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CVE-2021-1362

28
FAUCET Score

CVE-2021-1362 is a critical vulnerability in the SOAP API endpoint of Cisco Unified Communications Manager, Cisco Unity Connection, and Cisco Prime License Manager, stemming from improper input sanitization. An authenticated, remote attacker can exploit this to execute arbitrary code with root privileges on the underlying Linux operating system. With a CVSS score of 8.8 (High), this vulnerability is easily exploitable over the network with low complexity, requiring only user authentication. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
>= 10.5\(2\), < 11.5\(1\)su9CPE matchmatch criteria
cpe:2.3:a:cisco:prime_license_manager:*:*:*:*:*:*:*:*
>= 10.5\(2\), < 11.5\(1\)su9CPE matchmatch criteria
cpe:2.3:a:cisco:unified_communications_manager:*:*:*:*:-:*:*:*
>= 10.5\(2\), < 11.5\(1\)su9CPE matchmatch criteria
cpe:2.3:a:cisco:unified_communications_manager:*:*:*:*:session_management:*:*:*
>= 12.0\(1\), < 12.5\(1\)su4CPE matchmatch criteria
cpe:2.3:a:cisco:unified_communications_manager:*:*:*:*:-:*:*:*
>= 12.0\(1\), < 12.5\(1\)su4CPE matchmatch criteria
cpe:2.3:a:cisco:unified_communications_manager:*:*:*:*:session_management:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.8HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
2.71%
Probability of exploitation in next 30 days
EPSS Percentile
84.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0271 is in the 83rd percentile among its peer group of 17,829 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.3 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (1)

ciscovendor investigatingvia nvd_reference
View patch

References

tools.cisco.com / security/center/content/CiscoSecurityAdvisory/cisco-sa-cucm-rce-pqVYwyb
Vendor Advisory