Total
139 CVE
| CVE | Vendors | Products | Updated | CVSS v2 | CVSS v3 |
|---|---|---|---|---|---|
| CVE-2026-40355 | 1 Mit | 1 Kerberos 5 | 2026-07-14 | N/A | 5.9 MEDIUM |
| In MIT Kerberos 5 (aka krb5) before 1.22.3, there is a NULL pointer dereference if an application calls gss_accept_sec_context() 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 parse_nego_message. | |||||
| CVE-2026-40356 | 1 Mit | 1 Kerberos 5 | 2026-07-08 | N/A | 5.9 MEDIUM |
| 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 gss_accept_sec_context() on a system with a NegoEx mechanism registered in /etc/gss/mech. An unauthenticated remote attacker can trigger this, possibly causing the process to terminate in parse_message. | |||||
| CVE-2024-37371 | 2 Debian, Mit | 2 Debian Linux, Kerberos 5 | 2026-06-17 | N/A | 9.1 CRITICAL |
| In MIT Kerberos 5 (aka krb5) before 1.21.3, an attacker can cause invalid memory reads during GSS message token handling by sending message tokens with invalid length fields. | |||||
| CVE-2024-37370 | 1 Mit | 1 Kerberos 5 | 2026-06-17 | N/A | 7.5 HIGH |
| 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. | |||||
| CVE-2024-26462 | 2 Mit, Netapp | 11 Kerberos 5, Active Iq Unified Manager, Cloud Volumes Ontap Mediator and 8 more | 2026-06-17 | N/A | 5.5 MEDIUM |
| Kerberos 5 (aka krb5) 1.21.2 contains a memory leak vulnerability in /krb5/src/kdc/ndr.c. | |||||
| CVE-2024-26461 | 2 Mit, Netapp | 12 Kerberos 5, Active Iq Unified Manager, Cloud Volumes Ontap Mediator and 9 more | 2026-06-17 | N/A | 7.5 HIGH |
| Kerberos 5 (aka krb5) 1.21.2 contains a memory leak vulnerability in /krb5/src/lib/gssapi/krb5/k5sealv3.c. | |||||
| CVE-2024-26458 | 2 Mit, Netapp | 12 Kerberos 5, Active Iq Unified Manager, Cloud Volumes Ontap Mediator and 9 more | 2026-06-17 | N/A | 5.3 MEDIUM |
| Kerberos 5 (aka krb5) 1.21.2 contains a memory leak in /krb5/src/lib/rpc/pmap_rmt.c. | |||||
| CVE-2023-39975 | 1 Mit | 1 Kerberos 5 | 2026-06-17 | N/A | 8.8 HIGH |
| kdc/do_tgs_req.c in MIT Kerberos 5 (aka krb5) 1.21 before 1.21.2 has a double free that is reachable if an authenticated user can trigger an authorization-data handling failure. Incorrect data is copied from one ticket to another. | |||||
| CVE-2023-36054 | 3 Debian, Mit, Netapp | 7 Debian Linux, Kerberos 5, Active Iq Unified Manager and 4 more | 2026-06-17 | N/A | 6.5 MEDIUM |
| lib/kadm5/kadm_rpc_xdr.c in MIT Kerberos 5 (aka krb5) before 1.20.2 and 1.21.x before 1.21.1 frees an uninitialized pointer. A remote authenticated user can trigger a kadmind crash. This occurs because _xdr_kadm5_principal_ent_rec does not validate the relationship between n_key_data and the key_data array count. | |||||
| CVE-2022-42898 | 3 Heimdal Project, Mit, Samba | 3 Heimdal, Kerberos 5, Samba | 2026-06-17 | N/A | 8.8 HIGH |
| PAC parsing in MIT Kerberos 5 (aka krb5) before 1.19.4 and 1.20.x before 1.20.1 has integer overflows that may lead to remote code execution (in KDC, kadmind, or a GSS or Kerberos application server) on 32-bit platforms (which have a resultant heap-based buffer overflow), and cause a denial of service on other platforms. This occurs in krb5_pac_parse in lib/krb5/krb/pac.c. Heimdal before 7.7.1 has "a similar bug." | |||||
| CVE-2022-39028 | 4 Debian, Gnu, Mit and 1 more | 4 Debian Linux, Inetutils, Kerberos 5 and 1 more | 2026-06-17 | N/A | 7.5 HIGH |
| telnetd in GNU Inetutils through 2.3, MIT krb5-appl through 1.0.3, and derivative works has a NULL pointer dereference via 0xff 0xf7 or 0xff 0xf8. In a typical installation, the telnetd application would crash but the telnet service would remain available through inetd. However, if the telnetd application has many crashes within a short time interval, the telnet service would become unavailable after inetd logs a "telnet/tcp server failing (looping), service terminated" error. NOTE: MIT krb5-appl is not supported upstream but is shipped by a few Linux distributions. The affected code was removed from the supported MIT Kerberos 5 (aka krb5) product many years ago, at version 1.8. | |||||
