Is CVE-2018-10896 in the CISA KEV catalog?

No. CVE-2018-10896 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2018-10896?

CVE-2018-10896 has a CVSS v3 base score of 7.1 (HIGH).

What is the EPSS score for CVE-2018-10896?

CVE-2018-10896 has an EPSS score of 0.35% (28th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2018-10896?

Upgrade cloud-init to 18.4 or later.

CVE & CISA-KEV Catalog

CVE-2018-10896

HIGH

7.1

CVSS v3

NVD

Description

The default cloud-init configuration, in cloud-init 0.6.2 and newer, included "ssh_deletekeys: 0", disabling cloud-init's deletion of ssh host keys. In some environments, this could lead to instances created by cloning a golden master or template system, sharing ssh host keys, and being able to impersonate one another or conduct man-in-the-middle attacks.

CWE-321

How to fix

Remediation Available

cloud-initNVD

Affected:>= 0.6.2, < 18.4Fixed in:18.4CVE-2018-10896derived from NVD

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 VectorLocal

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityNone

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

Exploit Intelligence

0.35%probability of exploitation in 30 days

28thpercentile

Low risk: more likely to be exploited than 28% of all known CVEs.

References

Patch2

Third-Party Advisory1

bugzilla.redhat.com

Related Vulnerabilities

Other CWE-321 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2025-30406	Critical	9.0	94%	KEV	Fix
CVE-2016-4437	Critical	9.8	93%	KEV	Fix
CVE-2023-32169	Critical	9.8	56%	-	-
CVE-2023-27584	Critical	9.8	34%	-	Fix
CVE-2020-10884	High	8.8	24%	-	-
CVE-2021-4228	Medium	5.8	9.9%	-	-

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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.