Security readout for executives and security teams
Plain-English summary
CVE-2018-11523 describes an arbitrary file upload issue in upload.php on NUUO NVRmini 2 devices. The record says PHP files can be uploaded, which may be serious for an exposed recorder. The bundle does not provide CVSS, authentication requirements, affected firmware versions, or a vendor fix.
Executive priority
Treat as a priority exposure review for surveillance infrastructure, especially internet-facing systems. Business urgency depends on whether NUUO NVRmini 2 devices are present and reachable from untrusted networks.
Technical view
The CVE states upload.php allows arbitrary file upload, including .php files, on NUUO NVRmini 2 devices. Public references include an Exploit-DB entry and a GitHub issue. The available sources do not define CPEs, CWE, firmware ranges, preconditions, post-upload execution behavior, or official remediation.
Likely exposure
Exposure is most likely where NUUO NVRmini 2 devices are deployed, especially if their web interface is reachable from untrusted networks. Exact vulnerable versions are not identified in the provided sources.
Exploitation context
A public Exploit-DB reference exists, so defenders should assume proof-of-concept material is available. The bundle does not show CISA KEV listing or other evidence of active exploitation.
Researcher notes
The source bundle is sparse: no CVSS, CWE, CPE, firmware range, authentication status, or vendor remediation is provided. Do not infer broader NUUO product impact without additional vendor-backed evidence.
Mitigation direction
- Identify any NUUO NVRmini 2 devices in asset inventories.
- Restrict device web interfaces to trusted management networks.
- Check NUUO guidance for affected firmware and available updates.
- Review web upload controls and disable unnecessary exposure where possible.
- Monitor for unexpected PHP or uploaded files on affected devices.
Validation and detection
- Confirm whether upload.php exists on managed NUUO NVRmini 2 devices.
- Verify management interfaces are not internet-accessible.
- Check firmware versions against vendor advisories when available.
- Review device logs for suspicious upload activity.
- Confirm compensating network controls block untrusted access.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
File access behavior lookup
The CVE wording references file access or upload behavior, so file telemetry and web shell review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2018-11523 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- 44794CVE reference · exploit, x_refsource_EXPLOIT-DB
- https://github.com/unh3x/just4cve/issues/1CVE reference · x_refsource_MISC
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.