A weak password hashing vulnerability has been identified on SonicOS virtual appliances, which in specific conditions could potentially enable an attacker with existing local access to disclose a platform credential. The credential provides access to a limite…
5.9Medium
CVE-2026-77709
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.
Weakness (CWE):
CWE-122
Data: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Published as the sources state it, in English.
Affected products and versions
References and patches
- https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2026-0014 vendor-advisory