PT-2020-5597 · Treck · Treck Ipv6

Published 2020-12-18 · Updated 2025-09-30 · CVE-2020-27336

Positive Technologies (AI Summary)

CVSS v3.1

5.3

Medium

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Name of the Vulnerable Software and Affected Versions Treck IPv6 versions prior to 6.0.1.68

Description The issue is related to insufficient input validation in the IPv6 component when handling a packet, which could result in an out-of-bounds read of up to three bytes via network access. This could be exploited by an unauthenticated remote attacker.

Recommendations For versions prior to 6.0.1.68, update to version 6.0.1.68 or later to resolve the issue. As a temporary workaround, consider restricting network access to minimize the risk of exploitation.

Fix

Out of bounds Read

RCE

Weakness Enumeration

CWE-125

CWE-20

Related Identifiers

BDU:2021-01232

CVE-2020-27336

Affected Products

Treck Ipv6

References · 15

• https://nvd.nist.gov/vuln/detail/CVE-2020-27336 · Security Note
• https://treck.com/vulnerability-response-information · Vendor Advisory
• https://bdu.fstec.ru/vul/2021-01232 · Security Note
• https://osv.dev/vulnerability/CVE-2020-27336 · Vendor Advisory
• https://us-cert.cisa.gov/ics/advisories/icsa-20-353-01 · Note
• https://t.me/cibsecurity/21203 · Telegram Post
• https://t.me/cvenotify/7600 · Telegram Post
• https://ics-cert.kaspersky.ru/news/2021/02/05/getting-back-on-treck-more-vulnerabilities-in-the-infamous-tcp-ip-stack · Note
• https://t.me/cveNotify/136937 · Telegram Post
• https://opennet.ru/opennews/art.shtml?num=53170 · Note
• https://se.com/ru/ru/download/document/SEVD-2020-353-01 · Note
• https://securitylab.ru/news/515067.php · Note
• https://t.me/cvenotify/7607 · Telegram Post
• https://t.me/cvenotify/11998 · Telegram Post
• https://security.netapp.com/advisory/ntap-20210201-0003 · Note