Security readout for executives and security teams
Plain-English summary
CVE-2020-36881 affects Flexsense DiskBoss 7.7.14. A malformed directory path entered into the Add Input Directory field can trigger a buffer overflow and potentially run code on the system. This is serious for machines where this old DiskBoss version is installed, but the provided sources describe local exploitation, not internet-wide remote exposure.
Executive priority
Treat as a high-priority hygiene and exposure-reduction item for any environment using DiskBoss 7.7.14. It is not presented as a mass remote threat, but successful exploitation could compromise the local system. Prioritize confirmation, removal or upgrade planning, and access restriction for affected machines.
Technical view
The issue is a CWE-119 buffer overflow in DiskBoss 7.7.14’s Input Directory component. The CVSS v4.0 score is 8.6 with local attack vector and high confidentiality, integrity, and availability impact. Public exploit information exists in Exploit-DB, but the source bundle does not show CISA KEV listing or confirmed active exploitation.
Likely exposure
Exposure appears limited to endpoints or servers running Flexsense DiskBoss 7.7.14. The CVE record lists other versions as unaffected by default, but the sources do not provide a full fixed-version matrix. Prioritize systems where untrusted users can access the DiskBoss interface or where the software runs with elevated privileges.
Exploitation context
A public Exploit-DB entry is referenced, which increases validation urgency. However, the provided evidence does not support claims of active exploitation. The attack is described as local and tied to entering a crafted directory path in the Add Input Directory field, so exposure depends on local access and application usage conditions.
Researcher notes
Sources identify DiskBoss 7.7.14 and the Add Input Directory field as the affected surface. There is public exploit metadata, but no KEV status and no cited active-exploitation evidence. The source bundle does not name a patched version, so remediation should be validated against current vendor guidance.
Mitigation direction
- Identify and remove DiskBoss 7.7.14 where it is not required.
- Check Flexsense/DiskBoss guidance for patched or supported versions.
- Upgrade only according to vendor-supported guidance when available.
- Restrict local access to systems running DiskBoss 7.7.14.
- Run DiskBoss with least necessary privileges where operationally possible.
- Use application control to prevent unauthorized execution on affected systems.
Validation and detection
- Inventory endpoints and servers for DiskBoss installations.
- Confirm whether any installation is version 7.7.14.
- Review vendor and VulnCheck advisory details for remediation status.
- Check whether affected systems allow untrusted local users.
- Document compensating controls for any system that cannot be remediated.
- Monitor security tooling for suspicious DiskBoss process behavior.
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-119: 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 lookupExecution behavior lookup
The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2020-36881 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
- High
- CVSS
- 8.6 (4.0)
- Known Exploited
- No
- Published
Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/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:H/VI:H/VA:H/SC:N/SI:N/SA:N——Primary CVE scoreVulnerability scoring details
Base CVSS 4.0 score
8.6HighVector: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Source materials
- CVE List V5 sourceCVE List V5
- Exploit Database Entry 48279CVE reference · exploit
- Official Product HomepageCVE reference · product
- Software Link DownloadCVE reference · product
- GitHub RepositoryCVE reference · product
- https://www.vulncheck.com/advisories/flexsense-diskboss-add-input-directory-buffer-overflowCVE 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.
Improper Restriction of Operations within the Bounds of a Memory Buffer
Improper Restriction of Operations within the Bounds of a Memory Buffer represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.