Kerberos vulnerabilitiesRanked by how likely they are to be used.
Kerberos is made by Mit. We track 33 published vulnerabilities listed under that exact name, across 102 versions. None of them is on the list of flaws known to be exploited today. Mit lists newer releases under their own names, such as Kerberos 5, so check those pages too.
We keep watching the known-exploited list.
Is Kerberos listed under other names? Yes.
Mit also lists Kerberos under more specific names, such as Kerberos 5 and Kerberos FTP Client. Flaws listed only under those names are counted on their own pages, not here. If you run one of these, open its page for its own exploited flaws.
Which Kerberos vulnerabilities are being exploited?
This is the list that matters most: flaws criminals are using now.
None of Kerberos's published vulnerabilities is on the list of flaws known to be exploited today. We keep watching that list.
Which Kerberos flaws are most likely to be used?
Ranked by the latest exploit-likelihood forecast: the chance each flaw is used in an attack in the next 30 days. A high severity score on its own doesn't tell you that. Flaws shared by many other makers' products are left out.
- 39%CVE-2001-0554Critical
Buffer overflow in BSD-based telnetd telnet daemon on various operating systems allows remote attackers to execute arbitrary commands via a set of options including AYT (Are You There), which is not properly handled...
- 17%CVE-2000-0389Critical
Buffer overflow in krb_rd_req function in Kerberos 4 and 5 allows remote attackers to gain root privileges.
- 12%CVE-2004-0523Critical
Multiple buffer overflows in krb5_aname_to_localname for MIT Kerberos 5 (krb5) 1.3.3 and earlier allow remote attackers to execute arbitrary code as root.
- 7.6%CVE-2009-4212Critical
Multiple integer underflows in the (1) AES and (2) RC4 decryption functionality in the crypto library in MIT Kerberos 5 (aka krb5) 1.3 through 1.6.3, and 1.7 before 1.7.1, allow remote attackers to cause a denial of...
- 6.5%CVE-2014-4342Medium
MIT Kerberos 5 (aka krb5) 1.7.x through 1.12.x before 1.12.2 allows remote attackers to cause a denial of service (buffer over-read or NULL pointer dereference, and application crash) by injecting invalid tokens into...
- 5.6%CVE-2009-0845Medium
The spnego_gss_accept_sec_context function in lib/gssapi/spnego/spnego_mech.c in MIT Kerberos 5 (aka krb5) 1.5 through 1.6.3, when SPNEGO is used, allows remote attackers to cause a denial of service (NULL pointer...
- 4.3%CVE-2009-0844Medium
The get_input_token function in the SPNEGO implementation in MIT Kerberos 5 (aka krb5) 1.5 through 1.6.3 allows remote attackers to cause a denial of service (daemon crash) and possibly obtain sensitive information...
- 4.3%CVE-2003-0138High
Version 4 of the Kerberos protocol (krb4), as used in Heimdal and other packages, allows an attacker to impersonate any principal in a realm via a chosen-plaintext attack.
- 4.3%CVE-2003-0139High
Certain weaknesses in the implementation of version 4 of the Kerberos protocol (krb4) in the krb5 distribution, when triple-DES keys are used to key krb4 services, allow an attacker to create krb4 tickets for...
- 4.2%CVE-2011-0281Medium
The unparse implementation in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) 1.6.x through 1.9, when an LDAP backend is used, allows remote attackers to cause a denial of service (file descriptor...
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1 new flaw affects software Acme tracks
Buffer overflow in BSD-based telnetd telnet daemon on various operating systems allows remote attackers to execute arbitrary commands via a set of options including AYT (Are You There), which is not properly handled by the telrcv function.
- Matched to
- Kerberos on Acme's software list
- What to do
- Plan in the vendor’s update
Sent to the alert recipients Acme chose. Also in the app and to Acme's webhook.
We track 33 published vulnerabilities listed under the name Kerberos, across 102 versions.
None of Kerberos's vulnerabilities is on the list of flaws known to be exploited today.
Mit also lists Kerberos under more specific names, such as Kerberos 5 and Kerberos FTP Client. Flaws listed only under those names are counted on their own pages, not here. Open the release you run to see its own list.
Create a Precursor Intelligence account and track Kerberos. We match it against every published flaw, give each one a risk score from 0 to 100 and keep watching, so you hear about new ones as soon as we know, by email, in the app or by webhook.