CVE-2011-4514 describes an authentication bypass vulnerability in the TELNET daemon of various Siemens WinCC and SIMATIC HMI products, including WinCC flexible, WinCC V11 (TIA Portal), and several HMI panels. This flaw allows unauthenticated remote attackers to gain full access to affected systems via a simple TCP session. With a CVSS score of 10.0, this vulnerability is critically severe due to its network-based attack vector, low attack complexity, and complete compromise of confidentiality, integrity, and availability. While no active exploitation, public exploit code, or significant community discussion has been observed, the high severity warrants immediate attention and mitigation.
| 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:L/Au:N/C:C/I:C/A:C
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 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.