How severe is CVE-2021-31401?

This vulnerability has a severity rating of HIGH with a CVSS score of 7.5 out of 10.

What type of vulnerability is CVE-2021-31401?

This is classified as CWE-20, which is a common weakness in software security.

CVE-2021-31401

HIGH Year: 2021

CVSS v3 Score

7.5

High

CVSS v2 Score

5.0

Medium

Weakness Type

CWE-20

View all →

Vulnerability Description

An issue was discovered in tcp_rcv() in nptcp.c in HCC embedded InterNiche 4.0.1. The TCP header processing code doesn't sanitize the value of the IP total length field (header length + data length). With a crafted IP packet, an integer overflow occurs whenever the value of the IP data length is calculated by subtracting the length of the header from the total length of the IP packet.

CVE-2000-0258

HIGH

CVSS:7.5(High)

IIS 4.0 and 5.0 allows remote attackers to cause a denial of service by sending many URLs with a large number of escaped characters, aka the "Myriad Escaped Characters" Vulnerability.

CWE-202000

CVE-2008-2169

HIGH

CVSS:7.5(High)

Unspecified vulnerability in Avici routers allows remote attackers to cause a denial of service (dropped session) via crafted BGP UPDATE messages, leading to route flapping, possibly a related issue t...

CWE-202008

CVE-2008-2170

HIGH

CVSS:7.5(High)

Unspecified vulnerability in Century routers allows remote attackers to cause a denial of service (dropped session) via crafted BGP UPDATE messages, leading to route flapping, possibly a related issue...

CWE-202008

CVE-2008-2173

HIGH

CVSS:7.5(High)

Unspecified vulnerability in Yamaha routers allows remote attackers to cause a denial of service (dropped session) via crafted BGP UPDATE messages, leading to route flapping, possibly a related issue ...

CWE-202008