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CVE-2021-27232

22
FAUCET Score

CVE-2021-27232 is a stack-based buffer overflow vulnerability in the RTSPLive555.dll ActiveX control within Pelco Digital Sentry Server 7.18.72.11464. This vulnerability carries a high CVSS score of 8.8, indicating a critical risk where a remote attacker could execute arbitrary code by enticing a victim to visit a malicious webpage via Internet Explorer. While the EPSS score is low and there is no evidence of active exploitation or public exploit code, organizations using the affected Pelco Digital Sentry Server should prioritize patching to mitigate this significant risk.

Impacted Technologies

VendorProductVersion(s)CPE
7.18.72.11464CPE matchmatch criteria
cpe:2.3:a:pelco:digital_sentry_server:7.18.72.11464:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.8HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.74%
Probability of exploitation in next 30 days
EPSS Percentile
75.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0174 is in the 74th percentile among its peer group of 14,848 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.1 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

github.com / vitorespf/Advisories/blob/master/Pelco_Digital_Sentry_Server-RSTPLive555%20Activex%20Buffer%20overflow.txt
ExploitThird Party Advisory
support.pelco.com / s/article/What-is-the-Digital-Sentry-software-release-revision-history
Vendor Advisory