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5.3 Medium

CVE-2025-20335 A vulnerability in the directory permissions of Cisco Desk Phone 9800 Series, Cisco IP Phone 7800 and 8800 Series, and…

Description

A vulnerability in the directory permissions of Cisco Desk Phone 9800 Series, Cisco IP Phone 7800 and 8800 Series, and Cisco Video Phone 8875 could allow an unauthenticated, remote attacker to write arbitrary files on an affected device. This vulnerability is due to a lack of proper authentication controls. An attacker could exploit this vulnerability by sending a crafted request to an affected device. A successful exploit could allow the attacker to perform arbitrary file writes to specific directories in the underlying operating system. Note: To exploit this vulnerability, Web Access must be enabled on the phone. Web Access is disabled by default.

Affected products and versions

Product Affected versions Fixed in
Cisco Session Initiation Protocol (SIP) Software 11-0-1MSR1-1 No fix stated

References

Timeline

  1. Published
  2. Last modified

Other CVEs of Cisco Session Initiation Protocol (SIP) Software

The 14 CVEs of Cisco Session Initiation Protocol (SIP) Software →
CVE-2026-20281 A vulnerability in Cisco Desk Phone 9800 Series, Cisco IP Phone 7800 and 8800 Series, and Cisco Video Phone 8875 that… 7.5 High CVE-2025-20351 A vulnerability in the web UI of Cisco Desk Phone 9800 Series, Cisco IP Phone 7800 and 8800 Series, and Cisco Video… 6.1 Medium CVE-2025-20350 A vulnerability in the web UI of Cisco Desk Phone 9800 Series, Cisco IP Phone 7800 and 8800 Series, and Cisco Video… 7.5 High CVE-2025-20336 A vulnerability in the directory permissions of Cisco Desk Phone 9800 Series, Cisco IP Phone 7800 and 8800 Series, and… 5.3 Medium
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