HOMEVULNERABILITIESCVE-2021-41847
HIGH

CVE-2021-41847

CWE-639Published: October 1, 2021· Updated: Jun 17, 2026

8.8
CVSS v3.1

Official Description

An issue was discovered in 3xLogic Infinias Access Control through 6.7.10708.0, affecting physical security. Users with login credentials assigned to a specific zone can send modified HTTP GET and POST requests, allowing them to view user data such as personal information and Prox card credentials. Also, an authorized user of one zone can send API requests to unlock electronic locks associated with zones they are unauthorized to have access to. They can also create new user logins for zones they were not authorized to access, including the root zone of the software.

NVD Source

Technical Analysis

CVE-2021-41847 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

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 8.8.

CVSS v3.1 Vector Breakdown

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

Affected Vendors & Products

3xlogic1 product(s)
infinias access control
Source: NVD CPE · 1 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
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

ADVISORYhttps://gitlab.com/grose88/infinias
ADVISORYhttps://grant-rose.com/infinias-access-control-vulnerability/
ADVISORYhttps://www.3xlogic.com/infinias-access-control
ADVISORYhttps://gitlab.com/grose88/infinias
ADVISORYhttps://grant-rose.com/infinias-access-control-vulnerability/
ADVISORYhttps://www.3xlogic.com/infinias-access-control

All References (6)

→
https://gitlab.com/grose88/infiniasExploit · Third Party Advisory
→
https://grant-rose.com/infinias-access-control-vulnerability/Exploit · Third Party Advisory
→
https://www.3xlogic.com/infinias-access-controlProduct · Vendor Advisory
→
https://gitlab.com/grose88/infiniasExploit · Third Party Advisory
→
https://grant-rose.com/infinias-access-control-vulnerability/Exploit · Third Party Advisory
→
https://www.3xlogic.com/infinias-access-controlProduct · Vendor Advisory

Quick Facts

CVE IDCVE-2021-41847
CVSS Score8.8 / 10
SeverityHIGH
WeaknessCWE-639
CISA KEVNo
Affected1 vendor(s)
PublishedOct 1, 2021

Related CVEs (CWE-639)

CVE-2024-45032
10.0
CVE-2025-40805
10.0
CVE-2026-45552
9.9
CVE-2025-0987
9.9
CVE-2026-54052
9.9
CVE-2026-29200
9.9

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2021-41847 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. CVE data is provided under the NVD usage policy.
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