CVE-2020-27541

Name: CVE-2020-27541
Creator: NVD / NIST
Published: 2021-01-26T18:15:46.177+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 1.11%

Last modified Jun 17, 2026

CVE-2020-27541 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. Denial of Service vulnerability in Rostelecom CS-C2SHW 5.0.082.1. AgentGreen service has a bug in parsing broadcast discovery UDP packet. EPSS estimates a 1.11% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

7.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS Probability

1.11%

61.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-787

Affected Software

Vendor	Product	Versions
Company	Cs-C2shw Firmware	5.0.082.1

References

https://dil4rd.medium.com/groundhog-day-in-iot-valley-or-5-cves-in-1-camera-7dc1d2864707Exploit, Third Party Advisory
https://dil4rd.medium.com/groundhog-day-in-iot-valley-or-5-cves-in-1-camera-7dc1d2864707Exploit, Third Party Advisory

Timeline

Published: Jan 26, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-27541?

How severe is CVE-2020-27541?

CVE-2020-27541 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 1.11% probability of exploitation in the next 30 days.

How do I fix CVE-2020-27541?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-27541?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST