CVE-2020-25928

CRITICAL
9.8
CVSS Score
Published: August 18, 2021 at 06:41 PM UTC
Updated: June 17, 2026 at 03:07 AM UTC
1 product affected across 1 vendorNichestack TCP /ip

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Severity
CRITICAL9.8
Exploit prediction
EPSS 4%

Description

The DNS feature in InterNiche NicheStack TCP/IP 4.0.1 is affected by: Buffer Overflow. The impact is: execute arbitrary code (remote). The component is: DNS response processing functions: dns_upcall(), getoffset(), dnc_set_answer(). The attack vector is: a specific DNS response packet. The code does not check the "response data length" field of individual DNS answers, which may cause out-of-bounds read/write operations, leading to Information leak, Denial-or-Service, or Remote Code Execution, depending on the context.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (2)

Third Party Advisoryx_refsource_CERT-VNx_refsource_MISCUS Government Resource
https://www.kb.cert.org/vuls/id/608209

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-125CWE-787

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