SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2010-1321

The kg_accept_krb5 function in krb5/accept_sec_context.c in the GSS-API library in MIT Kerberos 5 (aka krb5) through 1.7.1 and 1.8 before 1.8.2, as used in kadmind and other applications, does not properly check for invalid GSS-API tokens, which allows…

MEDIUM 6.8EPSS 6.88%

Does this matter?

Lower severity and a low EPSS score (6.88%). Track it; it rarely justifies an emergency change on its own.

Description

The kg_accept_krb5 function in krb5/accept_sec_context.c in the GSS-API library in MIT Kerberos 5 (aka krb5) through 1.7.1 and 1.8 before 1.8.2, as used in kadmind and other applications, does not properly check for invalid GSS-API tokens, which allows remote authenticated users to cause a denial of service (NULL pointer dereference and daemon crash) via an AP-REQ message in which the authenticator's checksum field is missing.

CVSS 2.0
6.8 MEDIUMAV:N/AC:L/Au:S/C:N/I:N/A:C
EPSS
6.88% probability · 94th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Weakness
CWE-476
Affected
mit/kerberos 5 · debian/debian linux · canonical/ubuntu linux · oracle/database server · opensuse/opensuse · suse/linux enterprise server · fedoraproject/fedora
Source
cve@mitre.org
EPSS trend
0%5%10%26 October 2026: 6.88%26 October 202626 October 2026

EPSS 6.9% since 26 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

References

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.