CVE-2020-25110
CRITICAL
9.8
CVSS Score
Published: December 11, 2020 at 10:59 PM UTC
Updated: June 17, 2026 at 03:06 AM UTC
1 product affected across 1 vendorNut /os
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Severity
CRITICAL9.8
Exploit prediction
EPSS 54%
Description
An issue was discovered in the DNS implementation in Ethernut in Nut/OS 5.1. The length byte of a domain name in a DNS query/response is not checked, and is used for internal memory operations. This may lead to successful Denial-of-Service, and possibly Remote Code Execution.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
v ≤ 5.1
Remediation
No guide yetNo remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.
References (2)
x_refsource_MISCThird Party AdvisoryUS Government Resource
Source: [email protected]
https://us-cert.cisa.gov/ics/advisories/icsa-20-343-01x_refsource_MISCThird Party AdvisoryUS Government Resource
Source: [email protected]
https://www.kb.cert.org/vuls/id/815128CVSS
- Attack Vector
- NETWORK
- Complexity
- LOW
- Privileges
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- HIGH
- Integrity
- HIGH
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-125
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