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No exploitation reportedFix available

CVE-2021-46461

No exploitation reported by the sources we read.

  • Published2022-02-14
  • WeaknessCWE-119

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

njs through 0.7.0, used in NGINX, was discovered to contain an out-of-bounds array access via njs_vmcode_typeof in /src/njs_vmcode.c.

Timeline

dates in UTC
  1. 2022-02-1422:15CVE publishedNVD

Versions per branch

NVD
Nginx njs
BranchAffectedFixed in
0.7≤ 0.7.0no fix published

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • nginxCleanStartall versions · fixed in 1.20.2-r2
  • nginxAlpine:v3.24all versions · fixed in 1.20.2-r2
  • nginxAlpine:v3.23all versions · fixed in 1.20.2-r2
  • nginxAlpine:v3.22all versions · fixed in 1.20.2-r2
  • nginxAlpine:v3.21all versions · fixed in 1.20.2-r2
  • nginxAlpine:v3.20all versions · fixed in 1.20.2-r2
  • nginxAlpine:v3.19all versions · fixed in 1.20.2-r2
  • nginxAlpine:v3.18all versions · fixed in 1.20.2-r2

13 more package ranges on OSV.dev

Full record on NVD

Fix

Advisories and patches

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published
2022-02-14
Last Modified
2026-06-17
NVD status
Modified
GitHub Advisory
GHSA-8g5q-f4mq-w57g

Frequently asked questions

What is CVE-2021-46461?

njs through 0.7.0, used in NGINX, was discovered to contain an out-of-bounds array access via njs_vmcode_typeof in /src/njs_vmcode.c.

Is CVE-2021-46461 actively exploited?

Active exploitation of CVE-2021-46461 has not been confirmed. Its EPSS score was 3.1% on 2026-11-08, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2021-46461?

CVE-2021-46461 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

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