Medium [CVE-2026-20078 +1] Cisco Unity Connection Arbitrary File Download Vulnerabilities
This medium-severity Cisco advisory covers CVE-2026-20078 and CVE-2026-20081 affecting Unity Connection.
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Summary
Multiple vulnerabilities in Cisco Unity Connection could allow an authenticated, remote attacker to download arbitrary files from an affected system. To exploit these vulnerabilities, the attacker must have valid administrative credentials.
These vulnerabilities are due to improper sanitization of user input to the web-based management interface. An attacker could exploit these vulnerabilities by sending a crafted HTTPS request.
A successful exploit could allow the attacker to download arbitrary files from an affected system.
Cisco has released software updates that address these vulnerabilities. There are no workarounds that address these vulnerabilities.
- Scope: At the time of publication, these vulnerabilities affected Cisco Unity Connection, regardless of device configuration.
- 12.5 and earlier — Migrate to a fixed release
- Release 14 (first fixed: 14SU6)
- Release 15 (first fixed: 15SU4)
Official advisory · high-confidence parse· fetched 2 months ago·verify at source
- 14SU6
- 15SU4
Official advisory · high-confidence parse· fetched 2 months ago·verify at source
Mitigation checklist
- Upgrade to the first fixed release for your train per the Fixed Releases table in this advisory.
- Release 12.5 and earlier: migrate to a fixed release.
- Release 14: upgrade to 14SU6.
- Release 15: upgrade to 15SU4.
- There are no workarounds that address these vulnerabilities.
Official advisory · high-confidence parse· fetched 2 months ago·verify at source
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