Is CVE-2020-27255 actively exploited?

No active exploitation of CVE-2020-27255 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2020-27255 be exploited remotely?

Yes. CVE-2020-27255 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2020-27255?

CVE-2020-27255 has a CVSS score of 7.5 (HIGH).

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HIGH

CVE-2020-27255

CWE-122Published: November 26, 2020· Updated: Jun 17, 2026

7.5

CVSS v3.1

Official Description

A heap overflow vulnerability exists within FactoryTalk Linx Version 6.11 and prior. This vulnerability could allow a remote, unauthenticated attacker to send malicious set attribute requests, which could result in the leaking of sensitive information. This information disclosure could lead to the bypass of address space layout randomization (ASLR).

NVD Source

Technical Analysis

CVE-2020-27255 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), with a CVSS base score of 7.5.