CVE-2022-20717

Cisco SD-WAN vEdge Routers Denial of Service Vulnerability

MEDIUM
5.5
CVSS Score
Published: April 15, 2022 at 02:15 PM UTC
Updated: June 17, 2026 at 04:24 AM UTC
2 products affected across 1 vendorSD-WAN vEdge Router1100 Integrated Services Router· also runs on 7 platforms

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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

Description

A vulnerability in the NETCONF process of Cisco SD-WAN vEdge Routers could allow an authenticated, local attacker to cause an affected device to run out of memory, resulting in a denial of service (DoS) condition. This vulnerability is due to insufficient memory management when an affected device receives large amounts of traffic. An attacker could exploit this vulnerability by sending malicious traffic to an affected device. A successful exploit could allow the attacker to cause the device to crash, resulting in a DoS condition.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v ≤ 20.620.7
cisco-1100-integrated-services-router (environment) · citrix-sd-wan-1000 (environment) · citrix-sd-wan-110 (environment) · citrix-sd-wan-1100 (environment) · citrix-sd-wan-2000 (environment) · citrix-sd-wan-210 (environment) · citrix-sd-wan-2100 (environment) · citrix-sd-wan-5100 (environment)

Runs on — not affected

The affected product only carries this flaw when running on these platforms. The platforms themselves are not vulnerable.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-789CWE-770

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