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CVE-2011-4879
miniweb.exe in the HMI web server in Siemens WinCC flexible 2004, 2005, 2007, and 2008 before SP3; WinCC V11 (aka TIA portal) before SP2…
High8.5EPSS 12.1%
- Published
- Updated
- Reserved
- Assigned by
- certcc
Description
miniweb.exe in the HMI web server in Siemens WinCC flexible 2004, 2005, 2007, and 2008 before SP3; WinCC V11 (aka TIA portal) before SP2 Update 1; the TP, OP, MP, Comfort Panels, and Mobile Panels SIMATIC HMI panels; WinCC V11 Runtime Advanced; and WinCC flexible Runtime does not properly handle URIs beginning with a 0xfa character, which allows remote attackers to read data from arbitrary memory locations or cause a denial of service (application crash) via a crafted POST request.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | High8.5 | AV:N/AC:L/Au:N/C:P/I:N/A:C |
- EPSS (exploitation in 30 days)
- 12.1% · top 3.9% of all CVEs (2 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 8.5.
Weakness
Affected products
n/a
- affected n/a
References (8)
- http://www.us-cert.gov/control_systems/pdf/ICS-ALERT-11-332-02.pdf (opens in a new tab)x_refsource_MISCx_transferred
- http://www.us-cert.gov/control_systems/pdf/ICS-ALERT-11-332-02A.pdf (opens in a new tab)x_refsource_MISCx_transferred
- http://www.siemens.com/corporate-technology/pool/de/forschungsfelder/siemens_security_advisory_ssa-345442.pdf (opens in a new tab)x_refsource_CONFIRMx_transferred
- 18166 (opens in a new tab)exploitx_refsource_EXPLOIT-DBx_transferred
- http://aluigi.org/adv/winccflex_1-adv.txt (opens in a new tab)x_refsource_MISCx_transferred
- 77384 (opens in a new tab)vdb-entryx_refsource_OSVDBx_transferred
- simatic-miniweb-dos(71453) (opens in a new tab)vdb-entryx_refsource_XFx_transferred
- http://www.us-cert.gov/control_systems/pdf/ICSA-12-030-01.pdf (opens in a new tab)x_refsource_MISCx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Record last updated .