Buffer Overflow Vulnerability in YubiServer by Yubico
CVE-2015-0843

9.8CRITICAL

Key Information:

Vendor

Yubiserver

Status
Yubiserver
Vendor
CVE Published:
26 June 2025

What is CVE-2015-0843?

A buffer overflow vulnerability exists in YubiServer versions prior to 0.6 due to improper use of the sprintf function. This flaw can potentially allow attackers to exploit the application, leading to unauthorized access or information disclosure. It is crucial for users of affected versions to apply the necessary patches to secure their systems.

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Affected Version(s)

yubiserver 0 < 0.6

References

https://bugs.debian.org/796495
http://www.include.gr/debian/yubiserver/#changelog

CVSS V3.1

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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