| CVE-2021-37750 | 5 Debian, Fedoraproject, Mit and 2 more | 5 Debian Linux, Fedora, Kerberos 5 and 2 more | 2026-06-17 | 4.0 MEDIUM | 6.5 MEDIUM |
| The Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) before 1.18.5 and 1.19.x before 1.19.3 has a NULL pointer dereference in kdc/do_tgs_req.c via a FAST inner body that lacks a server field. | |||||
| CVE-2021-36222 | 4 Debian, Mit, Netapp and 1 more | 7 Debian Linux, Kerberos 5, Active Iq Unified Manager and 4 more | 2026-06-17 | 5.0 MEDIUM | 7.5 HIGH |
| ec_verify in kdc/kdc_preauth_ec.c in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) before 1.18.4 and 1.19.x before 1.19.2 allows remote attackers to cause a NULL pointer dereference and daemon crash. This occurs because a return value is not properly managed in a certain situation. | |||||
| CVE-2020-28196 | 4 Fedoraproject, Mit, Netapp and 1 more | 11 Fedora, Kerberos 5, Active Iq Unified Manager and 8 more | 2026-06-17 | 5.0 MEDIUM | 7.5 HIGH |
| MIT Kerberos 5 (aka krb5) before 1.17.2 and 1.18.x before 1.18.3 allows unbounded recursion via an ASN.1-encoded Kerberos message because the lib/krb5/asn.1/asn1_encode.c support for BER indefinite lengths lacks a recursion limit. | |||||
| CVE-2019-14844 | 2 Fedoraproject, Mit | 2 Fedora, Kerberos 5 | 2026-06-17 | 5.0 MEDIUM | 7.5 HIGH |
| A flaw was found in, Fedora versions of krb5 from 1.16.1 to, including 1.17.x, in the way a Kerberos client could crash the KDC by sending one of the RFC 4556 "enctypes". A remote unauthenticated user could use this flaw to crash the KDC. | |||||
| CVE-2018-5730 | 4 Debian, Fedoraproject, Mit and 1 more | 6 Debian Linux, Fedora, Kerberos 5 and 3 more | 2026-06-17 | 5.5 MEDIUM | 3.8 LOW |
| MIT krb5 1.6 or later allows an authenticated kadmin with permission to add principals to an LDAP Kerberos database to circumvent a DN containership check by supplying both a "linkdn" and "containerdn" database argument, or by supplying a DN string which is a left extension of a container DN string but is not hierarchically within the container DN. | |||||
| CVE-2018-5729 | 4 Debian, Fedoraproject, Mit and 1 more | 6 Debian Linux, Fedora, Kerberos 5 and 3 more | 2026-06-17 | 6.5 MEDIUM | 4.7 MEDIUM |
| MIT krb5 1.6 or later allows an authenticated kadmin with permission to add principals to an LDAP Kerberos database to cause a denial of service (NULL pointer dereference) or bypass a DN container check by supplying tagged data that is internal to the database module. | |||||
| CVE-2017-7562 | 2 Mit, Redhat | 5 Kerberos 5, Enterprise Linux, Enterprise Linux Desktop and 2 more | 2026-06-17 | 4.0 MEDIUM | 6.5 MEDIUM |
| An authentication bypass flaw was found in the way krb5's certauth interface before 1.16.1 handled the validation of client certificates. A remote attacker able to communicate with the KDC could potentially use this flaw to impersonate arbitrary principals under rare and erroneous circumstances. | |||||
| CVE-2017-15088 | 1 Mit | 1 Kerberos 5 | 2026-06-17 | 7.5 HIGH | 9.8 CRITICAL |
| plugins/preauth/pkinit/pkinit_crypto_openssl.c in MIT Kerberos 5 (aka krb5) through 1.15.2 mishandles Distinguished Name (DN) fields, which allows remote attackers to execute arbitrary code or cause a denial of service (buffer overflow and application crash) in situations involving untrusted X.509 data, related to the get_matching_data and X509_NAME_oneline_ex functions. NOTE: this has security relevance only in use cases outside of the MIT Kerberos distribution, e.g., the use of get_matching_data in KDC certauth plugin code that is specific to Red Hat. | |||||
| CVE-2017-11462 | 2 Fedoraproject, Mit | 2 Fedora, Kerberos 5 | 2026-06-17 | 7.5 HIGH | 9.8 CRITICAL |
| Double free vulnerability in MIT Kerberos 5 (aka krb5) allows attackers to have unspecified impact via vectors involving automatic deletion of security contexts on error. | |||||