CVE-2018-20217

Exploitation

Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.

SSVC decision

Not assessed by CISA

EPSS probability

1.41% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 72.5% of scored records. A rank, not a probability.

NVD base score

5.3 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

NVD analysis status

Modified. NVD last modified this record on 2026-06-17.

Red Hat severity

Moderate. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2018-12-26 20:00Z7 YR AGO

Last updated

2024-08-05 11:58Z2 YR AGO

Reserved

2018-12-19

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-617Reachable AssertionBase

Data version

5.1

Document digest

75a1fdb432d8a6f3cdcf07555d585ddfcffd486fedad0b0e2468684148f6aa2f

• lists.fedoraproject.orgFEDORA-2018-7db7ccda4dhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2KNHELH4YHNT6H2ESJWX2UIDXLBNGB2O/vendor-advisoryx_refsource_FEDORA
• krbdev.mit.eduhttp://krbdev.mit.edu/rt/Ticket/Display.html?id=8763x_refsource_CONFIRM
• github.comhttps://github.com/krb5/krb5/commit/5e6d1796106df8ba6bc1973ee0917c170d929086x_refsource_CONFIRM
• lists.debian.org[debian-lts-announce] 20190125 [SECURITY] [DLA 1643-1] krb5 security updatehttps://lists.debian.org/debian-lts-announce/2019/01/msg00020.htmlmailing-listx_refsource_MLIST
• security.netapp.comhttps://security.netapp.com/advisory/ntap-20190416-0006/x_refsource_CONFIRM
• lists.debian.org[debian-lts-announce] 20210930 [SECURITY] [DLA 2771-1] krb5 security updatehttps://lists.debian.org/debian-lts-announce/2021/09/msg00019.htmlmailing-listx_refsource_MLIST