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TI-2021-21569 Aliases CVE-2021-46901GHSA-hh37-43rq-667r

examples/6lbr/apps/6lbr-webserver/httpd.c in CETIC-6LBR (aka 6lbr) 1.5.0 has a strcat…

Priority LOW 34CWE-787Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-787 and the CVSS impact.

Summary

examples/6lbr/apps/6lbr-webserver/httpd.c in CETIC-6LBR (aka 6lbr) 1.5.0 has a strcat stack-based buffer overflow via a request for a long URL over a 6LoWPAN network.

Why it matters now

EPSS 0.00659 51st percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:o:cetic:cetic-6lbr:1.5.0:*:*:*:*:*:*:*1.5.0VulnerableCetic
  • cpe:2.3:o:cetic:cetic-6lbr:1.5.0:*:*:*:*:*:*:* Versions 1.5.0 Vulnerable ·Cetic

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-46901
  2. 2026-10-03 Alias added: GHSA-hh37-43rq-667r
  3. 2026-10-09 EPSS moved to the 50th–90th percentile

References

Exploit 1

Patch 1

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences