HOMEVULNERABILITIESCVE-2023-20252
CRITICAL

CVE-2023-20252

CWE-862Published: September 27, 2023· Updated: Jun 17, 2026

9.8
CVSS v3.1

Official Description

A vulnerability in the Security Assertion Markup Language (SAML) APIs of Cisco Catalyst SD-WAN Manager Software could allow an unauthenticated, remote attacker to gain unauthorized access to the application as an arbitrary user.

This vulnerability is due to improper authentication checks for SAML APIs. An attacker could exploit this vulnerability by sending requests directly to the SAML API. A successful exploit could allow the attacker to generate an authorization token sufficient to gain access to the application.

NVD Source

Risk Analysis

Cisco Catalyst SD-WAN Manager Software has a flaw in its SAML API authentication checks. An unauthenticated remote attacker can exploit this to gain unauthorized access to the application as an arbitrary user.

There is no known public exploit, and it is not in KEV. The vulnerability is remotely exploitable with low complexity.

Recommended Action

Apply the relevant patches provided by Cisco for the affected versions 20.9.3.2 and 20.11.1.2.

Generated by the CTIWATCH analysis pipeline from this CVE's metadata (CVSS, EPSS, KEV status, exploit intelligence). Verify against vendor advisories before acting.

Technical Analysis

CVE-2023-20252 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
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

Affected Vendors & Products

Cisco1 product(s)
catalyst sd-wan manager
Source: NVD CPE · 2 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
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Official Patches & Advisories

All References (2)

Quick Facts

CVE IDCVE-2023-20252
CVSS Score9.8 / 10
SeverityCRITICAL
WeaknessCWE-862
CISA KEVNo
Affected1 vendor(s)
PublishedSep 27, 2023

Related CVEs (CWE-862)

Recommended Actions

  • Apply vendor patches immediately
  • Monitor CVE-2023-20252 in threat intel feeds
  • Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWatch. CVE data is provided under the NVD usage policy.