`CVE-2022-21540` Oracle Java SE

Affected software	Oracle Java SE
Affected versions	Oracle Java SE: 7u343, 8u333, 11.0.15.1, 17.0.3.1, 18.0.1.1; Oracle GraalVM Enterprise Edition: 20.3.6, 21.3.2, 22.1.0
Severity	5.3 Medium CVSS 3.1
Fixed in	Oracle Critical Patch Update July 2022
Weakness	Use after free (CWE-416)
Published	19 Jul 2022
Updated	3 Nov 2026

Description

Vulnerability in the Oracle Java SE, Oracle GraalVM Enterprise Edition product of Oracle Java SE (component: Hotspot). Supported versions that are affected are Oracle Java SE: 7u343, 8u333, 11.0.15.1, 17.0.3.1, 18.0.1.1; Oracle GraalVM Enterprise Edition: 20.3.6, 21.3.2 and 22.1.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise Oracle Java SE, Oracle GraalVM Enterprise Edition. Successful attacks of this vulnerability can result in unauthorized read access to a subset of Oracle Java SE, Oracle GraalVM Enterprise Edition accessible data. Note: This vulnerability applies to Java deployments, typically in clients running sandboxed Java Web Start applications or sandboxed Java applets, that load and run untrusted code (e.g., code that comes from the internet) and rely on the Java sandbox for security. This vulnerability can also be exploited by using APIs in the specified Component, e.g., through a web service which supplies data to the APIs. CVSS 3.1 Base Score 5.3 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N).

Exploitation status

No public exploit

No exploit has been reported in the sources we check. Published 4 years ago.

CISA KEV not listed
VulnCheck KEV not listed
CISA Vulnrichment exploitation: none
Indexed PoC none indexed
EPSS 4.2% chance in 30 days

Waratek protection

Outside Waratek scope

A Java vulnerability, but not one Waratek protects. It affects only Java on a user's desktop (applets, Web Start, JavaFX, the installer), sits in a product the Waratek agent can't be installed into, or is in a package we don't expect in business applications. The decision below says which.

Protection none
Action not pursued none
Review automated AI triage
Record active

Decided by	A researcher's recorded decision for this specific CVE
Finding	An AI triage run set this CVE's status to Outside Waratek scope.

Decided by

A researcher's recorded decision for this specific CVE

Finding

An AI triage run set this CVE's status to Outside Waratek scope.

Waratek research note

written 2026-11-13

Written by a Waratek engineer who reviewed this CVE. Their decision sets the status above, ahead of every automated rule except a withdrawal.

Comments

The flaw is inside the JDK's just-in-time compiler. When it compiled certain code, it could hand that code a class the code was not allowed to reach, so untrusted code could read a small amount of data it should not see. No public exploit exists. Oracle fixed it in native C++ in ciEnv.cpp (ciEnv::get_constant_by_index_impl); that work runs inside HotSpot below bytecode and never crosses an ARMR hook, so agent rules and virtual patches cannot reach it. Upgrade the JDK to a release that includes JDK-8281859, such as 8u342, 11.0.16 or 17.0.4 or later.

Affected software and releases

Oracle advisories

Advisory	Type	Quarter	Products Oracle names in its risk matrix
Oracle Critical Patch Update July 2022 ↗	CPU	2022-Q3	Oracle Java SE / Hotspot (Oracle Java SE: 7u343, 8u333, 11.0.15.1, 17.0.3.1, 18.0.1.1; Oracle GraalVM Enterprise Edition: 20.3.6, 21.3.2, 22.1.0) Oracle's note: This vulnerability applies to Java deployments, typically in clients running sandboxed Java Web Start applications or sandboxed Java applets, that load and run untrusted code (e.g., code that comes from the internet) and rely on the Java sandbox for security. This vulnerability can also be exploited by using APIs in the specified Component, e.g., through a web service which supplies data to the APIs.

Advisory

Type

Quarter

Products Oracle names in its risk matrix

Oracle Critical Patch Update July 2022 ↗

CPU

2022-Q3

Oracle Java SE / Hotspot (Oracle Java SE: 7u343, 8u333, 11.0.15.1, 17.0.3.1, 18.0.1.1; Oracle GraalVM Enterprise Edition: 20.3.6, 21.3.2, 22.1.0)
Oracle's note: This vulnerability applies to Java deployments, typically in clients running sandboxed Java Web Start applications or sandboxed Java applets, that load and run untrusted code (e.g., code that comes from the internet) and rely on the Java sandbox for security. This vulnerability can also be exploited by using APIs in the specified Component, e.g., through a web service which supplies data to the APIs.

