CVE-2026-20035
Multiple vulnerabilities in Cisco Unity Connection could allow a remote attacker to execute arbitrary code on or conduct server-side request forgery (SSRF) attacks through an affected device. For more information about these vulnerabilities, see the Details section of this advisory. Cisco has released software updates that address these vulnerabilities. There are no workarounds that address these vulnerabilities. This advisory is available at the following link: https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-unity-rce-ssrf-hENhuASy Security Impact Rating: High CVE: CVE-2026-20034,CVE-2026-20035
CSIRTS triage
- What
- Multiple vulnerabilities could allow a remote attacker to execute arbitrary code or conduct server-side request forgery attacks.
- Who is affected
- Users of Cisco Unity Connection are affected.
- Urgency
- Remediation is urgent due to the high risk of remote code execution and SSRF attacks.
- Action
- Update to the latest version of Cisco Unity Connection.
AI-assisted analysis generated from the source advisory — verify against the original.
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Exploitation outlook
- Low exploitation risk0.30% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 22% of all EPSS-scored CVEs.
Advisory coverage (1)
- highCisco Unity Connection Remote Code Execution and Server-Side Request Forgery Vulnerabilitiescisco-psirt · 2026-05-06
External references
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