NegoExRelay

Negoexrelayx - Negoex relaying tool Toolkit for abusing Kerberos PKU2U and NegoEx. Requires impacket It is recommended to install impacket from git directly to have the latest version available. negoexrelayx.py This tool allows you to relay NegoEx with PKU2U authentication to other copmuter and...

CVE-2025-47981

🔵 CVE-2025-47981 — Windows SPNEGO NEGOEX Vulnerability Assessment Script Type: Vulnerability Assessment — Detection / Compliance Check CVE: CVE-2025-47981 CVSS: 9.8 Critical AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CWE: CWE-122 — Heap-based Buffer Overflow Alias: "SPNEGO Nightmare" / "Windows...

EulerOS Virtualization 2.10.0 : krb5 (EulerOS-SA-2026-3870)

According to the versions of the krb5 packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities : In MIT Kerberos 5 aka krb5 before 1.22.3, there is an integer underflow and resultant out-of-bounds read if an application calls...

EulerOS Virtualization 2.10.1 : krb5 (EulerOS-SA-2026-3836)

According to the versions of the krb5 packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities : In MIT Kerberos 5 aka krb5 before 1.22.3, there is an integer underflow and resultant out-of-bounds read if an application calls...

EulerOS 2.0 SP10 : krb5 (EulerOS-SA-2026-3745)

According to the versions of the krb5 packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : In MIT Kerberos 5 aka krb5 before 1.22.3, there is an integer underflow and resultant out-of-bounds read if an application calls gssacceptseccontext...

EulerOS 2.0 SP10 : krb5 (EulerOS-SA-2026-3697)

According to the versions of the krb5 packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : In MIT Kerberos 5 aka krb5 before 1.22.3, there is an integer underflow and resultant out-of-bounds read if an application calls gssacceptseccontext...

Astra Linux – Vulnerability in krb5

In MIT Kerberos 5 also known as krb5, prior to version 1.22.3, there was an integer underflow issue, which could lead to out-of-bounds reads if an application called gssacceptseccontext on a system where the NegoEx mechanism was registered in /etc/gss/mech. An unauthenticated remote attacker coul...

Astra Linux – Vulnerability in krb5

In MIT Kerberos 5 also known as krb5, prior to version 1.22.3, there was a NULL pointer dereferencing issue when an application called gssacceptseccontext on a system where the NegoEx mechanism was registered in /etc/gss/mech. An unauthenticated remote attacker could trigger this issue, causing t...

Exploit for Heap-based Buffer Overflow in Microsoft

🔵 CVE-2025-47981 — Windows SPNEGO NEGOEX Vulnerability Assessm...

EulerOS Virtualization 2.13.0 : krb5 (EulerOS-SA-2026-3217)

According to the versions of the krb5 packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities : In MIT Kerberos 5 aka krb5 before 1.22.3, there is a NULL pointer dereference if an application calls gssacceptseccontext on a system...

EulerOS Virtualization 2.13.1 : krb5 (EulerOS-SA-2026-3177)

According to the versions of the krb5 packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities : In MIT Kerberos 5 aka krb5 before 1.22.3, there is a NULL pointer dereference if an application calls gssacceptseccontext on a system...

JLSEC-2026-1258 In MIT Kerberos 5 (aka krb5) before 1.22.3, there is a NULL pointer dereference if an application...

In MIT Kerberos 5 aka krb5 before 1.22.3, there is a NULL pointer dereference if an application calls gssacceptseccontext on a system with a NegoEx mechanism registered in /etc/gss/mech. An unauthenticated remote attacker can trigger this, causing the process to terminate in parsenegomessage...

JLSEC-2026-1259 In MIT Kerberos 5 (aka krb5) before 1.22.3, there is an integer underflow and resultant out-of...

In MIT Kerberos 5 aka krb5 before 1.22.3, there is an integer underflow and resultant out-of-bounds read if an application calls gssacceptseccontext on a system with a NegoEx mechanism registered in /etc/gss/mech. An unauthenticated remote attacker can trigger this, possibly causing the process t...

EulerOS 2.0 SP11 : krb5 (EulerOS-SA-2026-3072)

According to the versions of the krb5 packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : In MIT Kerberos 5 aka krb5 before 1.22.3, there is a NULL pointer dereference if an application calls gssacceptseccontext on a system with a NegoEx...

EulerOS 2.0 SP11 : krb5 (EulerOS-SA-2026-3127)

According to the versions of the krb5 packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : In MIT Kerberos 5 aka krb5 before 1.22.3, there is a NULL pointer dereference if an application calls gssacceptseccontext on a system with a NegoEx...

EulerOS 2.0 SP15 : krb5 (EulerOS-SA-2026-2890)

According to the versions of the krb5 packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : In MIT Kerberos 5 aka krb5 before 1.22.3, there is an integer underflow and resultant out-of-bounds read if an application calls gssacceptseccontext...

EulerOS 2.0 SP15 : krb5 (EulerOS-SA-2026-2931)

According to the versions of the krb5 packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : In MIT Kerberos 5 aka krb5 before 1.22.3, there is an integer underflow and resultant out-of-bounds read if an application calls gssacceptseccontext...

EulerOS 2.0 SP13 : krb5 (EulerOS-SA-2026-2972)

According to the versions of the krb5 packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : In MIT Kerberos 5 aka krb5 before 1.22.3, there is a NULL pointer dereference if an application calls gssacceptseccontext on a system with a NegoEx...

EulerOS 2.0 SP13 : krb5 (EulerOS-SA-2026-3022)

According to the versions of the krb5 packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : In MIT Kerberos 5 aka krb5 before 1.22.3, there is a NULL pointer dereference if an application calls gssacceptseccontext on a system with a NegoEx...

USN-8585-1: Kerberos vulnerabilities

It was discovered that Kerberos had an integer underflow vulnerability in the berval2tldata function. An attacker could possibly use this issue to cause Kerberos to crash, resulting in a denial of service. CVE-2026-11850 It was discovered that Kerberos had vulnerabilities in its NegoEx mechanism...