CVE-2016-6879

CVE-2016-6879 is a high-severity vulnerability in Botan Project Botan with a CVSS 3.x base score of 7.5. 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-320.

Key facts

Description

The X509_Certificate::allowed_usage function in botan 1.11.x before 1.11.31 might allow attackers to have unspecified impact by leveraging a call with more than one Key_Usage set in the enum value.

Frequently asked questions

What is CVE-2016-6879?
The X509_Certificate::allowed_usage function in botan 1.11.x before 1.11.31 might allow attackers to have unspecified impact by leveraging a call with more than one Key_Usage set in the enum value.
How severe is CVE-2016-6879?
CVE-2016-6879 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.
Is CVE-2016-6879 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (42nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2016-6879?
CVE-2016-6879 primarily affects Botan Project Botan. In total, 31 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2016-6879?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2016-6879 published?
CVE-2016-6879 was published on 2017-04-10 and last updated on 2026-06-17.

References

Affected products (31)

More vulnerabilities in Botan Project Botan

All CVEs affecting Botan Project Botan →

Other CWE-320 vulnerabilities

Browse all CWE-320 vulnerabilities →