HOMEVULNERABILITIESCVE-2021-22931
CRITICAL

CVE-2021-22931

CWE-170Published: August 16, 2021· Updated: Jun 17, 2026

9.8
CVSS v3.1

Official Description

Node.js before 16.6.0, 14.17.4, and 12.22.4 is vulnerable to Remote Code Execution, XSS, Application crashes due to missing input validation of host names returned by Domain Name Servers in Node.js dns library which can lead to output of wrong hostnames (leading to Domain Hijacking) and injection vulnerabilities in applications using the library.

NVD Source

Technical Analysis

CVE-2021-22931 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

netapp5 product(s)
active iq unified managernextgen apioncommand insightoncommand workflow automationsnapcenter
Node.js1 product(s)
node.js
Oracle3 product(s)
graalvmmysql clusterpeoplesoft enterprise peopletools
siemens1 product(s)
sinec infrastructure network services
Source: NVD CPE · 13 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://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf
PATCHhttps://nodejs.org/en/blog/vulnerability/aug-2021-security-releases/
PATCHhttps://www.oracle.com/security-alerts/cpujan2022.html
PATCHhttps://www.oracle.com/security-alerts/cpuoct2021.html
PATCHhttps://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf
PATCHhttps://nodejs.org/en/blog/vulnerability/aug-2021-security-releases/
PATCHhttps://www.oracle.com/security-alerts/cpujan2022.html
PATCHhttps://www.oracle.com/security-alerts/cpuoct2021.html
ADVISORYhttps://hackerone.com/reports/1178337
ADVISORYhttps://security.netapp.com/advisory/ntap-20210923-0001/
ADVISORYhttps://security.netapp.com/advisory/ntap-20211022-0003/
ADVISORYhttps://www.oracle.com/security-alerts/cpujul2022.html
ADVISORYhttps://hackerone.com/reports/1178337
ADVISORYhttps://security.netapp.com/advisory/ntap-20210923-0001/
ADVISORYhttps://security.netapp.com/advisory/ntap-20211022-0003/
ADVISORYhttps://www.oracle.com/security-alerts/cpujul2022.html

All References (18)

→
https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdfPatch · Third Party Advisory
→
https://hackerone.com/reports/1178337Exploit · Issue Tracking · Third Party Advisory
→
https://nodejs.org/en/blog/vulnerability/aug-2021-security-releases/Patch · Vendor Advisory
→
https://security.gentoo.org/glsa/202401-02
→
https://security.netapp.com/advisory/ntap-20210923-0001/Third Party Advisory
→
https://security.netapp.com/advisory/ntap-20211022-0003/Third Party Advisory
→
https://www.oracle.com/security-alerts/cpujan2022.htmlPatch · Third Party Advisory
→
https://www.oracle.com/security-alerts/cpujul2022.htmlThird Party Advisory
→
https://www.oracle.com/security-alerts/cpuoct2021.htmlPatch · Third Party Advisory
→
https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdfPatch · Third Party Advisory
→
https://hackerone.com/reports/1178337Exploit · Issue Tracking · Third Party Advisory
→
https://nodejs.org/en/blog/vulnerability/aug-2021-security-releases/Patch · Vendor Advisory
→
https://security.gentoo.org/glsa/202401-02
→
https://security.netapp.com/advisory/ntap-20210923-0001/Third Party Advisory
→
https://security.netapp.com/advisory/ntap-20211022-0003/Third Party Advisory

Quick Facts

CVE IDCVE-2021-22931
CVSS Score9.8 / 10
SeverityCRITICAL
WeaknessCWE-170
CISA KEVNo
Affected4 vendor(s)
PublishedAug 16, 2021

Related CVEs (CWE-170)

CVE-2021-1411
9.9
CVE-2021-31884
9.8
CVE-2021-31886
9.8
CVE-2026-8721
9.8
CVE-2026-5067
9.8
CVE-2019-8275
9.8

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2021-22931 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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