Is CVE-2020-12053 in the CISA KEV catalog?

No. CVE-2020-12053 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2020-12053?

CVE-2020-12053 has a CVSS v3 base score of 9.8 (CRITICAL).

What is the EPSS score for CVE-2020-12053?

CVE-2020-12053 has an EPSS score of 0.68% (48th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2020-12053?

Upgrade stealth to 5.0.026 or later.

CVE & CISA-KEV Catalog

CVE-2020-12053

CRITICAL

9.8

CVSS v3

NVD

Description

In Unisys Stealth 3.4.x, 4.x and 5.x before 5.0.026, if certificate-based authorization is used without HTTPS, an endpoint could be authorized without a private key.

CWE-863Incorrect Authorization

How to fix

Remediation Available

stealthNVD

Affected:>= 3.4, < 5.0.026Fixed in:5.0.026CVE-2020-12053derived 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

0.68%probability of exploitation in 30 days

48thpercentile

Moderate risk: more likely to be exploited than 48% of all known CVEs.

References

Vendor Advisory1

public.support.unisys.com

Related Vulnerabilities

Other CWE-863 (Incorrect Authorization) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2023-22518	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2023-38035	Critical	9.8	100%	KEV + Ransom	-
CVE-2022-46169	Critical	9.8	100%	KEV	Fix
CVE-2025-29927	Critical	9.1	100%	-	Fix
CVE-2024-38856	Critical	9.8	99%	KEV	Fix
CVE-2020-36289	Medium	5.3	99%	-	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.