CVE-2015-7826

moderate-risk

Published 2017-04-10

botan 1.11.x before 1.11.22 improperly handles wildcard matching against hostnames, which might allow remote attackers to have unspecified impact via a valid X.509 certificate, as demonstrated by accepting *.example.com as a match for bar.foo.example.com.

Do I need to act?

0.43% chance of exploitation

EPSS score — low exploit probability

Not on CISA KEV list

No confirmed active exploitation reported to CISA

Patch status unknown

Check vendor advisories for fix availability and mitigation guidance

CVSS 9.8/10 Critical

NETWORK / LOW complexity

Affected Products (1)

Botan

Affected Vendors

Botan Project

References (4)

Vendor Advisory https://botan.randombit.net/security.html#id3

Issue Tracking https://bugzilla.redhat.com/show_bug.cgi?id=1311620

Vendor Advisory https://botan.randombit.net/security.html#id3

Issue Tracking https://bugzilla.redhat.com/show_bug.cgi?id=1311620

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moderate-risk

Severity 32/34 · Critical

Exploitability 2/34 · Minimal

Exposure 5/34 · Minimal