Is CVE-2018-16853 in the CISA KEV catalog?

No. CVE-2018-16853 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2018-16853?

CVE-2018-16853 has a CVSS v3 base score of 7.5 (HIGH).

What is the EPSS score for CVE-2018-16853?

CVE-2018-16853 has an EPSS score of 3.08% (86th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2018-16853?

Upgrade samba on debian 11 to 2:4.9.2+dfsg-2 or later.

CVE & CISA-KEV Catalog

CVE-2018-16853

HIGHEPSS 86th pctl

7.5

CVSS v3

NVD

Description

Samba from version 4.7.0 has a vulnerability that allows a user in a Samba AD domain to crash the KDC when Samba is built in the non-default MIT Kerberos configuration. With this advisory the Samba Team clarify that the MIT Kerberos build of the Samba AD DC is considered experimental. Therefore the Samba Team will not issue security patches for this configuration. Additionally, Samba 4.7.12, 4.8.7 and 4.9.3 have been issued as security releases to prevent building of the AD DC with MIT Kerberos unless --with-experimental-mit-ad-dc is specified to the configure command.

CWE-400Resource Exhaustion

How to fix

Remediation Available

sambaDebian

Fixed in:2:4.9.2+dfsg-2CVE-2018-16853

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Exploit Intelligence

3.08%probability of exploitation in 30 days

86thpercentile

Elevated risk: more likely to be exploited than 86% of all known CVEs.

References

Vendor Advisory1

samba.org

Third-Party Advisory3

Other references1

security.gentoo.org

Related Vulnerabilities

Other CWE-400 (Resource Exhaustion) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2023-44487	High	7.5	100%	KEV	Fix
CVE-2021-44228	Critical	10.0	100%	KEV + Ransom	Fix
CVE-2011-3192	High	7.8	99%	-	Fix
CVE-2019-11478	Medium	5.3	95%	-	Fix
CVE-2024-25617	Medium	5.3	89%	-	Fix
CVE-2018-1000115	High	7.5	89%	-	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.