Buffer overflow in Siemens Simatic Wincc
CVE-2017-6867
A vulnerability was discovered in Siemens SIMATIC WinCC (V7.3 before Upd 11 and V7.4 before SP1), SIMATIC WinCC Runtime Professional (V13 before SP2 and V14 before SP1), SIMATIC WinCC (TIA Portal) Professional (V13 before SP2 and V14 before SP1) that could allow an authenticated, remote attacker who is member of the "administrators" group to crash services by sending specially crafted messages to the DCOM interface.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.9 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.019 (79.6th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 80th percentile — 79.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.018 · newest: 0.019 · change: +0.001
Affected products
- Siemens Simatic Wincc — versions 7.3, 7.4
- Siemens Simatic Wincc Runtime — versions 13, 14
- Siemens Simatic Wincc \(Tia Portal\) — versions 13, 14
- Siemens Simatic Wincc — versions Siemens SIMATIC WinCC
Weakness classification (CWE)
References
- www.securityfocus.com/bid/98368 (VDB Entry, Third Party Advisory, vdb-entry)
- cert-portal.siemens.com/productcert/pdf/ssa-523365.pdf
- www.siemens.com/cert/pool/cert/siemens_security_advisory_ssa-156872.pdf (Vendor Advisory)
Frequently asked questions
- What is CVE-2017-6867?
- CVE-2017-6867 is a medium-severity vulnerability in Siemens Simatic Wincc, classified under Out-of-bounds Write. CVSS score: 4.9/10. Published 2017-05-11.
- How severe is CVE-2017-6867?
- Medium severity. CVSS v3 base score is 4.9 out of 10.