CVE & CISA-KEV Catalog

CVE-2021-40119

CRITICALEPSS 82th pctl
9.8
CVSS v3
NVD

Description

A vulnerability in the key-based SSH authentication mechanism of Cisco Policy Suite could allow an unauthenticated, remote attacker to log in to an affected system as the root user. This vulnerability is due to the re-use of static SSH keys across installations. An attacker could exploit this vulnerability by extracting a key from a system under their control. A successful exploit could allow the attacker to log in to an affected system as the root user.

How to fix

Remediation Available
policy suiteNVD
Affected:< 21.1.0Fixed in:21.1.0CVE-2021-40119derived 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 VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionNone
ScopeUnchanged

Impact

ConfidentialityHigh
IntegrityHigh
AvailabilityHigh

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

Exploit Intelligence

2.42%probability of exploitation in 30 days
82ndpercentile

Elevated risk: more likely to be exploited than 82% of all known CVEs.

References

Vendor Advisory1
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CVE-2021-40119 severity badge

Markdown

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HTML

<a href="https://tridentstack.com/cve/CVE-2021-40119"><img src="https://tridentstack.com/cve/badge/CVE-2021-40119.svg" alt="CVE-2021-40119"></a>

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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.