CVE-2023-1101 Security feature bypass in SonicOS

What is CVE-2023-1101?

CVE-2023-1101 is a high-severity vulnerability in Sonicwall Sonicos, published on 2 Mar 2023. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

SonicOS SSLVPN improper restriction of excessive MFA attempts vulnerability allows an authenticated attacker to use excessive MFA codes.

Weakness: CWE-307

Which versions are affected by CVE-2023-1101?

It affects 1 product.

Products include Sonicwall Sonicos.

How do I fix CVE-2023-1101?

No fix has been published for CVE-2023-1101 yet. Limit exposure of the affected software until one is available.

Is CVE-2023-1101 being exploited?

There is no known exploitation of CVE-2023-1101 in the wild and no public exploit code.

Other vulnerabilities in Sonicwall Sonicos

• CVE-2020-5135 SonicWall SonicOS Buffer Overflow Exploited Critical 9.8
• CVE-2024-40766 SonicWall SonicOS Improper Access Control Exploited Critical 9.3
• CVE-2024-53704 SonicWall SonicOS SSLVPN Improper Authentication Exploited High 8.2
• CVE-2025-40600 Denial of service in SonicOS Critical 9.8
• CVE-2024-22394 Auth bypass in SonicOS Critical 9.8

All Sonicwall Sonicos vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-5whf-hr56-xhrf.