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CVE

CVE-2023-20078

Multiple vulnerabilities in the web-based management interface of certain Cisco IP Phones could allow an unauthenticated

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.

CRITICAL · CVSS 9.8 EPSS 0.05826
Schedule remediation
  • EPSS percentile: top 9% of all CVEs by exploitation likelihood
  • SSVC automatable: yes - attacks can be scripted at scale
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-121Stack-based Buffer Overflow
CWE-787Out-of-bounds Write
▤

Affected Products & Versions

17
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
▣

Scoring & Timeline

9.8
CRITICAL · CVSS v3.1 · psirt@cisco.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD03 Mar 2023 · 04:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
yes
Technical impact
total
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
⚑

Vendor Advisories

1
cisco-csafcisco-sa-ip-phone-cmd-inj-KMFynVcP
🔗

References & Sources

1
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ip-phone-cmd-inj-KMFynVcPVendor Advisory
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