CVE & CISA-KEV Catalog

CVE-2021-1393

CRITICALEPSS 81th pctl
9.8
CVSS v3
NVD

Description

Multiple vulnerabilities in Cisco Application Services Engine could allow an unauthenticated, remote attacker to gain privileged access to host-level operations or to learn device-specific information, create diagnostic files, and make limited configuration changes. For more information about these vulnerabilities, see the Details section of this advisory.

CWE-306Missing Authentication for Critical Function

How to fix

Remediation Available
application services engineNVD
Affected:>= 1.1, < 1.1(3e)Fixed in:1.1(3e)CVE-2021-1393derived 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

2.25%probability of exploitation in 30 days
81stpercentile

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

References

Vendor Advisory1

Related Vulnerabilities

Other CWE-306 (Missing Authentication for Critical Function) vulnerabilities, ordered by exploit likelihood. View all

CVESeverityCVSSEPSSExploitedFix
CVE-2017-10271High7.5100%KEV + Ransom-
CVE-2023-42793Critical9.8100%KEV + RansomFix
CVE-2025-3248Critical9.8100%KEVFix
CVE-2022-1388Critical9.8100%KEV + RansomFix
CVE-2021-37415Critical9.8100%KEV-
CVE-2023-21839High7.5100%KEV-
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Markdown

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HTML

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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.