# CVE-2025-34023: Karel IP Phone IP1211 - Path Traversal

> Live exploitation tracking for CVE-2025-34023 by the CrowdSec Live Exploit Tracker, built from real-world attack data crowdsourced from CrowdSec's global network.

Page: https://tracker.crowdsec.net/cves/CVE-2025-34023

## Key facts

- **Exploitation phase:** Background Noise. Continuous low-level scanning or exploitation attempts are observed, mostly opportunistic and automated.
- **CVSS score:** 8.5
- **Public exploit available:** Yes
- **Affected products:** Karel IP Phone IP1211
- **Weaknesses:** CWE-22 (Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal'))
- **Tags:** iot, management_panel

## Description

A path traversal vulnerability exists in the Karel IP1211 IP Phone's web management panel. The /cgi-bin/cgiServer.exx endpoint fails to properly sanitize user input to the page parameter, allowing remote authenticated attackers to access arbitrary files on the underlying system by using crafted path traversal sequences. Exploitation evidence was observed by the Shadowserver Foundation on 2025-02-02 UTC.

## CrowdSec analysis

[CVE-2025-34023](https://euvd.enisa.europa.eu/vulnerability/CVE-2025-34023) is a high-severity path traversal vulnerability in the Karel IP1211 IP Phone's web management panel, specifically affecting the /cgi-bin/cgiServer.exx endpoint. This flaw allows remote authenticated attackers to access arbitrary files on the device by manipulating the page parameter with crafted path traversal sequences. Successful exploitation could lead to unauthorized disclosure of sensitive system files, potentially facilitating further attacks or compromising device integrity.

CrowdSec has been tracking this vulnerability and its exploits since 8th of April 2026.

According to CrowdSec data, while opportunistic exploitation dominates, a portion of threat actors trying to exploit CVE-2025-34023 apply basic targeting methods such as port or service detection. This indicates emerging patterns of selective targeting.
CrowdSec network telemetry also shows that exploitation of CVE-2025-34023 has significantly declined over the past week. Attack volumes are well below the long-term average, suggesting attackers are rapidly losing interest. The vulnerability appears to be falling out of active use across most threat landscapes.

Attackers exploit the `/cgi-bin/cgiServer.exx` endpoint by manipulating the `page` parameter with path traversal sequences (e.g., `../../../../etc/passwd`) to access sensitive files on Karel IP Phone IP1211 devices.

## Timeline

- 2025-06-20: CVE Published. CVE-2025-34023 is published to NVD.
- 2026-04-08: Rule Released. CrowdSec releases a rule to detect CVE-2025-34023 exploitation attempts against the CrowdSec Network.
- 2026-04-08: CrowdSec First Seen. CrowdSec observes in-the-wild exploitation of CVE-2025-34023 for the first time.

## References

- https://vulncheck.com/advisories/selea-targa-ip-camera-path-traversal
- https://cxsecurity.com/issue/WLB-2020100038
- https://web.archive.org/web/20201020023943/https://www.karel.com.tr/urun-cozum/ip1211-ip-telefon
- https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2025/CVE-2025-34023.yaml

## Live exploitation data

The [Live Exploit Tracker page](https://tracker.crowdsec.net/cves/CVE-2025-34023) follows observed exploitation activity for CVE-2025-34023. [Request an API key](https://tracker.crowdsec.net/request-api-key) for full access to its exploitation timeline, attacking IP addresses and blocklists.