Cyber Resilience

CVE-2020-25767

High

Published: 18 August 2021

Published
18 August 2021
Modified
21 November 2024
KEV Added
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Patch
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CVSS Score v3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS Score 0.0039 60.5th percentile
Risk Priority 15 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2020-25767 is a high-severity Out-of-bounds Read (CWE-125) vulnerability in Hcc-Embedded Nichestack Ipv4. Its CVSS base score is 7.5 (High).

Operationally, ranked in the top 39.5% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

An issue was discovered in HCC Embedded NicheStack IPv4 4.1. The dnc_copy_in routine for parsing DNS domain names does not check whether a domain name compression pointer is pointing within the bounds of the packet (e.g., forward compression pointer jumps…

more

are allowed), which leads to an Out-of-bounds Read, and a Denial-of-Service as a consequence.

CWE(s)
CWE-125

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

hcc-embedded
nichestack ipv4
4.1

Mitigating Controls

No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.

References