Cyber Resilience

CVE-2023-20002

SSRF in Cisco Telepresence Collaboration Endpoint 8.1.1 … 9.9.4

SSRF
Published
20 January 2023
Modified
21 November 2024
Patch / advisory
View advisory
CVSS Score v3.1 4.4
Click a component to see what it means
Raw vectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
EPSS Score 0.0016 6th percentile
Risk Priority 34 floored blend · peak EPSS

Summary

CVE-2023-20002 is a medium-severity SSRF (CWE-918) vulnerability in Cisco Telepresence Collaboration Endpoint. Its CVSS base score is 4.4 (Medium).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 6th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

OWASP Top 10 for Web (2025)

A01:2025 Broken Access Control

EU & UK References

Vulnerability Data

A vulnerability in Cisco TelePresence CE and RoomOS Software could allow an authenticated, local attacker to bypass access controls and conduct an SSRF attack through an affected device. This vulnerability is due to improper validation of user-supplied input. An attacker…

more

could exploit this vulnerability by sending a crafted request to a user of the web application. A successful exploit could allow the attacker to send arbitrary network requests that are sourced from the affected system.

CWE(s)
CWE-918

Related Threats

MITRE ATT&CK Enterprise Techniques

T1190 Exploit Public-Facing Application Initial Access
Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.
attack.mitre.org →
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2023-20090Same product: Cisco Roomos
CVE-2023-20094Same product: Cisco Roomos
CVE-2026-20230Same vendor: Cisco
CVE-2024-20332Same vendor: Cisco
CVE-2024-20404Same vendor: Cisco
CVE-2023-20004Same product: Cisco Roomos
CVE-2025-20329Same product: Cisco Roomos
CVE-2025-20288Same vendor: Cisco
CVE-2023-20091Same product: Cisco Roomos
CVE-2026-20035Same vendor: Cisco

Affected Assets

cisco
roomos
10.11.3.0, 10.11.5.2, 10.15.3.0, 10.3.2.0, 10.3.4.0
cisco
telepresence collaboration endpoint
8.1.1, 8.3.0, 8.3.5, 9.0.1, 9.1.1

Mitigating Controls

Control response

Prevent
Stop it (NIST 800-53)

—

Detect
Catch it (NIST detect / respond)

—

Harden
Shrink the surface (DISA STIG)

—

Validate
Prove the fix (OWASP ASVS)
  • V1.3.6
  • V1.5.3
  • V5.3.2
  • V10.4.7

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

CA-8 Penetration Testing
addresses: CWE-918

Penetration testing attempts server-side requests to internal resources, identifying SSRF weaknesses for remediation.

SC-7 Boundary Protection
addresses: CWE-918

Outbound connections to external resources can be monitored and limited at the boundary, reducing SSRF impact.

SI-10 Information Input Validation
addresses: CWE-918

Validates server-side URLs and resource references to block SSRF attempts.

SI-4 System Monitoring
addresses: CWE-918

Detects server-side request forgery through monitoring of unexpected outbound connections.

Mitigating Controls (NIST CSF 2.0) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.

PR.PS-06 mostly match
prevents

Secure development practices directly include input validation and destination allow-listing that prevent SSRF.

DE.CM-09 partial match
prevents

Runtime monitoring of web applications and services can detect anomalous outbound requests indicative of SSRF.

ID.RA-01 partial match
prevents

Vulnerability identification processes can discover and record SSRF flaws in web applications.

PR.IR-01 partial match
prevents

Network segmentation and egress controls can limit the damage from successful SSRF requests.

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

A.5.7 Threat intelligence partial match
prevents

Operational threat data describing SSRF campaigns can be used to tighten outbound-request allow-lists and detection rules before attackers exploit them.

References