Is CVE-2018-16857 in the CISA KEV catalog?

No. CVE-2018-16857 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2018-16857?

CVE-2018-16857 has a CVSS v3 base score of 7.4 (HIGH).

What is the EPSS score for CVE-2018-16857?

CVE-2018-16857 has an EPSS score of 2.30% (81th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2018-16857?

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

CVE & CISA-KEV Catalog

CVE-2018-16857

HIGHEPSS 81th pctl

7.4

CVSS v3

NVD

Description

Samba from version 4.9.0 and before version 4.9.3 that have AD DC configurations watching for bad passwords (to restrict brute forcing of passwords) in a window of more than 3 minutes may not watch for bad passwords at all. The primary risk from this issue is with regards to domains that have been upgraded from Samba 4.8 and earlier. In these cases the manual testing done to confirm an organisation's password policies apply as expected may not have been re-done after the upgrade.

CWE-358

How to fix

Remediation Available

sambaDebian

Fixed in:2:4.9.2+dfsg-2CVE-2018-16857

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 ComplexityHigh

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityNone

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

Exploit Intelligence

2.30%probability of exploitation in 30 days

81stpercentile

Elevated risk: more likely to be exploited than 81% of all known CVEs.

References

Patch1

samba.org

Mitigation1

bugzilla.redhat.com

Third-Party Advisory2

Other references1

security.gentoo.org

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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.