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Fencer Vulns
medium 6.8

CVE-2022-20774 json

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

published 2022-04-06 4 y ago modified 2026-06-17 4 mo ago also EUVD-2022-26024

cvss
6.8
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.4%
EPSS 0.4% chance of exploitation in 30 days, percentile 34%
public exploits
0
none known

Summary

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.

Patch / fix

  • cisco ip_phone_6871_firmware 11.3.5
  • cisco ip_phone_6861_firmware 11.3.5
  • cisco ip_phone_6851_firmware 11.3.5
  • cisco ip_phone_6841_firmware 11.3.5
  • cisco ip_phone_6825_firmware 11.3.5
  • cisco ip_phone_7861_firmware 11.3.5
  • cisco ip_phone_7841_firmware 11.3.5
  • cisco ip_phone_7832_firmware 11.3.5
  • cisco ip_phone_7821_firmware 11.3.5
  • cisco ip_phone_7811_firmware 11.3.5
  • cisco ip_phone_8865_firmware 11.3.5
  • cisco ip_phone_8861_firmware 11.3.5
  • cisco ip_phone_8851_firmware 11.3.5
  • cisco ip_phone_8845_firmware 11.3.5
  • cisco ip_phone_8841_firmware 11.3.5
  • cisco ip_phone_8832_firmware 11.3.5
  • cisco ip_phone_8811_firmware 11.3.5

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
2 y ago

Exploit prediction

0.40% chance of exploitation in the next 30 days, higher than 34% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 6.8 CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:H
NVD 3.1 8.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H
NVD 2.0 4.9 AV:N/AC:M/Au:S/C:N/I:P/A:P

Affected products

  • Cisco Cisco IP Phone 7800 Series with Multiplatform Firmware

Classification

Weakness
  • CWE-345 Insufficient Verification of Data Authenticity
  • CWE-352 Cross-Site Request Forgery

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.