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CVE-2026-777095.9Medium

CVE-2026-77709: SonicWall SonicOS vulnerability

SonicWall · SonicOS

Vendor fix available · Affected: SonicWall SonicOS · Exploitation: not established

ExploitationNot established

Not in CISA KEV as of catalogue 2026.11.06 (6 Nov)

  1. In CISA KEV: not seen
  2. Exploited (reported): not seen
  3. Scanning observed: not seen
  4. Proof of concept public: not seen
  5. Not establishedNothing in the sources we check
0.7%probability of exploitation in the next 30 days
51st percentile
050100

Higher than 51% of scored CVEs

5.9MediumCVSS
LowMedium

DescriptionNVD

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.

Coverage1 article · 1 outlet

First in our coverage: SecurityOnline, 7 Nov.

  1. Attackers Exploit SonicWall SSLVPN Flaw to Bypass MFA
    SecurityOnline · first in our coverage · mentions it in passing

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References

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