CVE-2026-40825 Overview
CVE-2026-40825 is a SQL Injection vulnerability [CWE-89] affecting the accountstatus view's devices parameter. The flaw stems from improper neutralization of special elements within a SQL UPDATE command. A remote attacker with high privileges can exploit the issue to read the entire backend database and modify values in a non-critical table. The advisory was published through CERT@VDE under tracking identifier VDE-2026-044.
Critical Impact
Successful exploitation results in total loss of database confidentiality and partial loss of integrity through unauthorized writes to a non-critical table.
Affected Products
- Product information not disclosed in the published advisory
- Refer to CERT VDE Advisory VDE-2026-044 for vendor-specific details
- No CPE identifiers were assigned at publication time
Discovery Timeline
- 2026-05-27 - CVE-2026-40825 published to NVD
- 2026-05-27 - Last updated in NVD database
Technical Details for CVE-2026-40825
Vulnerability Analysis
The vulnerability resides in the accountstatus view, where the devices parameter is concatenated into a SQL UPDATE statement without proper sanitization. An attacker who already holds high application privileges can inject SQL syntax through this parameter. The injection point is reachable over the network and requires no user interaction. While the entry vector is described as unauthenticated at the SQL injection layer, exploitation requires elevated application privileges according to the CVSS 4.0 metrics.
Root Cause
The root cause is improper neutralization of special elements used in a SQL command, classified under [CWE-89]. The application builds the UPDATE query through string concatenation rather than parameterized queries or prepared statements. User-supplied input from the devices parameter flows directly into the SQL statement, allowing attackers to break out of the intended query context and append arbitrary SQL clauses.
Attack Vector
The attack vector is network-based. An authenticated high-privilege user submits a crafted devices parameter value to the accountstatus view endpoint. The injected payload extends the UPDATE statement with subqueries or UNION-based constructs to extract data from any table in the database. Attackers can also modify values within the non-critical table referenced by the original UPDATE statement. The EPSS score stands at 0.033%, indicating low predicted exploitation activity in the near term.
The vulnerability manifests in the SQL query construction logic for the accountstatus view. No verified proof-of-concept code is publicly available. Refer to the CERT VDE Advisory VDE-2026-044 for vendor technical details.
Detection Methods for CVE-2026-40825
Indicators of Compromise
- Unexpected SQL syntax characters such as single quotes, semicolons, UNION, or -- comment sequences in HTTP request parameters targeting the accountstatus endpoint
- Database audit log entries showing UPDATE statements with unusual WHERE clauses or appended subqueries originating from the application service account
- Anomalous read access patterns against sensitive tables not normally queried by the accountstatus view
Detection Strategies
- Deploy web application firewall rules that inspect the devices parameter for SQL metacharacters and known injection signatures
- Enable database query logging and alert on UPDATE statements containing subqueries or UNION operators from the application user
- Monitor for high-privilege account activity that deviates from established baselines, particularly access to the accountstatus view
Monitoring Recommendations
- Correlate web server access logs with database query logs to identify suspicious parameter values reaching SQL execution
- Track failed and successful authentication events for high-privilege accounts capable of reaching the vulnerable endpoint
- Alert on outbound data transfers following access to the accountstatus view to identify potential exfiltration
How to Mitigate CVE-2026-40825
Immediate Actions Required
- Review the CERT VDE Advisory VDE-2026-044 and apply the vendor-supplied patch when available
- Restrict access to the accountstatus view to a minimal set of administrative accounts
- Rotate credentials for high-privilege accounts that could reach the vulnerable endpoint
- Audit recent database activity for signs of unauthorized SELECT or UPDATE operations
Patch Information
Vendor patch details are tracked under CERT@VDE advisory VDE-2026-044. Administrators should consult the advisory for affected versions and fixed release information. No public exploit code was available at the time of NVD publication on 2026-05-27.
Workarounds
- Block network access to the accountstatus endpoint from untrusted network segments until a patch is applied
- Implement a WAF rule that rejects requests containing SQL metacharacters in the devices parameter
- Reduce the number of accounts with the high-privilege role required to reach the vulnerable view
# Example WAF rule (ModSecurity) blocking SQL metacharacters in devices parameter
SecRule ARGS:devices "@rx (?i)(union|select|update|insert|--|;|/\*)" \
"id:1402026,phase:2,deny,status:403,msg:'Potential SQLi in accountstatus devices parameter'"
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
