What’s Vulnerable › Vulnerabilities

CVE-2020-11881

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 3.8% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2020-09-14 · updated 2026-06-17
• Weakness: CWE-129

Description

An array index error in MikroTik RouterOS 6.41.3 through 6.46.5, and 7.x through 7.0 Beta5, allows an unauthenticated remote attacker to crash the SMB server via modified setup-request packets, aka SUP-12964.

Affected products

• MikroTik RouterOS: from 6.41.3 through 6.46.5; 7.0-beta3, 7.0-beta4, 7.0-beta5

References

• https://github.com/botlabsDev/CVE-2020-11881
• https://mikrotik.com
• https://github.com/botlabsDev/CVE-2020-11881
• https://mikrotik.com

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