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The RegisterAnother week, another emergency patch as Cisco plugs Unified Comms zero-day

Exploited
Zeroday
First published (updated )
News
The Register

BleepingComputerCisco fixes Unified Communications RCE zero day exploited in attacks

Exploited
Zeroday
First published (updated )
News
BleepingComputer

Cisco Unified Communications ManagerCisco Unified Communications Products Remote Code Execution Vulnerability

Risk 42
Severity
9
First published (updated )
Advisory
cisco-sa-voice-rce-mORhqY4b

Cisco Unified Communications ManagerCisco Unified Communications Products Code Injection Vulnerability

Risk 79
Severity
9.8
Exploited
EPSS
0.68%
First published (updated )
CVE-2026-20045

Cisco Unified Communications ManagerCisco Unified Communications Manager Stored Cross-Site Scripting Vulnerability

Risk 19
Severity
4
First published (updated )
Advisory
cisco-sa-cucm-stored-xss-Fnj66YLy
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Cisco Unified Communications ManagerCisco Unified Communications Manager Static SSH Credentials Vulnerability

Risk 91
Severity
10
First published (updated )
CVE-2025-20309

Cisco FinesseCisco Unified Communications Products Command Injection Vulnerability

Risk 60
Severity
6.7
First published (updated )
CVE-2025-20278

cisco Unified CMCisco Unified Communications Manager Arbitrary File Deletion Vulnerability

Risk 38
Severity
6.5
First published (updated )
Advisory
cisco-sa-cucm-file-delete-N2VPmOnE

Cisco Unified CMCisco Unified Communications Products Access Control Vulnerability

Risk 38
Severity
6.5
First published (updated )
Advisory
cisco-sa-ucm-access-dMKvV2DY

Cisco Unified CMCisco Unified Communications Products Cross-Site Scripting Vulnerability

Risk 38
Severity
6.1
First published (updated )
Advisory
cisco-sa-cucm-xss-RgH7MpKA
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cisco Unified CM and Unified CM SMECisco Unified Communications Products Arbitrary File Read Vulnerability

Risk 38
Severity
6.5
First published (updated )
Advisory
cisco-sa-cucm-imp-afr-YBFLNyzd

cisco Unified CMCisco Unified Communications Products Cross-Site Scripting Vulnerability

Risk 38
Severity
6.1
First published (updated )
Advisory
cisco-sa-cucm-xss-ksKd5yfA

Cisco Unified CMCisco Unified Communications Products Timing Attack Vulnerability

Risk 27
Severity
5.3
First published (updated )
Advisory
cisco-sa-ucm-timing-JVbHECOK

cisco Unified CMCisco Unified Communications Manager Arbitrary File Read Vulnerability

Risk 22
Severity
4.3
First published (updated )
Advisory
cisco-sa-ucm-file-read-qgjhEc3A

cisco Unified CMCisco Unified Communications Products Arbitrary File Read Vulnerability

Risk 38
Severity
6.5
First published (updated )
Advisory
cisco-sa-ucm-file-read-h8h4HEJ3
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Cisco Unified CMCisco Unified Communications Products Cross-Site Scripting Vulnerability

Risk 38
Severity
6.1
First published (updated )
Advisory
cisco-sa-cucm-xss-6MCe4kPF

cisco Unified CMCisco Unified Communications Products Arbitrary File Write Vulnerability

Risk 30
Severity
4.9
First published (updated )
Advisory
cisco-sa-cucm-arb-write-74QzruUU

cisco Unified CMCisco Unified Communications Products Cross-Site Request Forgery Vulnerability

Risk 42
Severity
5.7
First published (updated )
Advisory
cisco-sa-ucm-csrf-jrKP4eNT

cisco Unified CMCisco Unified Communications Products Denial of Service Vulnerability

Risk 32
Severity
5.3
First published (updated )
Advisory
cisco-sa-ucm-dos-zHS9X9kD

Cisco Webex Meetings ServerApache log4j2 log messages substitution (CVE-2021-44228)

Risk 100
Severity
10
Exploited
Zeroday
First published (updated )
CVE-2021-44228
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cisco Unified CM and Unified CM SME ReleasesCisco Unified Communications Products Remote Code Execution Vulnerability

Risk 79
Severity
8.8
First published (updated )
Advisory
cisco-sa-cucm-rce-pqVYwyb

Cisco Unified Communications Manager IM & Presence Service ReleasesCisco Unified Communications Products Vulnerabilities

Risk 38
Severity
6.5
First published (updated )
Advisory
cisco-sa-imp-trav-inj-dM687ZD6

Cisco Unified CMCisco Unified Communications Products Information Disclosure Vulnerability

Risk 22
Severity
4.3
First published (updated )
Advisory
cisco-sa-cucm-logging-6QSWKRYz

Cisco Unified CMCisco Unified Communications Products Cross-Site Scripting Vulnerability

Risk 38
Severity
6.1
First published (updated )
Advisory
cisco-sa-cucm-cuc-imp-xss-OWuSYAp

Cisco UCM and SME MajorCisco Unified Communications Manager Path Traversal Vulnerability

Risk 43
Severity
7.5
First published (updated )
Advisory
cisco-sa-cucm-taps-path-trav-pfsFO93r
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Cisco Unified Communications Manager MajorCisco Unified Communications Manager Session Initiation Protocol Denial of Service Vulnerability

Risk 49
Severity
8.6
First published (updated )
Advisory
cisco-sa-20190703-cucm-dos

Cisco Unified Communications ManagerXSS

Risk 38
Severity
6.1
First published (updated )
CVE-2017-12258

Cisco Unified Communications ManagerInput Validation

Risk 23
Severity
4.3
First published (updated )
CVE-2017-6785

Cisco Unified Communications ManagerXSS

Risk 38
Severity
6.1
First published (updated )
CVE-2017-6654

Cisco Unified Communications ManagerBuffer Overflow

Risk 44
Severity
7.8
First published (updated )
CVE-2017-3808
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