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CVE-2022-20774

Cisco IP Phone 6800, 7800, and 8800 Series with Multiplatform Firmware Cross-Site Request Forgery Vulnerability

HIGH
8.1
CVSS Score
Published: April 6, 2022 at 06:12 PM UTC
Updated: June 17, 2026 at 04:25 AM UTC
35 products affected across 1 vendorIP Phone 8861 FirmwareIP Phone 8865 FirmwareIP Phone 8811 Firmware

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Severity
HIGH8.1
Exploit prediction
EPSS 0.4%
SSVC
No known exploit

Description

A vulnerability in the web-based management interface of Cisco IP Phone 6800, 7800, and 8800 Series with Multiplatform Firmware could allow an unauthenticated, remote attacker to conduct a cross-site request forgery (CSRF) attack against a user of the web-based interface of an affected system. This vulnerability is due to insufficient CSRF protections for the web-based management interface of an affected device. An attacker could exploit this vulnerability by persuading an authenticated user of the interface to follow a crafted link. A successful exploit could allow the attacker to perform configuration changes on the affected device, resulting in a denial of service (DoS) condition.

Affected

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

IP Phone 6825 Firmware· Cisco
95%
v < 11.3.5
Affected range stops below 11.3.5, so it looks safe — our inference, not a vendor statement
cisco-ip-phone-6825 (same device)
IP Phone 6841 Firmware· Cisco
95%
v < 11.3.5
Affected range stops below 11.3.5, so it looks safe — our inference, not a vendor statement
cisco-ip-phone-6841 (same device)
IP Phone 6851 Firmware· Cisco
95%
v < 11.3.5
Affected range stops below 11.3.5, so it looks safe — our inference, not a vendor statement
cisco-ip-phone-6851 (same device)
IP Phone 6861 Firmware· Cisco
95%
v < 11.3.5
Affected range stops below 11.3.5, so it looks safe — our inference, not a vendor statement
cisco-ip-phone-6861 (same device)
IP Phone 6871 Firmware· Cisco
95%
v < 11.3.5
Affected range stops below 11.3.5, so it looks safe — our inference, not a vendor statement
cisco-ip-phone-6871 (same device)
IP Phone 7811 Firmware· Cisco
95%
v < 11.3.5
Affected range stops below 11.3.5, so it looks safe — our inference, not a vendor statement
cisco-ip-phone-7811 (same device)
IP Phone 7821 Firmware· Cisco
95%
v < 11.3.5
Affected range stops below 11.3.5, so it looks safe — our inference, not a vendor statement
cisco-ip-phone-7821 (same device)
IP Phone 7832 Firmware· Cisco
95%
v < 11.3.5
Affected range stops below 11.3.5, so it looks safe — our inference, not a vendor statement
cisco-ip-phone-7832 (same device)
IP Phone 7841 Firmware· Cisco
95%
v < 11.3.5
Affected range stops below 11.3.5, so it looks safe — our inference, not a vendor statement
cisco-ip-phone-7841 (same device)
IP Phone 7861 Firmware· Cisco
95%
v < 11.3.5
Affected range stops below 11.3.5, so it looks safe — our inference, not a vendor statement
cisco-ip-phone-7861 (same device)

Remediation

No guide yet

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

Patch and advisory references

References (1)

Vendor Advisoryx_refsource_CISCO
Source: [email protected]
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-voip-phone-csrf-K56vXvVx

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

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

CVSS

8.1HIGH[email protected]
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
NONE
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-345CWE-352

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