CVE-2015-2177
Siemens SIMATIC S7-300 CPU devices allow remote attackers to cause a denial of service (defect-mode transition) via crafted packets on (1) TCP port 102 or (2) Profibus.
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 34.3%, higher than 98% of all known CVEs. Patch or mitigate before the next change window.
Description
Siemens SIMATIC S7-300 CPU devices allow remote attackers to cause a denial of service (defect-mode transition) via crafted packets on (1) TCP port 102 or (2) Profibus.
- 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
- 34.34% probability · 98th percentile
- Public exploits
- 1 in Exploit-DB · first 30 May 2018
- CISA KEV
- Not listed
- Weakness
- CWE-20
- Affected
- siemens/simatic s7-300 cpu firmware · siemens/simatic s7-300 cpu
- Source
- cve@mitre.org
EPSS 34.3% since 4 November 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
Public exploits (1)
Entries in Exploit-DB that cite this CVE. Links go to the Exploit-DB page and to the file in the public repository; nothing is hosted here. A verified tick means the Exploit-DB team confirmed the exploit works against the stated version.
References
- http://www.securityfocus.com/bid/72973
- http://www.securitytracker.com/id/1032040Third Party Advisory, VDB Entry
- http://www.siemens.com/innovation/pool/de/forschungsfelder/siemens_security_advisory_ssa-987029.pdfVendor Advisory
- https://cert-portal.siemens.com/productcert/pdf/ssa-987029.pdf
- https://ics-cert.us-cert.gov/advisories/ICSA-15-064-04
- https://www.exploit-db.com/exploits/44802/
- http://www.securityfocus.com/bid/72973
- http://www.securitytracker.com/id/1032040Third Party Advisory, VDB Entry
- http://www.siemens.com/innovation/pool/de/forschungsfelder/siemens_security_advisory_ssa-987029.pdfVendor Advisory
- https://cert-portal.siemens.com/productcert/pdf/ssa-987029.pdf
- https://ics-cert.us-cert.gov/advisories/ICSA-15-064-04
- https://www.exploit-db.com/exploits/44802/
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.