Security readout for executives and security teams
Plain-English summary
CVE-2021-44862 is a Netskope NSClient logging flaw. Sensitive information may be written to local client logs without masking, allowing a local attacker to use that information to download data or impersonate another user.
Executive priority
Treat this as a high-priority endpoint hygiene issue where Netskope NSClient is deployed. It is not cited as actively exploited, but the business impact can include impersonation and unauthorized data access if local logs are exposed.
Technical view
The issue affects Netskope NSClient 91.0 and prior and maps to CWE-532, insertion of sensitive information into log files. The source description says an authenticated local attacker can view restricted sensitive log data. The CVSS v3.1 score is 8.4 high, with confidentiality, integrity, and availability all rated high.
Likely exposure
Exposure is most likely on endpoints running Netskope NSClient version 91.0 or earlier, especially where local users can access NSClient logs. The provided sources do not identify other Netskope products as affected.
Exploitation context
The source bundle does not show CISA KEV listing or cited active exploitation. The practical risk is local access to improperly scrubbed logs that may enable data download or user impersonation.
Researcher notes
There is a description mismatch: the text says authenticated local attacker, while the CVSS vector lists PR:N. Do not broaden exposure beyond Netskope NSClient 91.0 and prior without vendor confirmation. Patch details are not present in the source bundle excerpt.
Mitigation direction
- Identify endpoints running Netskope NSClient 91.0 or earlier.
- Review the Netskope advisory for the vendor-supported fixed version and guidance.
- Upgrade affected NSClient installations according to Netskope guidance.
- Restrict local access to NSClient logs where possible.
- Rotate or revoke sensitive material found in affected logs.
Validation and detection
- Inventory installed Netskope NSClient versions across managed endpoints.
- Confirm affected systems are upgraded beyond the vulnerable release range.
- Review endpoint log access controls for inappropriate local readability.
- Check whether affected logs contain sensitive information requiring rotation.
- Document compensating controls if immediate upgrade is delayed.
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-532: 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-2021-44862 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
- 8.4 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:L/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:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H2.55.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
8.4HighVector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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.
Insertion of Sensitive Information into Log File
Insertion of Sensitive Information into Log File represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.