HOMEVULNERABILITIESCVE-2021-47945
HIGH

CVE-2021-47945

CWE-428Published: May 10, 2026· Updated: May 13, 2026

7.8
CVSS v3.1
EPSS:0.01%probability of exploitation in 30 daysPercentile:2.1th

Official Description

Argus Surveillance DVR 4.0 contains an unquoted service path vulnerability in the DVRWatchdog service that allows local attackers to escalate privileges by exploiting the service binary path. Attackers can place a malicious executable in the Program Files directory to be executed with LocalSystem privileges when the service starts.

NVD Source

Technical Analysis

CVE-2021-47945 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 7.8.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorLocal
Attack ComplexityLow
Privileges Req.Low
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
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All References (2)

→
https://www.exploit-db.com/exploits/50261
→
https://www.vulncheck.com/advisories/argus-surveillance-dvr-unquoted-service-path-privilege-escalation

Quick Facts

CVE IDCVE-2021-47945
CVSS Score7.8 / 10
SeverityHIGH
WeaknessCWE-428
CISA KEVNo
EPSS (30d)0.01%
PublishedMay 10, 2026

Related CVEs (CWE-428)

CVE-2026-33253
8.4
CVE-2026-26033
8.4
CVE-2020-37232
7.8
CVE-2020-37229
7.8
CVE-2016-20060
7.8
CVE-2020-37247
7.8

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2021-47945 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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