HOMEVULNERABILITIESCVE-2021-35964
CRITICAL

CVE-2021-35964

CWE-285Published: July 19, 2021· Updated: Jun 17, 2026

9.8
CVSS v3.1

Official Description

The management page of the Orca HCM digital learning platform does not perform identity verification, which allows remote attackers to execute the management function without logging in, access members’ information, modify and delete the courses in system, thus causing users fail to access the learning content.

NVD Source

Technical Analysis

CVE-2021-35964 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

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 9.8.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

learningdigital1 product(s)
orca hcm
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://www.chtsecurity.com/news/ba7b3ae7-14f3-4970-b3f6-4d97d8c7ea25
ADVISORYhttps://www.twcert.org.tw/tw/cp-132-4924-f74d5-1.html
ADVISORYhttps://www.chtsecurity.com/news/ba7b3ae7-14f3-4970-b3f6-4d97d8c7ea25
ADVISORYhttps://www.twcert.org.tw/tw/cp-132-4924-f74d5-1.html

All References (4)

→
https://www.chtsecurity.com/news/ba7b3ae7-14f3-4970-b3f6-4d97d8c7ea25Third Party Advisory
→
https://www.twcert.org.tw/tw/cp-132-4924-f74d5-1.htmlThird Party Advisory
→
https://www.chtsecurity.com/news/ba7b3ae7-14f3-4970-b3f6-4d97d8c7ea25Third Party Advisory
→
https://www.twcert.org.tw/tw/cp-132-4924-f74d5-1.htmlThird Party Advisory

Quick Facts

CVE IDCVE-2021-35964
CVSS Score9.8 / 10
SeverityCRITICAL
WeaknessCWE-285
CISA KEVNo
Affected1 vendor(s)
PublishedJul 19, 2021

Related CVEs (CWE-285)

CVE-2020-5206
10.0
CVE-2022-2595
10.0
CVE-2021-37705
10.0
CVE-2021-31384
10.0
CVE-2026-57983
10.0
CVE-2024-43602
9.9

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2021-35964 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.
← All Vulnerabilities·Search for CVE-2021-35964·NVD