HIGH
CVE-2021-44463
CWE-427Published: January 28, 2022· Updated: Jun 17, 2026
7.3
CVSS v3.1
Official Description
Missing DLLs, if replaced by an insider, could allow an attacker to achieve local privilege escalation on the DeltaV Distributed Control System Controllers and Workstations (All versions) when some DeltaV services are started.
Technical Analysis
CVE-2021-44463 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 7.3.
CVSS v3.1 Vector Breakdown
Exploitability
Attack VectorLocal
Attack ComplexityLow
Privileges Req.Low
User InteractionRequired
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
Affected Vendors & Products
emerson1 product(s)
deltav
Source: NVD CPE · 4 total CPE entries
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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Official Patches & Advisories
All References (2)
→
https://www.cisa.gov/uscert/ics/advisories/icsa-21-355-04Mitigation · Third Party Advisory · US Government Resource
→
https://www.cisa.gov/uscert/ics/advisories/icsa-21-355-04Mitigation · Third Party Advisory · US Government Resource
Quick Facts
CVE IDCVE-2021-44463
CVSS Score7.3 / 10
SeverityHIGH
WeaknessCWE-427
CISA KEVNo
Affected1 vendor(s)
PublishedJan 28, 2022
Related CVEs (CWE-427)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2021-44463 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.