CVE-2020-27822

A flaw was found in Wildfly affecting versions 19.0.0.Final, 19.1.0.Final, 20.0.0.Final, 20.0.1.Final, and 21.0.0.Final. When an application uses the OpenTracing API's java-interceptors, there is a possibility of a memory leak. This flaw allows an attacker to impact the availability of the server. The highest threat from this vulnerability is to system availability.

Published: 2020-12-08 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2020-27822 is rated Moderate Risk (45.9/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 1.11%). 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-2020-27822

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 0.34% 1.11% +0.77%
2 2025-03-30 0.80% 0.34% -0.46%
3 2025-03-29 — 0.80% —

Full EPSS history (9 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2020-27822

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.9 3.1 MEDIUM
CVSS:3.1/AV:N/AC:H/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:H)
Even with access, the exploit needs extra luck, timing, or a fussy environment to actually work.
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.
 2.2 3.6 [email protected]
7.1 2.0 HIGH
AV:N/AC:M/Au:N/C:N/I:N/A:C Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:C)
Complete availability impact.
 8.6 6.9 [email protected]

Weakness enumeration for CVE-2020-27822

GitHub Security Advisory for CVE-2020-27822

GHSA-qx3p-9mmp-4v8h · Severity: medium · Ecosystem: maven — Wildfly has a memory leak vulnerability

OS Trackers for CVE-2020-27822

vendor priority summary link
redhat medium — https://access.redhat.com/security/cve/CVE-2020-27822

Affected software / configurations for CVE-2020-27822

Vendor Product Version Raw CPE
redhat wildfly 19.0.0 cpe:2.3:a:redhat:wildfly:19.0.0:*:*:*:*:*:*:*
redhat wildfly 19.1.0 cpe:2.3:a:redhat:wildfly:19.1.0:*:*:*:*:*:*:*
redhat wildfly 20.0.0 cpe:2.3:a:redhat:wildfly:20.0.0:*:*:*:*:*:*:*
redhat wildfly 20.0.1 cpe:2.3:a:redhat:wildfly:20.0.1:*:*:*:*:*:*:*
redhat wildfly 21.0.0 cpe:2.3:a:redhat:wildfly:21.0.0:*:*:*:*:*:*:*

References for CVE-2020-27822

URL Tags
https://bugzilla.redhat.com/show_bug.cgi?id=1904060 Issue Tracking Vendor Advisory
cvelogic Threat Intelligence