Is CVE-2020-27541 actively exploited?

No active exploitation of CVE-2020-27541 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2020-27541 be exploited remotely?

Yes. CVE-2020-27541 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2020-27541?

CVE-2020-27541 has a CVSS score of 7.5 (HIGH).

HOME VULNERABILITIESCVE-2020-27541

HIGH

CVE-2020-27541

CWE-787Published: January 26, 2021· Updated: Jun 17, 2026

7.5

CVSS v3.1

Official Description

Denial of Service vulnerability in Rostelecom CS-C2SHW 5.0.082.1. AgentGreen service has a bug in parsing broadcast discovery UDP packet. Sending a packet of too small size will lead to an attempt of allocating buffer of negative size. As the result service AgentGreen will be terminated and started again later.

NVD Source

Technical Analysis

CVE-2020-27541 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 availability disruption (denial of service), with a CVSS base score of 7.5.

From a weakness classification perspective (CWE-787): Out-of-bounds write vulnerabilities can lead to data corruption, crashes, or arbitrary code execution.