CVE-2021-4213

A flaw was found in JSS, where it did not properly free up all memory. Over time, the wasted memory builds up in the server memory, saturating the server’s RAM. This flaw allows an attacker to force the invocation of an out-of-memory process, causing a denial of service.

Published: 2022-08-24 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2021-4213 is rated Moderate Risk (52.9/100): CVSS High severity, with medium exploitation likelihood (EPSS 1.15%). Review affected assets and schedule remediation.

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

Exploit prediction scoring system (EPSS) score for CVE-2021-4213

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 2026-06-15 0.20% 1.15% +0.95%
2 2025-11-21 2.02% 0.20% -1.82%
3 2025-11-18 — 2.02% —

Full EPSS history (16 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2021-4213

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H 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:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.9 3.6 [email protected]

Weakness enumeration for CVE-2021-4213

OS Trackers for CVE-2021-4213

vendor priority summary link
debian not yet assigned CVE-2021-4213 not yet assigned priority: Debian including 1 source packages (jss), 4 status rows across 4 suites (bookworm, bullseye, forky, sid): resolved 3, open 1. https://security-tracker.debian.org/tracker/CVE-2021-4213
redhat medium — https://access.redhat.com/security/cve/CVE-2021-4213
ubuntu medium CVE-2021-4213 medium priority: Ubuntu including 1 source packages (jss), 14 status rows across 14 suites (bionic, focal, impish, jammy, kinetic, lunar, mantic, noble, oracular, plucky, questing, trusty, upstream, xenial): ignored 7, needs-triage 7. https://ubuntu.com/security/CVE-2021-4213

Affected software / configurations for CVE-2021-4213

Vendor Product Version Raw CPE
dogtagpki network_security_services_for_java < 4.9.3 cpe:2.3:a:dogtagpki:network_security_services_for_java:*:*:*:*:*:*:*:*
dogtagpki network_security_services_for_java >= 5.0.0, < 5.1.0 cpe:2.3:a:dogtagpki:network_security_services_for_java:*:*:*:*:*:*:*:*
redhat enterprise_linux 8.0 cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*
debian debian_linux 10.0 cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
debian debian_linux 11.0 cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*

References for CVE-2021-4213

cvelogic Threat Intelligence