CVE-2011-4877 describes a denial-of-service vulnerability in Siemens WinCC flexible, WinCC V11 (TIA Portal), and various SIMATIC HMI panels. When Transfer Mode is enabled, a remote attacker can crash the HmiLoad application by sending crafted TCP data. This vulnerability has a CVSS score of 7.1, indicating high severity due to its network-based attack vector, low authentication requirements, and complete availability impact. While not actively exploited in the wild (no KEV entry), an ExploitDB entry exists, and there is minimal community discussion or media coverage surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
2004CPE matchmatch criteria | cpe:2.3:a:siemens:wincc_flexible:2004:*:*:*:*:*:*:* | ||
2005CPE matchmatch criteria | cpe:2.3:a:siemens:wincc_flexible:2005:*:*:*:*:*:*:* | ||
2007CPE matchmatch criteria | cpe:2.3:a:siemens:wincc_flexible:2007:*:*:*:*:*:*:* | ||
2008CPE matchmatch criteria | cpe:2.3:a:siemens:wincc_flexible:2008:*:*:*:*:*:*:* | ||
v11CPE matchmatch criteria | cpe:2.3:a:siemens:wincc:v11:*:*:*:*:*:*:* |
CVSS version used by this source: 2.0
AV:N/AC:M/Au:N/C:N/I:N/A:C
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.