HOMEVULNERABILITIESCVE-2021-23440
CRITICAL

CVE-2021-23440

CWE-843Published: September 12, 2021· Updated: Jun 17, 2026

9.8
CVSS v3.1

Official Description

This affects the package set-value before <2.0.1, >=3.0.0 <4.0.1. A type confusion vulnerability can lead to a bypass of CVE-2019-10747 when the user-provided keys used in the path parameter are arrays.

NVD Source

Technical Analysis

CVE-2021-23440 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

Oracle1 product(s)
communications cloud native core policy
set-value_project1 product(s)
set-value
Source: NVD CPE · 2 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

PATCHhttps://github.com/jonschlinkert/set-value/commit/7cf8073bb06bf0c15e08475f9f952823b4576452
PATCHhttps://github.com/jonschlinkert/set-value/pull/33
PATCHhttps://www.oracle.com/security-alerts/cpujan2022.html
PATCHhttps://github.com/jonschlinkert/set-value/commit/7cf8073bb06bf0c15e08475f9f952823b4576452
PATCHhttps://github.com/jonschlinkert/set-value/pull/33
PATCHhttps://www.oracle.com/security-alerts/cpujan2022.html
ADVISORYhttps://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1584212
ADVISORYhttps://snyk.io/vuln/SNYK-JS-SETVALUE-1540541
ADVISORYhttps://www.huntr.dev/bounties/2eae1159-01de-4f82-a177-7478a408c4a2/
ADVISORYhttps://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1584212
ADVISORYhttps://snyk.io/vuln/SNYK-JS-SETVALUE-1540541
ADVISORYhttps://www.huntr.dev/bounties/2eae1159-01de-4f82-a177-7478a408c4a2/

All References (12)

→
https://github.com/jonschlinkert/set-value/commit/7cf8073bb06bf0c15e08475f9f952823b4576452Patch · Third Party Advisory
→
https://github.com/jonschlinkert/set-value/pull/33Patch · Third Party Advisory
→
https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1584212Exploit · Third Party Advisory
→
https://snyk.io/vuln/SNYK-JS-SETVALUE-1540541Exploit · Third Party Advisory
→
https://www.huntr.dev/bounties/2eae1159-01de-4f82-a177-7478a408c4a2/Exploit · Third Party Advisory
→
https://www.oracle.com/security-alerts/cpujan2022.htmlPatch · Third Party Advisory
→
https://github.com/jonschlinkert/set-value/commit/7cf8073bb06bf0c15e08475f9f952823b4576452Patch · Third Party Advisory
→
https://github.com/jonschlinkert/set-value/pull/33Patch · Third Party Advisory
→
https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1584212Exploit · Third Party Advisory
→
https://snyk.io/vuln/SNYK-JS-SETVALUE-1540541Exploit · Third Party Advisory
→
https://www.huntr.dev/bounties/2eae1159-01de-4f82-a177-7478a408c4a2/Exploit · Third Party Advisory
→
https://www.oracle.com/security-alerts/cpujan2022.htmlPatch · Third Party Advisory

Quick Facts

CVE IDCVE-2021-23440
CVSS Score9.8 / 10
SeverityCRITICAL
WeaknessCWE-843
CISA KEVNo
Affected2 vendor(s)
PublishedSep 12, 2021

Related CVEs (CWE-843)

CVE-2021-33970
10.0
CVE-2010-2299
10.0
CVE-2025-59717
9.8
CVE-2024-34391
9.8
CVE-2025-47151
9.8
CVE-2024-34392
9.8

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2021-23440 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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