Security readout for executives and security teams
Plain-English summary
SafeNet KeySecure 8.12.4 has a path traversal flaw that could let an authenticated user read files outside intended directories on the underlying system. The public record rates this low severity because it requires local/authenticated access and affects confidentiality only. For key management systems, treat exposure seriously where many users have access.
Executive priority
Handle through the normal vulnerability management cycle, but accelerate remediation for KeySecure systems with broad user access or sensitive local configuration. The issue is low CVSS, yet it affects a security product that may sit near sensitive key-management workflows.
Technical view
CVE-2021-42811 is a CWE-22 path traversal issue in Thales DIS SafeNet KeySecure 8.12.4. The CVSS 3.1 vector is 3.3, AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N. Sources describe arbitrary file read by an authenticated user, with no integrity or availability impact stated.
Likely exposure
Exposure is limited to organizations running SafeNet KeySecure 8.12.4 where authenticated users can interact with the affected component. Risk increases if access to the host or management environment is broadly granted, shared, or weakly monitored.
Exploitation context
The supplied sources do not indicate active exploitation, and the CVE is not listed as KEV. Exploitation requires privileges according to the CVSS vector and authenticated access according to the description. No public exploit details are included in the source bundle.
Researcher notes
The public bundle names the vulnerable product and version but does not provide affected endpoints, exploit procedure, fixed versions, or detailed mitigation text. Validation should stay inventory- and configuration-focused, then defer remediation specifics to Thales advisory KB0025953.
Mitigation direction
- Identify any SafeNet KeySecure 8.12.4 deployments.
- Review Thales KB0025953 for vendor-approved fixes or mitigations.
- Restrict authenticated access to trusted KeySecure operators only.
- Harden host access controls around KeySecure systems.
- Monitor for unusual file access or application error patterns.
Validation and detection
- Confirm installed SafeNet KeySecure versions against asset inventory.
- Check whether any deployment is specifically version 8.12.4.
- Review user roles with access to KeySecure or its host.
- Validate current remediation status against Thales guidance.
- Review logs for suspicious file-read failures or anomalies.
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-22: File access and web shell behavior lookup
File traversal and upload weaknesses can lead teams to review file, web shell, execution, and collection telemetry. 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 lookupFile access behavior lookup
The CVE wording references file access or upload behavior, so file telemetry and web shell review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2021-42811 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
- Low
- CVSS
- 3.3 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A: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:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N1.81.4Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
3.3LowVector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Source materials
- CVE List V5 sourceCVE List V5
- https://supportportal.thalesgroup.com/csm?id=kb_article_view&sys_kb_id=9278cada973f45509fd638d3f153afff&sysparm_article=KB0025953CVE 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.