CVE-2024-3913 — An unauthenticated remote attacker can use this vulnerability to change the devi

An unauthenticated remote attacker can use this vulnerability to change the device configuration due to a file writeable for short time after system startup.

01What is this vulnerability?

An unauthenticated remote attacker can use this vulnerability to change the device configuration due to a file writeable for short time after system startup.

02Affected products

Vendor	Product	Versions
Phoenix Contact	CHARX SEC	3000 (1139022) — 0.0.0
Phoenix Contact	CHARX SEC	3050 (1139018) — 0.0.0
Phoenix Contact	CHARX SEC	3100 (1139012) — 0.0.0
Phoenix Contact	CHARX SEC	3150 (1139012) — 0.0.0

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Open the Sigma generator with a pre-filled prompt for this CVE to draft a starting detection in your stack of choice:

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07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2024-08-13T12:30:33.535Z
• Last modified: 2025-01-29T06:04:51.452Z

09References

• cert.vde.com — https://cert.vde.com/en/advisories/VDE-2024-022