4.9
Medium
CVE-2022-20789 A vulnerability in the software upgrade process of Cisco Unified Communications Manager (Unified CM) and Cisco Unified…
Description
A vulnerability in the software upgrade process of Cisco Unified Communications Manager (Unified CM) and Cisco Unified Communications Manager Session Management Edition (Unified CM SME) could allow an authenticated, remote attacker to write arbitrary files on the affected system. This vulnerability is due to improper restrictions applied to a system script. An attacker could exploit this vulnerability by using crafted variables during the execution of a system upgrade. A successful exploit could allow the attacker to overwrite or append arbitrary data to system files using root-level privileges.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Cisco Unified Communications Manager | Versions not published |
Other CVEs of Cisco Unified Communications Manager
The 62 CVEs of Cisco Unified Communications Manager →
CVE-2026-76419
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6.1
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CVE-2026-76481
As part of Cisco's ongoing commitment to proactive security and product quality, engineering teams for Cisco Emergency…
7.5
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CVE-2026-76487
A vulnerability in Cisco Unified Communications Manager (Unified CM) and Cisco Unified Communications Manager Session…
5.3
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CVE-2026-76479
As part of Cisco's ongoing commitment to proactive security and product quality, engineering teams for Cisco Emergency…
7.8
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