Unauthenticated arbitrary file upload and command execution in Vembu products
Priority MEDIUM 46CWE-434Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-434.
Summary
In VembuBDR before 4.2.0.1 and VembuOffsiteDR before 4.2.0.1 the http API located at /sgwebservice_o.php action logFilePath allows an attacker to write arbitrary files in the context of the web server process. These files can then be executed remotely by calling the file via the web server.
Why it matters now
EPSS 0.01756 78th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2021-26473
- 2026-10-03 Alias added: GHSA-8x7w-j66g-cfqw
References
More Vembu Bdr Suite vulnerabilities
- TI-2021-08262 Unauthenticated remote command execution with SYSTEM privileges in Vembu products CVSS 3.1CRITICAL 10.0
- TI-2021-08261 Unauthenticated remote command execution in Vembu products CVSS 3.1CRITICAL 9.8
- TI-2021-08264 UNAUTHENTICATED SERVER SIDE REQUEST FORGERY IN VEMBU PRODUCTS CVSS 3.1HIGH 8.8
- TI-2021-19383 An Unquoted Service Path vulnerability exits in Vembu BDR 4.2.0.1 via a specially crafted… CVSS 3.1HIGH 7.8
Sources
- CVE-2021-26473 · CVE Program
- CVE-2021-26473 · NVD
- FIRST EPSS
- GHSA-8x7w-j66g-cfqw · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences