EUVD-2026-42598

Zeek before 8.0.9 contains a null pointer dereference vulnerability in its Kerberos protocol analyzer that allows unauthenticated remote attackers to crash the sensor by sending a crafted KRBERROR message with error-code 25 KDCERRPREAUTHREQUIRED containing a PA-DATA element with padata-type 2, 3,...

EUVD-2026-39650

It is possible to bypass the Kerberos pre-authentication check in Apache Kerby by sending a PA-DATA with an unrecognized or unsupported type. Users are recommended to upgrade to version 2.1.2, which fixes this issue...

CVE-2026-57915

It is possible to bypass the Kerberos pre-authentication check in Apache Kerby by sending a PA-DATA with an unrecognized or unsupported type. Users are recommended to upgrade to version 2.1.2, which fixes this issue...

CVE-2026-57915

It is possible to bypass the Kerberos pre-authentication check in Apache Kerby by sending a PA-DATA with an unrecognized or unsupported type. Users are recommended to upgrade to version 2.1.2, which fixes this issue...

CVE-2026-57915

CVE-2026-57915 affects Apache Kerby: Kerberos pre-authentication can be bypassed by sending a PA-DATA with an unrecognized/unsupported type. The issue is enabled by the underlying pre-auth check and is fixed in Apache Kerby version 2.1.2. Reported impact from sources indicates a high-severity con...

PT-2026-52698

Name of the Vulnerable Software and Affected Versions Apache Kerby versions prior to 2.1.2 Description An issue exists where the Kerberos pre-authentication check can be bypassed by sending a PA-DATA containing an unrecognized or unsupported type. Recommendations Upgrade to version 2.1.2...

USN-2310-1 krb5 vulnerabilities

It was discovered that Kerberos incorrectly handled certain crafted Draft 9 requests. A remote attacker could use this issue to cause the daemon to crash, resulting in a denial of service. This issue only affected Ubuntu 12.04 LTS. CVE-2012-1016 It was discovered that Kerberos incorrectly handled...