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CVE-2021-27197

24
FAUCET Score

CVE-2021-27197 is an arbitrary file write vulnerability in DSUtility.dll within Pelco Digital Sentry Server versions prior to 7.19.67. This flaw allows a remote attacker to overwrite arbitrary files by crafting a malicious HTML page that leverages the AppendToTextFile method without proper validation. With a CVSS score of 8.1 (HIGH), this vulnerability is easily exploitable over the network with low attack complexity, requiring user interaction but potentially leading to high integrity and availability impacts. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 7.19.67CPE matchmatch criteria
cpe:2.3:a:pelco:digital_sentry_server:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.1HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
5.2
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.79%
Probability of exploitation in next 30 days
EPSS Percentile
52.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0079 is in the 54th percentile among its peer group of 14,875 CVEs.

Social Chatter

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_AFW.txt
ExploitThird Party Advisory
support.pelco.com / s/article/What-is-the-Digital-Sentry-software-release-revision-history
Release NotesVendor Advisory