VulnerabilityModified
CVE-2017-11368
In MIT Kerberos 5 (aka krb5) 1.7 and later, an authenticated attacker can cause a KDC assertion failure by sending invalid S4U2Self or S4U2Proxy requests.
MEDIUM 6.5EPSS 2.40%
Does this matter?
Lower severity and a low EPSS score (2.40%). Track it; it rarely justifies an emergency change on its own.
Description
In MIT Kerberos 5 (aka krb5) 1.7 and later, an authenticated attacker can cause a KDC assertion failure by sending invalid S4U2Self or S4U2Proxy requests.
- CVSS 3.0
- 6.5 MEDIUMCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 2.40% probability · 84th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-617
- Affected
- fedoraproject/fedora · mit/kerberos · mit/kerberos 5
- Source
- cve@mitre.org
EPSS 2.4% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://www.securityfocus.com/bid/100291Third Party Advisory, VDB Entry
- https://access.redhat.com/errata/RHSA-2018:0666
- https://github.com/krb5/krb5/commit/ffb35baac6981f9e8914f8f3bffd37f284b85970Patch, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4HNWXM6OQU7G23MG7XWIOBRGP43ECLDT/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UBUTXMNZWMVJLQ4NDX5OQFPUVCJRLV3W/
- http://www.securityfocus.com/bid/100291Third Party Advisory, VDB Entry
- https://access.redhat.com/errata/RHSA-2018:0666
- https://github.com/krb5/krb5/commit/ffb35baac6981f9e8914f8f3bffd37f284b85970Patch, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4HNWXM6OQU7G23MG7XWIOBRGP43ECLDT/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UBUTXMNZWMVJLQ4NDX5OQFPUVCJRLV3W/
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.