5.3
Medium
CVE-2022-20804 A vulnerability in the Cisco Discovery Protocol of Cisco Unified Communications Manager (Unified CM) and Cisco Unified…
Description
A vulnerability in the Cisco Discovery Protocol of Cisco Unified Communications Manager (Unified CM) and Cisco Unified Communications Manager Session Management Edition (Unified CM SME) could allow an unauthenticated, adjacent attacker to cause a kernel panic on an affected system, resulting in a denial of service (DoS) condition. This vulnerability is due to incorrect processing of certain Cisco Discovery Protocol packets. An attacker could exploit this vulnerability by continuously sending certain Cisco Discovery Protocol packets to an affected device. A successful exploit could allow the attacker to cause a kernel panic on the system that is running the affected software, resulting in a DoS condition.
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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