Security readout for executives and security teams
Plain-English summary
LanSend 3.2 has a critical memory-corruption flaw in its computer-list import feature. A malicious import file can cause code execution in the context of the user running LanSend. Public exploit material exists, but the provided sources do not show active exploitation or CISA KEV listing.
Executive priority
Treat as high-priority if LanSend 3.2 is present. The business risk is arbitrary code execution through a legacy administrative utility with public exploit details. Prioritize inventory, removal or upgrade decisions, and controls around untrusted import files.
Technical view
CVE-2020-37075 is a CWE-120 buffer overflow in LizardSystems LanSend 3.2 Add Computers Wizard file import handling. The advisory describes an SEH overwrite leading to arbitrary code execution. The CVSS v3.1 score is 9.8, though the description indicates exploitation involves a crafted file being imported.
Likely exposure
Organizations are exposed if they still run LizardSystems LanSend 3.2, especially where users import computer lists from untrusted or externally supplied files. Exposure is likely limited to endpoints or administrative workstations where LanSend is installed.
Exploitation context
ExploitDB and VulnCheck reference public exploit information. The provided data does not establish active exploitation in the wild. Practical exploitation appears tied to processing a malicious import file in LanSend’s Add Computers Wizard.
Researcher notes
The CVSS vector lists UI:N, but the narrative centers on importing a crafted file. Validate exploitability assumptions against the original advisory before modeling remote exposure. No patch status is provided in the source bundle, so remediation should be grounded in vendor guidance or decommissioning.
Mitigation direction
- Identify and inventory any LanSend 3.2 installations.
- Check LizardSystems guidance for supported versions, fixes, or upgrade paths.
- Avoid importing computer lists from untrusted sources.
- Restrict LanSend use to trusted administrative workstations.
- Remove LanSend where it is not business-critical.
Validation and detection
- Search software inventory for LizardSystems LanSend version 3.2.
- Confirm whether users import computer lists from files.
- Review endpoint controls for LanSend execution and file handling.
- Check vendor and advisory pages for updated remediation information.
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-120: 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-2020-37075 mapping review
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Open ATT&CK lookup- Severity
- Critical
- CVSS
- 9.8 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H3.95.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
9.8CriticalVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- ExploitDB-48461CVE reference · exploit
- LanSend Product WebpageCVE reference · product
- VulnCheck Advisory: LanSend 3.2 - Buffer Overflow (SEH)CVE 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.
Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.