The web server in Siemens WinCC before 7.2, as used in SIMATIC PCS7 before 8.0 SP1 and other products, allows remote attackers to obtain sensitive information or cause a denial of service via a crafted project file.
Conclusion & alert: CVE-2013-0677 is rated Moderate Risk (51.5/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 1.90%). Core evidence: EPSS rose +1.39% over the last day, indicating growing attacker interest. Mandatory action: Review affected assets and schedule remediation.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2026-06-15 | 0.51% | 1.90% | +1.39% |
| 2 | 2025-03-30 | 0.69% | 0.51% | -0.19% |
| 3 | 2025-03-29 | — | 0.69% | — |
Full EPSS history (8 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 5.8 | 2.0 | MEDIUM |
|
8.6 | 4.9 | [email protected] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| siemens | simatic_pcs7 | <= 8.0 | cpe:2.3:a:siemens:simatic_pcs7:*:*:*:*:*:*:*:* |
| siemens | simatic_pcs7 | 7.1 | cpe:2.3:a:siemens:simatic_pcs7:7.1:sp3:*:*:*:*:*:* |
| siemens | wincc | <= 7.1 | cpe:2.3:a:siemens:wincc:*:*:*:*:*:*:*:* |
| siemens | wincc | 5.0 | cpe:2.3:a:siemens:wincc:5.0:*:*:*:*:*:*:* |
| siemens | wincc | 5.0 | cpe:2.3:a:siemens:wincc:5.0:sp1:*:*:*:*:*:* |
| siemens | wincc | 6.0 | cpe:2.3:a:siemens:wincc:6.0:*:*:*:*:*:*:* |
| siemens | wincc | 6.0 | cpe:2.3:a:siemens:wincc:6.0:sp2:*:*:*:*:*:* |
| siemens | wincc | 6.0 | cpe:2.3:a:siemens:wincc:6.0:sp3:*:*:*:*:*:* |
| siemens | wincc | 6.0 | cpe:2.3:a:siemens:wincc:6.0:sp4:*:*:*:*:*:* |
| siemens | wincc | 7.0 | cpe:2.3:a:siemens:wincc:7.0:*:*:*:*:*:*:* |
| siemens | wincc | 7.0 | cpe:2.3:a:siemens:wincc:7.0:sp1:*:*:*:*:*:* |
| siemens | wincc | 7.0 | cpe:2.3:a:siemens:wincc:7.0:sp2:*:*:*:*:*:* |
| siemens | wincc | 7.0 | cpe:2.3:a:siemens:wincc:7.0:sp3:*:*:*:*:*:* |
| URL | Tags |
|---|---|
| http://ics-cert.us-cert.gov/pdf/ICSA-13-079-02.pdf | US Government Resource |
| http://www.siemens.com/corporate-technology/pool/de/forschungsfelder/siemens_security_advisory_ssa-714398.pdf | Vendor Advisory |