CVE-2016-9158
A vulnerability has been identified in SIMATIC S7-300 CPU family (All versions), SIMATIC S7-300 CPU family (incl. related ET200 CPUs and SIPLUS variants) (All versions), SIMATIC S7-400 PN/DP V6 and below CPU family (incl.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (3.03%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
A vulnerability has been identified in SIMATIC S7-300 CPU family (All versions), SIMATIC S7-300 CPU family (incl. related ET200 CPUs and SIPLUS variants) (All versions), SIMATIC S7-400 PN/DP V6 and below CPU family (incl. SIPLUS variants) (All versions), SIMATIC S7-400 PN/DP V7 CPU family (incl. SIPLUS variants) (All versions), SIMATIC S7-400 V6 and earlier CPU family (All versions), SIMATIC S7-400 V7 CPU family (All versions). Specially crafted packets sent to port 80/tcp could cause the affected devices to go into defect mode. A cold restart is required to recover the system.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 3.03% probability · 87th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-20
- Affected
- siemens/simatic s7-300 cpu firmware · siemens/simatic s7-400 cpu firmware
- Source
- productcert@siemens.com
References
- http://www.securityfocus.com/bid/94820
- http://www.securitytracker.com/id/1037434
- https://cert-portal.siemens.com/productcert/pdf/ssa-731239.pdf
- https://ics-cert.us-cert.gov/advisories/ICSA-16-348-05
- https://www.siemens.com/cert/pool/cert/siemens_security_advisory_ssa-731239.pdf
- http://www.securityfocus.com/bid/94820
- http://www.securitytracker.com/id/1037434
- https://cert-portal.siemens.com/productcert/pdf/ssa-731239.pdf
- https://ics-cert.us-cert.gov/advisories/ICSA-16-348-05
- https://www.siemens.com/cert/pool/cert/siemens_security_advisory_ssa-731239.pdf
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.