Is CVE-2026-20083 in the CISA KEV catalog?

No. CVE-2026-20083 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2026-20083?

CVE-2026-20083 has a CVSS v3 base score of 6.5 (MEDIUM).

What is the EPSS score for CVE-2026-20083?

CVE-2026-20083 has an EPSS score of 0.09% (1th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix or mitigate CVE-2026-20083?

No published fix for CVE-2026-20083 has been found yet. Check the linked vendor advisories for guidance as it becomes available.

CVE & CISA-KEV Catalog

CVE-2026-20083

MEDIUM

6.5

CVSS v3

NVD

Description

A vulnerability in the Secure Copy Protocol (SCP) server feature of Cisco IOS XE Software could allow an authenticated, local attacker with low privileges to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to improper handling of a malformed SCP request. An attacker could exploit this vulnerability by issuing a crafted command through SSH. A successful exploit could allow the attacker to cause the device to reload unexpectedly, resulting in a DoS condition.

CWE-235

How to fix

No published remediation has been found for this vulnerability's affected products yet.

Mitigation guidance may be in the linked vendor advisories in the References section below.

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CVSS v3 Vector

Exploitability

Attack VectorLocal

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

ScopeChanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

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

Exploit Intelligence

0.09%probability of exploitation in 30 days

1stpercentile

Low risk: more likely to be exploited than 1% of all known CVEs.

References

Other references1

sec.cloudapps.cisco.com

Related Vulnerabilities

Other CWE-235 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2017-20160	Medium	6.3	0.8%	-	Fix
CVE-2024-47651	Medium	6.5	0.4%	-	Fix
CVE-2026-27851	High	7.4	0.4%	-	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 2026-03-26.