CVE-2015-2177

HIGHNVD 7.5Elevated

7.5

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 v3: 7.5
EG Score: 0.0(none)
EPSS: 97.6%
KEV: Not listed

Published

March 7, 2015

Last Modified

June 2, 2026

References (12)

cve@mitrehttp://www.securityfocus.com/bid/72973
cve@mitrehttp://www.securitytracker.com/id/1032040
cve@mitrehttp://www.siemens.com/innovation/pool/de/forschungsfelder/siemens_security_advisory_ssa-987029.pdf
cve@mitrehttps://cert-portal.siemens.com/productcert/pdf/ssa-987029.pdf
cve@mitrehttps://ics-cert.us-cert.gov/advisories/ICSA-15-064-04
cve@mitrehttps://www.exploit-db.com/exploits/44802/
af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/72973
af854a3a-2127-422b-91ae-364da2661108http://www.securitytracker.com/id/1032040
af854a3a-2127-422b-91ae-364da2661108http://www.siemens.com/innovation/pool/de/forschungsfelder/siemens_security_advisory_ssa-987029.pdf
af854a3a-2127-422b-91ae-364da2661108https://cert-portal.siemens.com/productcert/pdf/ssa-987029.pdf
af854a3a-2127-422b-91ae-364da2661108https://ics-cert.us-cert.gov/advisories/ICSA-15-064-04
af854a3a-2127-422b-91ae-364da2661108https://www.exploit-db.com/exploits/44802/

Vendor Advisories for CVE-2015-2177(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

GHSA-wm75-j4x9-j8hf
GitHub Security AdvisoriesHigh
Siemens SIMATIC S7-300 CPU devices allow remote attackers to cause a denial of service (defect...

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-20Improper Input Validation

Data Freshness Timeline

(refreshed 9× in last 7d / 20× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-06-07 15:22 UTCepss_batch
2026-06-06 13:45 UTCepss_batch
2026-06-05 22:44 UTCepss_batch
2026-06-05 06:08 UTCepss_batch
2026-06-05 06:08 UTCepss_batch
2026-06-04 13:10 UTCepss_batch
2026-06-04 13:09 UTCepss_batch
2026-06-02 20:10 UTCepss_batch
2026-06-02 20:10 UTCepss_batch
2026-05-31 22:28 UTCepss_batch
2026-05-31 22:28 UTCepss_batch
2026-05-31 22:28 UTCepss_batch
2026-05-31 00:14 UTCepss_batch
2026-05-29 13:41 UTCepss_batch
2026-05-28 13:42 UTCepss_batch
2026-05-28 13:42 UTCepss_batch
2026-05-28 13:17 UTCEG score recompute
2026-05-28 13:17 UTCGHSA enrichment
2026-05-27 13:38 UTCepss_batch
2026-05-27 13:38 UTCepss_batch

Publicly available exploits

(1 reference)

Working exploit code is in the public domain (1 Exploit-DB entry). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

Exploit-DBEDB-44802
First seen May 30, 2018
Siemens SIMATIC S7-300 CPU - Remote Denial of Service
Open source ↗

Frequently asked(5)

What is CVE-2015-2177?

CVE-2015-2177 is a high vulnerability published on March 7, 2015. 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.

When was CVE-2015-2177 disclosed?

CVE-2015-2177 was first published in the National Vulnerability Database on March 7, 2015, with the most recent update on June 2, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2015-2177 actively exploited?

CVE-2015-2177 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 97.6% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2015-2177?

CVE-2015-2177 has a CVSS v3 base score of 7.5 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 0.0.

How do I remediate CVE-2015-2177?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2015-2177, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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CVE-2015-2177

📅 Published

🔄 Last Modified

🔗 References (12)

📣 Vendor Advisories for CVE-2015-2177(1)