CVE-2017-3735

high-risk
Published 2017-08-28

While parsing an IPAddressFamily extension in an X.509 certificate, it is possible to do a one-byte overread. This would result in an incorrect text display of the certificate. This bug has been present since 2006 and is present in all versions of OpenSSL before 1.0.2m and 1.1.0g.

Do I need to act?

!
36.9% chance of exploitation in next 30 days
EPSS score — higher than 63% of all CVEs
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
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Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
5
CVSS 5.3/10 Medium
NETWORK / LOW complexity

Affected Vendors

67
/ 100
high-risk
Severity 21/34 · High
Exploitability 16/34 · Moderate
Exposure 30/34 · Critical