Assessment
Why it matters
EPSS is 1.4%; technical severity is CVSS 8.7.
The audit file upload handler does not sanitize filenames, allowing shell metacharacters to flow into system command execution. This input validation failure enables command injection when chained with a related vulnerability.
Who should care
- Teams operating Security Center
- Vulnerability and exposure management teams
- Security operations teams monitoring exploitation activity
Response plan
What I would do
- Confirm whether Security Center is present in the environment.
- Identify affected versions and establish whether vulnerable services are exposed or reachable.
- Tenable Security patch Tns 2026 19
- Review relevant security telemetry for evidence of attempted or successful exploitation.
- Document the remediation decision and track it to verified completion.
Treatment intelligence
Remediation intelligence
Vendor sources are listed before government and third-party guidance. Confirm product applicability and change prerequisites before deployment.
Verification noteAutomated link verification has not completed for this guidance yet.
Technical details
- CVSS vector
- CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/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
- CWE
- CWE-78
- Affected versions
- Tenable Security Center (Start Including 6.6.0, End Including 6.8.0)
- Fixed versions
- No explicit fixed version is currently recorded.
- Published
- 21 July 2026
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
Signal timeline
- CVE published
- Latest EPSS score: 1.4%
- Signal calculated at 14