Buffer overflow in Codesys Web Server
CVE-2017-6025
A Stack Buffer Overflow issue was discovered in 3S-Smart Software Solutions GmbH CODESYS Web Server. The following versions of CODESYS Web Server, part of the CODESYS WebVisu web browser visualization software, are affected: CODESYS Web Server Versions 2.3 and prior. A malicious user could overflow the stack buffer by providing overly long strings to functions that handle the XML. Because the function does not verify string size before copying to memory, the attacker may then be able to crash the application or run arbitrary code.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.020 (80.0th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 80th percentile — 80.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.020 · newest: 0.020 · change: 0.000
Affected products
- Codesys Web Server
- 3s-Smart Software Solutions Gmbh Codesys Web Server — versions 3S-Smart Software Solutions GmbH CODESYS Web Server
Weakness classification (CWE)
References
- www.securityfocus.com/bid/97174 (VDB Entry, Third Party Advisory, vdb-entry)
- ics-cert.us-cert.gov/advisories/ICSA-17-087-02 (US Government Resource, Third Party Advisory)
Frequently asked questions
- What is CVE-2017-6025?
- CVE-2017-6025 is a critical-severity vulnerability in Codesys Web Server, classified under Stack-based Buffer Overflow. CVSS score: 9.8/10. Published 2017-05-19.
- How severe is CVE-2017-6025?
- Critical severity. CVSS v3 base score is 9.8 out of 10.