Security readout for executives and security teams
Plain-English summary
This issue affects KMC Controls BAC-5051E building automation devices running firmware before E0.2.0.2. A remote attacker could bypass intended access controls and read a configuration file. The public record does not provide CVSS scoring, exploitation evidence, or technical vectors, so urgency depends heavily on whether these devices are reachable from untrusted networks.
Executive priority
Prioritize identification and containment if BAC-5051E devices support building operations. The known impact is information exposure, not direct control takeover in the supplied sources, but configuration disclosure can aid follow-on attacks.
Technical view
CVE-2016-4495 is an access restriction bypass in KMC Controls BAC-5051E firmware before E0.2.0.2. The stated impact is remote unauthorized reading of a configuration file through unspecified vectors. The source bundle does not identify CWE, CVSS, authentication requirements, file contents, or exploit prerequisites beyond remote attack capability.
Likely exposure
Likely exposure is limited to organizations using KMC Controls BAC-5051E devices with firmware before E0.2.0.2, especially if management interfaces are network-accessible from less trusted segments.
Exploitation context
The source bundle does not show CISA KEV listing or active exploitation. The vulnerability is old, published in 2016, but unresolved legacy building-control devices can remain exposed for years.
Researcher notes
The public description is sparse: vectors are unspecified, affected CPEs are not populated, and no CVSS or CWE is supplied. Treat conclusions beyond remote config-file read as unproven unless confirmed from the advisory or vendor documentation.
Mitigation direction
- Inventory KMC Controls BAC-5051E devices and record firmware versions.
- Upgrade affected devices to firmware E0.2.0.2 or later where vendor-supported.
- Restrict device management access to trusted administration networks only.
- Check current vendor or CISA guidance before applying operational changes.
Validation and detection
- Confirm whether any BAC-5051E devices run firmware before E0.2.0.2.
- Review network paths to ensure devices are not reachable from untrusted networks.
- Check logs for unexpected configuration file access where logging exists.
- Document compensating controls for devices that cannot be upgraded.
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
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CVE-2016-4495 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
- https://ics-cert.us-cert.gov/advisories/ICSA-16-126-01CVE 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.