CVE Tools
Sign in

CVE-2021-22918

Published: Jul 12, 2021Updated: Nov 21, 2024 Sources: CVE List NVD BDU csafCWE-125
NVD MITRE
5.3CVSSMEDIUM
EPSS Score
23.1%
Top 2.5%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Am I actually vulnerable?1 Nuclei template available — see how to check your systems. How to verify

Description

Node.js before 16.4.1, 14.17.2, 12.22.2 is vulnerable to an out-of-bounds read when uv__idna_toascii() is used to convert strings to ASCII. The pointer p is read and increased without checking whether it is beyond pe, with the latter holding a pointer to the end of the buffer. This can lead to information disclosures or crashes. This function can be triggered via uv_getaddrinfo().

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:LI:NA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:LConfidentiality
Low
I:NIntegrity
None
A:NAvailability
None
Open in CVSS calculator →

Weaknesses

CWE-125

Affected Products

node.jsnodejs
LibraryLibrary
OSS Libraries
sinec infrastructure network servicessiemens
On-prem
ICS / OT / IoT / industrial-network
NodeNodeJSOSS Libraries
Debian GNU/LinuxСообщество свободного программного обеспечения
On-premOS
Operating Systems / linux-distro
Red Hat Enterprise LinuxRed Hat Inc.
On-premOS
Operating Systems / linux-distro
nodejsoss-projectUSOSS Librariesaka node.js, node
siemenscommercialDEEnterprise Softwareaka siemens ag
сообщество свободного программного обеспеченияoss-projectOperating Systemsaka сообщество свободного программного обеспечения, fsf
red hat inc.commercialUSOperating Systemsaka red hat
and 7 more affected products View all →

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

Official Patch Available

MITRE ATT&CK

1 technique
Collection
View detailed technique mapping

References

https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf
cert-portal.siemens.com
https://hackerone.com/reports/1209681
hackerone.com
https://nodejs.org/en/blog/vulnerability/july-2021-security-releases/
nodejs.org
and 93 more references View all →

Timeline

Published
Jul 12, 2021
Last Updated
Nov 21, 2024

Unlock Complete Vulnerability Intelligence

Get the full picture for CVE-2021-22918 and every CVE in our database. Create a free account — no credit card required.

Create Free Account
Plain-language analysis
Impact assessment and exploitation scenario in plain English
Attack graph visualization
Interactive attack path and kill chain mapping
Exploit details & PoC links
ExploitDB, Metasploit, GitHub PoCs with direct links
Nuclei scanner templates
Ready-to-use vulnerability scanner templates
Full remediation guide
Patch instructions, workarounds, and compliance impact
Interactive AI chat
Ask questions about this vulnerability in natural language
Related vulnerabilities
Semantically similar CVEs and attack patterns
REST API & MCP access
Integrate vulnerability data into your workflows