Buffer overflow in Siemens Simatic Logon
CVE-2017-9938
A vulnerability was discovered in Siemens SIMATIC Logon (All versions before V1.6) that could allow specially crafted packets sent to the SIMATIC Logon Remote Access service on port 16389/tcp to cause a Denial-of-Service condition. The service restarts automatically.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.029 (86.5th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 86th percentile — 86.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.029 · newest: 0.029 · change: 0.000
Affected products
- Siemens Simatic Logon
- Simatic Logon All Versions Before V1.6 — versions SIMATIC Logon All versions before V1.6
Weakness classification (CWE)
References
- www.securityfocus.com/bid/99539 (VDB Entry, Third Party Advisory, vdb-entry)
- www.tenable.com/security/research/tra-2017-34
- www.siemens.com/cert/pool/cert/siemens_security_advisory_ssa-804859.pdf (Vendor Advisory)
Frequently asked questions
- What is CVE-2017-9938?
- CVE-2017-9938 is a high-severity vulnerability in Siemens Simatic Logon, classified under Out-of-bounds Write. CVSS score: 7.5/10. Published 2017-08-08.
- How severe is CVE-2017-9938?
- High severity. CVSS v3 base score is 7.5 out of 10.