0Published12 Mar 2012
  4. 1.0%

    wolfSSL CyaSSL before 2.9.4 does not properly validate X.509 certificates with unknown critical extensions, which allows man-in-the-middle attackers to spoof servers via crafted X.509 certificate.

    CVSS5.8Published22 Apr 2014
Precursor Intelligence

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FAQ

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We track 4 published vulnerabilities listed under the name Cyassl, across 42 versions.

None of Cyassl's vulnerabilities is on the list of flaws known to be exploited today.

Create a Precursor Intelligence account and track Cyassl. We match it against every published flaw, give each one a risk score from 0 to 100 and keep watching, so you hear about new ones as soon as we know, by email, in the app or by webhook.