Security readout for executives and security teams
Plain-English summary
CVE-2016-0877 is a denial-of-service issue in Moxa Secure Router EDR-G903 devices running firmware before 3.4.12. A remote attacker can trigger memory consumption through the device ping function, potentially degrading or interrupting network security appliance availability.
Executive priority
Treat as a moderate availability risk for industrial or security network segments. Prioritize exposed or operationally critical routers, because a denial of service on perimeter or segmentation equipment can disrupt monitoring, routing, or remote access workflows.
Technical view
The vulnerability is described as a memory leak reachable via the ping function on Moxa EDR-G903 secure routers before version 3.4.12. The documented impact is denial of service from memory consumption. The source bundle does not provide CVSS, CWE, CPE, authentication requirements, or detailed network exposure conditions.
Likely exposure
Exposure is most likely where Moxa EDR-G903 devices are deployed with firmware older than 3.4.12 and the vulnerable ping function is reachable by untrusted or poorly segmented networks. The provided metadata does not identify other products or versions.
Exploitation context
The source bundle does not indicate active exploitation, and the CVE is not listed as KEV. Public details only support remote denial of service, not code execution, credential theft, or persistence.
Researcher notes
Evidence is sparse. The CVE description and ICS-CERT reference identify a memory leak in the ping function and a version boundary before 3.4.12. No CVSS, CWE, CPE, exploit details, or authentication context are present in the supplied bundle, so validation should focus on asset inventory and vendor advisory review.
Mitigation direction
- Inventory Moxa EDR-G903 routers and record firmware versions.
- Upgrade devices below 3.4.12 according to Moxa or ICS advisory guidance.
- Restrict administrative and diagnostic access to trusted management networks.
- Monitor affected routers for memory pressure, instability, or unexpected restarts.
- Confirm compensating controls where immediate firmware update is not possible.
Validation and detection
- Check whether any EDR-G903 device runs firmware before 3.4.12.
- Verify the ping function is not exposed to untrusted networks.
- Review network paths to device management and diagnostic interfaces.
- Check logs and monitoring for repeated diagnostic requests or memory exhaustion.
- Document patch status and any temporary access restrictions.
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.
CVE-2016-0877 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-16-042-01CVE 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.