RHEL 9 : krb5 (RHSA-2025:13664)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2025:13664 advisory. Kerberos is a network authentication system, which can improve the security of your network by eliminating the insecure practice of sending password...

CLSA-2025-1751895517 krb5: Fix of CVE-2025-3576

CVE-2025-3576: possible spoofing of GSSAPI-protected messages using RC4-HMAC-MD5...

The vulnerability of the “Termide Virtual Desktops Connection Manager” software server, related to an authentication error, allows unauthorized access to user domain accounts.

The vulnerability of the “Termide Virtual Desktops Connection Manager” software server is related to an authentication error based on the Kerberos protocol. Exploiting this vulnerability can allow a malicious actor to gain unauthorized access to user account credentials...

The vulnerability of the Kerberos authentication network protocol for Windows operating systems allows attackers to increase their privileges.

The vulnerability of the Kerberos authentication protocol for Windows operating systems is related to insufficient validation of input data. Exploiting this vulnerability allows a malicious actor to enhance their privileges remotely...

OESA-2025-1135 krb5 security update

Kerberos is a network authentication protocol. It is designed to provide strong authentication for client/server applications by using secret-key cryptography. Security Fixes: In MIT krb5 release 1.7 and later with incremental propagation enabled, an authenticated attacker can cause kadmind to...

PT-2025-6308 · Microsoft · Windows

Name of the Vulnerable Software and Affected Versions: Windows affected versions not specified Description: The issue is related to a denial-of-service vulnerability in the implementation of the Kerberos protocol in Windows operating systems, caused by insufficient input validation. This could...

OESA-2024-2380 krb5 security update

Kerberos is a network authentication protocol. It is designed to provide strong authentication for client/server applications by using secret-key cryptography. Security Fixes: CVE-2024-3596...

In MIT Kerberos 5 (aka krb5) before 1.21.3 an attacker can modify the plaintext Extra Count field of a confidential GSS krb5 wrap token causing the unwrapped token to appear truncated to the application.

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389-ds-base: potential denial of service via specially crafted kerberos AS-REQ request

A flaw was found in 389-ds-base. A specially-crafted LDAP query can potentially cause a failure on the directory server, leading to a denial of service...

Anomaly detection in certificate-based TGT requests

One of the most complex yet effective methods of gaining unauthorized access to corporate network resources is an attack using forged certificates. Attackers create such certificates to fool the Key Distribution Center KDC into granting access to the target companys network. An example of such an...

The vulnerability of the connection reuse function of the libcurl library allows a attacker to manipulate the krb5/kerberos/negotiate/GSSAPI protocol, potentially leading to unauthorized access to confidential information.

The vulnerability of the connection reuse function of the libcurl library is related to bypassing authentication. Exploiting this vulnerability could allow a remote attacker to influence the krb5/kerberos/negotiate/GSSAPI communication, potentially leading to unauthorized access to confidential...

PT-2023-2394 · Microsoft · Windows

Name of the Vulnerable Software and Affected Versions: Windows affected versions not specified Description: The issue is related to an insecure implementation of the Kerberos protocol in Windows, specifically involving the use of the RC4 encryption algorithm with the MD4 hash function. This can b...

The vulnerability of the Kerberos protocol implementation in Windows operating systems allows a perpetrator to execute arbitrary code.

The vulnerability of the Kerberos protocol in Windows operating systems arises from the execution of an operation beyond the buffer boundaries in memory. Exploiting this vulnerability allows a attacker to execute arbitrary code with SYSTEM privileges...

K50314830: Samba MITM vulnerability CVE-2017-11103

Security Advisory Description Heimdal before 7.4 allows remote attackers to impersonate services with Orpheus Lyre attacks because it obtains service-principal names in a way that violates the Kerberos 5 protocol specification. In krb5extractticket the KDC-REP service name must be obtained from t...

PT-2023-1512 · Microsoft · Windows

Name of the Vulnerable Software and Affected Versions: Windows affected versions not specified Description: The issue is caused by a buffer overflow in the Kerberos protocol implementation in the Windows operating system. This allows an attacker to execute arbitrary code with SYSTEM privileges. A...

November 8, 2022—KB5020010 (Security-only update)

None None...

November 8, 2022—KB5020009 (Monthly Rollup)

None None...

PT-2022-6537 · Heimdal +4 · Heimdal +4

Name of the Vulnerable Software and Affected Versions: heimdal versions 7.7.1 through 7.8.0 Description: The issue is related to the implementation of the Kerberos5 protocol in heimdal, specifically concerning incorrect validation of message integrity codes. This can allow a remote attacker to...

krb5: integer overflow vulnerabilities in PAC parsing

A vulnerability was found in MIT krb5. This flaw allows an authenticated attacker to cause a KDC or kadmind process to crash by reading beyond the bounds of allocated memory, creating a denial of service. A privileged attacker may similarly be able to cause a Kerberos or GSS application service t...

Heimdal 安全漏洞

Heimdal is Heimdal open source a Kerberos implementation and security program . Heimdal KDC has a security vulnerability , the vulnerability stems from the ASN.1 codec in the invalid free , an attacker can use the vulnerability can use Kerberos authentication can simulate a client or service to...