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Fencer Vulns
critical 9.8

CVE-2023-20078 in the critical feed json

Cisco IP Phone 6800, 7800, 7900, and 8800 Series Web UI Vulnerabilities

published 2023-03-03 3 y ago modified 2026-06-17 4 mo ago also EUVD-2023-24257

cvss
9.8
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
10.4%
EPSS 10.4% chance of exploitation in 30 days, percentile 95%
public exploits
0
none known

Summary

Multiple vulnerabilities in the web-based management interface of certain Cisco IP Phones could allow an unauthenticated, remote attacker to execute arbitrary code or cause a denial of service (DoS) condition. For more information about these vulnerabilities, see the Details section of this advisory.

Patch / fix

  • cisco ip_phone_6871_firmware 11.3.7sr1
  • cisco ip_phone_6861_firmware 11.3.7sr1
  • cisco ip_phone_6851_firmware 11.3.7sr1
  • cisco ip_phone_6841_firmware 11.3.7sr1
  • cisco ip_phone_6825_firmware 11.3.7sr1
  • cisco ip_phone_7861_firmware 11.3.7sr1
  • cisco ip_phone_7841_firmware 11.3.7sr1
  • cisco ip_phone_7832_firmware 11.3.7sr1
  • cisco ip_phone_7821_firmware 11.3.7sr1
  • cisco ip_phone_7811_firmware 11.3.7sr1
  • cisco ip_phone_8865_firmware 11.3.7sr1
  • cisco ip_phone_8861_firmware 11.3.7sr1
  • cisco ip_phone_8851_firmware 11.3.7sr1
  • cisco ip_phone_8845_firmware 11.3.7sr1
  • cisco ip_phone_8841_firmware 11.3.7sr1
  • cisco ip_phone_8832_firmware 11.3.7sr1
  • cisco ip_phone_8811_firmware 11.3.7sr1

CISA SSVC

Exploitation
none
Automatable
yes
Technical impact
total
Assessed
2 y ago

Exploit prediction

10.35% chance of exploitation in the next 30 days, higher than 95% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

  • Cisco Cisco IP Phones with Multiplatform Firmware

Classification

Weakness

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.