CVE-2012-1558

CVE-2012-1558 is a medium-severity vulnerability in Yassl Cyassl with a CVSS 2.0 base score of 5.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-399.

Key facts

Description

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.

Frequently asked questions

What is CVE-2012-1558?
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.
How severe is CVE-2012-1558?
CVE-2012-1558 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2012-1558 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (70th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2012-1558?
CVE-2012-1558 primarily affects Yassl Cyassl. In total, 35 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2012-1558?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2012-1558 published?
CVE-2012-1558 was published on 2012-03-12 and last updated on 2026-06-16.

References

Affected products (35)

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