CVE-2021-22918

MEDIUM

5.3

CVSS Score

Published: July 12, 2021 at 12:00 AM UTC

Updated: June 17, 2026 at 03:38 AM UTC

2 products affected across 2 vendorsNode.jsSinec Infrastructure Network Services

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Severity

MEDIUM5.3

Exploit prediction

EPSS 23%

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().

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Node.js · Node.js

95%

10.0 ≤ v < 10.*11.0 ≤ v < 11.*12.0 ≤ v < 12.22.212.0.0 ≤ v < 12.22.213.0 ≤ v < 13.*14.0 ≤ v < 14.17.214.0.0 ≤ v < 14.17.215.0 ≤ v < 15.*16.0 ≤ v < 16.4.116.0.0 ≤ v < 16.4.14.0 ≤ v < 4.*5.0 ≤ v < 5.*6.0 ≤ v < 6.*7.0 ≤ v < 7.*8.0 ≤ v < 8.*9.0 ≤ v < 9.*10.0 11.0 12.0 13.0 14.0 15.0 16.0 4.0 5.0 6.0 7.0 8.0 9.0

Affected range stops below 10.*, so it looks safe — our inference, not a vendor statement

Affected range stops below 11.*, so it looks safe — our inference, not a vendor statement

Affected range stops below 12.22.2, so it looks safe — our inference, not a vendor statement

Affected range stops below 13.*, so it looks safe — our inference, not a vendor statement

Affected range stops below 14.17.2, so it looks safe — our inference, not a vendor statement

Affected range stops below 15.*, so it looks safe — our inference, not a vendor statement

Affected range stops below 16.4.1, so it looks safe — our inference, not a vendor statement

Affected range stops below 4.*, so it looks safe — our inference, not a vendor statement

Affected range stops below 5.*, so it looks safe — our inference, not a vendor statement

Affected range stops below 6.*, so it looks safe — our inference, not a vendor statement

Affected range stops below 7.*, so it looks safe — our inference, not a vendor statement

Affected range stops below 8.*, so it looks safe — our inference, not a vendor statement

Affected range stops below 9.*, so it looks safe — our inference, not a vendor statement

Sinec Infrastructure Network Services · Siemens

95%

v < 1.0.1.1

Affected range stops below 1.0.1.1, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (5)

x_refsource_CONFIRMPatchThird Party Advisory

Source: [email protected]

https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf

ExploitThird Party Advisory

Source: [email protected]

https://hackerone.com/reports/1209681

x_refsource_MISCPatchVendor Advisory

Source: [email protected]

https://nodejs.org/en/blog/vulnerability/july-2021-security-releases/

Vendor Advisory

Source: [email protected]

https://security.gentoo.org/glsa/202401-23

x_refsource_CONFIRMThird Party Advisory

Source: [email protected]

https://security.netapp.com/advisory/ntap-20210805-0003/

CVSS

5.3MEDIUM[email protected]

Attack Vector: NETWORK
Complexity: LOW
Privileges: NONE
User Interaction: NONE
Scope: UNCHANGED
Confidentiality: LOW
Integrity: NONE
Availability: NONE

Vector?

Quick Info

StatusMODIFIED

CWE

CWE-125

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