Double Free in Wago Pfc200
CVE-2019-5184
An exploitable double free vulnerability exists in the iocheckd service "I/O-Check" functionality of WAGO PFC 200. A specially crafted XML cache file written to a specific location on the device can cause a heap pointer to be freed twice, resulting in a denial of service and potentially code execution. An attacker can send a specially crafted packet to trigger the parsing of this cache file.
Vulnerability class: Double Free
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.008 (58.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 58th percentile — 58.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: 0.000
Affected products
- Wago Pfc200
- Wago Pfc200 Firmware — versions 03.02.02\(14\), 03.02.02(14)
- Wago — versions WAGO PFC200 Firmware version 03.02.02(14)
Weakness classification (CWE)
References
- talosintelligence.com/vulnerability_reports/TALOS-2019-0965 (Exploit, Third Party Advisory, Mitigation)
Frequently asked questions
- What is CVE-2019-5184?
- CVE-2019-5184 is a high-severity vulnerability in Wago Pfc200, classified under Double Free. CVSS score: 7.8/10. Published 2020-03-23.
- How severe is CVE-2019-5184?
- High severity. CVSS v3 base score is 7.8 out of 10.