CVE-2021-27232

Name: CVE-2021-27232
Creator: NVD / NIST
Published: 2021-02-16T15:15:13.647+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10EPSS 1.74%

Last modified Jun 17, 2026

CVE-2021-27232 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. The RTSPLive555.dll ActiveX control in Pelco Digital Sentry Server 7.18.72.11464 has a SetCameraConnectionParameter stack-based buffer overflow. This can be exploited by a remote attacker to potentially execute arbitrary attacker-supplied code. EPSS estimates a 1.74% chance of exploitation in the next 30 days.

Description

The RTSPLive555.dll ActiveX control in Pelco Digital Sentry Server 7.18.72.11464 has a SetCameraConnectionParameter stack-based buffer overflow. This can be exploited by a remote attacker to potentially execute arbitrary attacker-supplied code. The victim would have to visit a malicious webpage using Internet Explorer where the exploit could be triggered.

Metrics

CVSS 3.1

8.8/10

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

EPSS Probability

1.74%

74.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-787

Affected Software

Vendor	Product	Versions
Pelco	Digital Sentry Server	7.18.72.11464

References

https://github.com/vitorespf/Advisories/blob/master/Pelco_Digital_Sentry_Server-RSTPLive555%20Activex%20Buffer%20overflow.txtExploit, Third Party Advisory
https://support.pelco.com/s/article/What-is-the-Digital-Sentry-software-release-revision-historyVendor Advisory
https://github.com/vitorespf/Advisories/blob/master/Pelco_Digital_Sentry_Server-RSTPLive555%20Activex%20Buffer%20overflow.txtExploit, Third Party Advisory
https://support.pelco.com/s/article/What-is-the-Digital-Sentry-software-release-revision-historyVendor Advisory

Timeline

Published: Feb 16, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-27232?

How severe is CVE-2021-27232?

CVE-2021-27232 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 1.74% probability of exploitation in the next 30 days.

How do I fix CVE-2021-27232?

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-2021-27232?

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

Scan your code now

Source: NVD / NIST