CVE-2021-44533

Exp

Node.js < 12.22.9, < 14.18.3, < 16.13.2, and < 17.3.1 did not handle multi-value Relative Distinguished Names correctly. Attackers could craft certificate subjects containing a single-value Relative Distinguished Name that would be interpreted as a multi-value Relative Distinguished Name, for example, in order to inject a Common Name that would allow bypassing the certificate subject verification.Affected versions of Node.js that do not accept multi-value Relative Distinguished Names and are thus not vulnerable to such attacks themselves. However, third-party code that uses node's ambiguous presentation of certificate subjects may be vulnerable.

Published: 2022-02-24 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2021-44533 is rated Exploit Available (56.6/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 0.36%). 1 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2021-44533

EDB-ID Source Kind Published Link
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2021-44533

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-03-04 0.24% 0.36% +0.12%
2 2026-03-01 0.36% 0.24% -0.12%
3 2026-02-04 — 0.36% —

Full EPSS history (57 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2021-44533

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.3 3.1 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:L)
Attackers could change some data, but it’s limited—not everything goes.
Availability (A:N)
Service keeps running; no real outage angle.
 3.9 1.4 [email protected]
5.0 2.0 MEDIUM
AV:N/AC:L/Au:N/C:N/I:P/A:N Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:N)
No availability impact.
 10.0 2.9 [email protected]

Weakness enumeration for CVE-2021-44533

OS Trackers for CVE-2021-44533

vendor priority summary link
alpine medium CVE-2021-44533: 3 source package rows (nodejs, nodejs-current, openjdk11); 127 state rows across 15 repos (3.12-main, 3.17-community, 3.17-main, 3.18-community, 3.18-main, 3.19-community, 3.19-main, 3.20-community, 3.20-main, 3.21-community, 3.21-main, 3.22-community, 3.22-main, edge-community, edge-main); fixed 22, open 105. https://security.alpinelinux.org/vuln/CVE-2021-44533
debian not yet assigned CVE-2021-44533 not yet assigned priority: Debian including 1 source packages (nodejs), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2021-44533
gentoo low CVE-2021-44533: 1 GLSA(s) (202405-29), 1 atom(s) (net-libs/nodejs); latest impact low. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2021-44533
redhat medium — https://access.redhat.com/security/cve/CVE-2021-44533
suse medium CVE-2021-44533 severity moderate: SUSE including 49 source package names (12-10.1:nodejs12-12.22.9-4.25.1, 12-10.1:npm12-12.22.9-4.25.1, …), 108 product×package rows across 21 product lines (Container bci/nodejs, SUSE Enterprise Storage 7, … (21 product lines)): Fixed 77, Known Not Affected 31. https://www.suse.com/security/cve/CVE-2021-44533/
ubuntu medium CVE-2021-44533 medium priority: Ubuntu including 1 source packages (nodejs), 15 status rows across 15 suites (bionic, focal, hirsute, impish, jammy, kinetic, lunar, mantic, noble, oracular, plucky, questing, trusty, upstream, xenial): not-affected 8, ignored 5, needed 1, released 1. https://ubuntu.com/security/CVE-2021-44533

Affected software / configurations for CVE-2021-44533

Vendor Product Version Raw CPE
nodejs node.js < 12.22.9 cpe:2.3:a:nodejs:node.js:*:*:*:*:-:*:*:*
nodejs node.js >= 14.0.0, < 14.18.3 cpe:2.3:a:nodejs:node.js:*:*:*:*:-:*:*:*
nodejs node.js >= 16.0.0, < 16.13.2 cpe:2.3:a:nodejs:node.js:*:*:*:*:-:*:*:*
nodejs node.js >= 17.0.0, < 17.3.1 cpe:2.3:a:nodejs:node.js:*:*:*:*:-:*:*:*
oracle graalvm 20.3.5 cpe:2.3:a:oracle:graalvm:20.3.5:*:*:*:enterprise:*:*:*
oracle graalvm 21.3.1 cpe:2.3:a:oracle:graalvm:21.3.1:*:*:*:enterprise:*:*:*
oracle graalvm 22.0.0.2 cpe:2.3:a:oracle:graalvm:22.0.0.2:*:*:*:enterprise:*:*:*
oracle mysql_cluster < 8.0.29 cpe:2.3:a:oracle:mysql_cluster:*:*:*:*:*:*:*:*
oracle mysql_cluster 8.0.29 cpe:2.3:a:oracle:mysql_cluster:8.0.29:*:*:*:*:*:*:*
oracle mysql_connectors <= 8.0.28 cpe:2.3:a:oracle:mysql_connectors:*:*:*:*:*:*:*:*
oracle mysql_enterprise_monitor <= 8.0.29 cpe:2.3:a:oracle:mysql_enterprise_monitor:*:*:*:*:*:*:*:*
oracle mysql_server <= 5.7.37 cpe:2.3:a:oracle:mysql_server:*:*:*:*:*:*:*:*
oracle mysql_server >= 8.0.0, <= 8.0.28 cpe:2.3:a:oracle:mysql_server:*:*:*:*:*:*:*:*
oracle mysql_workbench <= 8.0.28 cpe:2.3:a:oracle:mysql_workbench:*:*:*:*:*:*:*:*
oracle peoplesoft_enterprise_peopletools 8.58 cpe:2.3:a:oracle:peoplesoft_enterprise_peopletools:8.58:*:*:*:*:*:*:*
oracle peoplesoft_enterprise_peopletools 8.59 cpe:2.3:a:oracle:peoplesoft_enterprise_peopletools:8.59:*:*:*:*:*:*:*
debian debian_linux 11.0 cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*

References for CVE-2021-44533

cvelogic Threat Intelligence