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CVE-2025-27539

27
FAUCET Score

CVE-2025-27539 is a critical SQL injection vulnerability affecting all versions of Siemens TeleControl Server Basic prior to V3.1.2.2. An unauthenticated remote attacker can exploit this flaw by accessing port 8000, bypassing authorization, and gaining full read/write access to the application's database, potentially leading to code execution with NT AUTHORITY\NetworkService privileges. With a CVSS score of 9.8 (Critical), this vulnerability is easily exploitable over the network with low attack complexity and no user interaction required, resulting in complete compromise of confidentiality, integrity, and availability. Currently, there is no public exploit code available (Metasploit, Nuclei, ExploitDB), nor is it listed on the KEV catalog, and it has received minimal community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
< 3.1.2.2CPE matchmatch criteria
cpe:2.3:a:siemens:telecontrol_server_basic:*:*:*:*:*:*:*:*
>= 0, < V3.1.2.2CPE match
cpe:2.3:a:siemens:telecontrol_server_basic:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 4.0

9.3CRITICAL

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
VS Confidentiality
HIGH
VS Integrity
HIGH
VS Availability
HIGH
SS Confidentiality
LOW
SS Integrity
LOW
SS Availability
LOW
Exploit Maturity
NOT_DEFINED
CvssVersion
4.0

Exploit Intelligence

EPSS Score
0.98%
Probability of exploitation in next 30 days
EPSS Percentile
58.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0098 is in the 44th percentile among its peer group of 36,897 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

cert-portal.siemens.com / productcert/html/ssa-443402.html
Vendor Advisory