Description
A pre-authentication heap-based buffer overflow vulnerability has been identified in the SonicOS TACACS+ authentication client, which in specific conditions could potentially enable a remote unauthenticated attacker to cause an application level denial of service.
Published: 2026-11-06
Score: 5.9 Medium
EPSS: n/a
KEV: No
AI Analysis

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Remediation

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Tracking

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Advisories

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History

Fri, 06 Nov 2026 21:00:00 +0000

Type Values Removed Values Added
Title SonicOS TACACS+ Authentication Client Heap Buffer Overflow causing DoS

Fri, 06 Nov 2026 20:30:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 5.9, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H'}

Fri, 06 Nov 2026 19:15:00 +0000

Type Values Removed Values Added
Description A pre-authentication heap-based buffer overflow vulnerability has been identified in the SonicOS TACACS+ authentication client, which in specific conditions could potentially enable a remote unauthenticated attacker to cause an application level denial of service.
Weaknesses CWE-122
References

Subscriptions

No data.

cve-icon MITRE

Status: PUBLISHED

Assigner: sonicwall

Published:

Updated: 2026-11-06T19:22:06.640Z

Reserved: 2026-08-21T08:45:58.616Z

Link: CVE-2026-77709

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-11-06T19:17:57.447

Modified: 2026-11-06T21:13:01.193

Link: CVE-2026-77709

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-11-06T20:45:07Z

Weaknesses
  • CWE-122

    Heap-based Buffer Overflow