Security readout for executives and security teams
Plain-English summary
CVE-2016-20050 is a local denial-of-service issue in Foundstone NetSchedScan 1.0. A person with local access to the application can enter an overly long value in the Hostname/IP field and crash the program. This affects application availability, not confidentiality or data integrity, based on the provided sources.
Executive priority
Treat as a moderate-priority cleanup item. It is not supported by evidence of active exploitation or remote compromise, but legacy tools with public crash exploits increase operational risk and should be removed, restricted, or replaced where practical.
Technical view
NetSchedScan 1.0 has a buffer overflow in the scan Hostname/IP input field, classified as CWE-787. The CVSS 4.0 vector rates availability impact as high, with local attack vector, low complexity, no privileges, and no user interaction. Public references include an Exploit-DB entry and a VulnCheck advisory.
Likely exposure
Exposure appears limited to environments still using Foundstone NetSchedScan 1.0, especially on workstations or lab systems where local users can run the tool. The sources do not indicate remote exploitation or broader product impact.
Exploitation context
The provided sources cite a public Exploit-DB entry, but CISA KEV status is false in the bundle. There is no cited evidence of active exploitation. The likely impact is crashing the local application, causing denial of service.
Researcher notes
Evidence is sparse and points to a local buffer overflow denial of service in one legacy version. No patch information is provided in the source bundle. Avoid assuming code execution or remote reachability unless additional vendor or independent analysis confirms it.
Mitigation direction
- Inventory systems for Foundstone NetSchedScan 1.0.
- Check vendor or trusted advisory sources for updates or retirement guidance.
- Restrict local access to systems where the tool is installed.
- Remove the software if it is unused or unsupported.
Validation and detection
- Confirm whether NetSchedScan 1.0 is installed on managed endpoints.
- Review software inventory and endpoint telemetry for the application name.
- Verify whether users require local access to run the tool.
- Document compensating controls if no vendor fix is available.
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.
CWE-787: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2016-20050 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
- Medium
- CVSS
- 6.9 (4.0)
- Known Exploited
- No
- Published
Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
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 vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N——Primary CVE scoreVulnerability scoring details
Base CVSS 4.0 score
6.9MediumVector: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Source materials
- CVE List V5 sourceCVE List V5
- ExploitDB-39242CVE reference · exploit
- VulnCheck Advisory: NetSchedScan 1.0 Buffer Overflow Denial of ServiceCVE reference · third-party-advisory
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.
Out-of-bounds Write
Out-of-bounds Write represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.