Vulnerability · CVE-2023-1101
SonicOS SSLVPN improper restriction of excessive MFA attempts vulnerability allows an authenticated attacker to use excessive MFA codes.
Published Mar 2, 2023 · catalog updated Jun 17, 2026 · SonicOS SSLVPN improper restriction
Last checked Nov 5, 2026. A connected source was read within the last 7 days.
Check if you run it
No confirmed exploitation is on record for CVE-2023-1101. EPSS is 0.68%. Act only if a listed version of SonicOS SSLVPN improper restriction is installed.
Gaps on this record
- The stored product name is a package slug. The name on this page is taken from the title (SonicOS SSLVPN improper restriction).
- No vendor fix or required action is stored. Compare the linked advisory before you change production.
Same product and reporting
- CVE-2026-0206 · Medium
- CVE-2026-0205 · Medium
- CVE-2026-0204 · High
- CVE-2026-3439 · Medium
- CVE-2026-0402 · Medium
- Severity
- High8.8
- Known exploitation
- Not in CISA/VulnCheck KEV
- EPSS
- 0.68%
- Remediation
- Version ranges on file
- Affected products
- cpe sonicwall/sonicos
SonicOS SSLVPN improper restriction of excessive MFA attempts vulnerability allows an authenticated attacker to use excessive MFA codes.
Are you affected?
Enter the version you run. The result uses only the ranges stored on this record.
The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.
- cpe sonicwall/sonicos< 7.0.1-5111
- cpe sonicwall/sonicos<= 6.5.4.11-97n
- cpe sonicwall/sonicos<= 6.5.4.4-44v-21-1551
- cpe sonicwall/sonicos<= 7.0.1-5083
How to fix CVE-2023-1101
Upgrade
CVE-2023-1101 lists a fix boundary at 7.0.1-5111. Compare the installed build with that boundary before you change production.
Version check
Affected < 7.0.1-5111
Advisory
Open the cve_org record and follow its fix.
Official advisories
What to do
Three questions, each answered from this record only. Confirm the vendor advisory before you patch.
Should you patch?
No confirmed exploitation is on record for CVE-2023-1101. EPSS is 0.68%. Act only if a listed version of SonicOS SSLVPN improper restriction is installed.
Which versions are affected?
Compare what you have installed with < 7.0.1-5111, <= 6.5.4.11-97n, <= 6.5.4.4-44v-21-1551, <= 7.0.1-5083. Compare the installed version with the linked vendor advisory before you change production.
What should an analyst verify?
CWE-307: Improper Restriction of Excessive Authentication Attempts. EPSS 0.68%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.
Technology hubs
Code
The project this record applies to. Exploit listings stay in References.
No public source repository is identified for this product.
Timeline
Detection, updates, and resolution for this record.
Mar 2, 2023 · Monitored products — critical
Detected
SonicOS SSLVPN improper restriction of excessive MFA attempts vulnerability allows an authenticated attacker to use excessive MFA codes.
Jun 17, 2026 · Monitored products — critical
Updated
SonicOS SSLVPN improper restriction of excessive MFA attempts vulnerability allows an authenticated attacker to use excessive MFA codes.
Sources
- CVE.orgVulnerability recordCVE-2023-1101
Official CVE identifier
cve.org - Monitored products — criticalVendor advisoryCVE-2023-1101
SonicOS SSLVPN improper restriction of excessive MFA attempts vulnerability allows an authenticated attacker to use excessive MFA codes.
nvd.nist.gov
References
Freshness
Last verified in this catalog Nov 5, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.
- CVE.orgNov 4, 2026
- Monitored products — criticalNov 2, 2026