Oracle components and versions

Family	Component	Versions, as Oracle lists them	Read as
Oracle Java SE	Hotspot	Oracle Java SE: 7u343, 8u333, 11.0.15.1, 17.0.3.1, 18.0.1.1; Oracle GraalVM Enterprise Edition: 20.3.6, 21.3.2, 22.1.0	7.0.343.0 · 8.0.333.0 · 11.0.15.0 · 17.0.3.0 · 18.0.1.0 · 20.3.6.0 · 21.3.2.0 · 22.1.0.0

Family

Component

Versions, as Oracle lists them

Read as

Oracle Java SE

Hotspot

Oracle Java SE: 7u343, 8u333, 11.0.15.1, 17.0.3.1, 18.0.1.1; Oracle GraalVM Enterprise Edition: 20.3.6, 21.3.2, 22.1.0

7.0.343.0 · 8.0.333.0 · 11.0.15.0 · 17.0.3.0 · 18.0.1.0 · 20.3.6.0 · 21.3.2.0 · 22.1.0.0

Products and versions

15 products, 156 version entries

Source	Vendor	Product	Scheme	Affected versions
nvd	azul	zulu	generic	6.47 · 7.54 · 8.62 · 11.56 · 13.48 · 15.40 · 17.34 · 18.30
nvd	debian	debian linux	generic	10.0 · 11.0
nvd	fedoraproject	fedora	generic	36
nvd	netapp	7-mode transition tool	generic	any version
nvd	netapp	active iq unified manager	generic	any version
nvd	netapp	cloud insights acquisition unit	generic	any version
nvd	netapp	cloud secure agent	generic	any version
nvd	netapp	hci compute node	generic	any version
nvd	netapp	hci management node	generic	any version
nvd	netapp	oncommand insight	generic	any version
nvd	netapp	solidfire	generic	any version
nvd	oracle	graalvm	javase	20.3.6 · 21.3.2 · 22.1.0
nvd	oracle	jdk	javase	1.7.0:update343 · 1.8.0:update333 · 11.0.15.1 · 17.0.3.1 · 18.0.1.1
nvd	oracle	jre	javase	1.7.0:update343 · 1.8.0:update333 · 11.0.15.1 · 17.0.3.1 · 18.0.1.1
nvd	oracle	openjdk	javase	7 · 7:update1 · 7:update2 · 7:update3 · 7:update4 · 7:update5 · 7:update6 · 7:update7 · 7:update9 · 7:update10 · 7:update11 · 7:update13 · 7:update15 · 7:update17 · 7:update21 · 7:update25 · 7:update40 · 7:update45 · 7:update51 · 7:update55 · 7:update60 · 7:update65 · 7:update67 · 7:update72 · 7:update76 · 7:update80 · 7:update85 · 7:update91 · 7:update95 · 7:update97 · 7:update99 · 7:update101 · 7:update111 · 7:update121 · 7:update131 · 7:update141 · 7:update151 · 7:update161 · 7:update171 · 7:update181 · 7:update191 · 7:update201 · 7:update211 · 7:update221 · 7:update231 · 7:update241 · 7:update251 · 7:update261 · 7:update271 · 7:update281 · 7:update291 · 7:update301 · 7:update311 · 7:update321 · 8 · 8:milestone1 · 8:milestone2 · 8:milestone3 · 8:milestone4 · 8:milestone5 · 8:update5 · 8:milestone6 · 8:milestone7 · 8:milestone8 · 8:milestone9 · 8:update11 · 8:update20 · 8:update25 · 8:update31 · 8:update40 · 8:update45 · 8:update51 · 8:update60 · 8:update65 · 8:update66 · 8:update71 · 8:update72 · 8:update73 · 8:update74 · 8:update77 · 8:update91 · 8:update92 · 8:update101 · 8:update102 · 8:update111 · 8:update112 · 8:update121 · 8:update131 · 8:update141 · 8:update151 · 8:update152 · 8:update161 · 8:update162 · 8:update171 · 8:update172 · 8:update181 · 8:update191 · 8:update192 · 8:update201 · 8:update202 · 8:update211 · 8:update212 · 8:update221 · 8:update222 · 8:update231 · 8:update232 · 8:update241 · 8:update242 · 8:update252 · 8:update262 · 8:update271 · 8:update281 · 8:update282 · 8:update291 · 8:update301 · 8:update302 · 8:update312 · 8:update322 · 8:update332 · ≥ 11.0.0.0 and ≤ 11.0.15.0 · ≥ 13.0.0.0 and ≤ 13.0.11.0 · ≥ 15.0.0.0 and ≤ 15.0.7.0 · ≥ 17.0.0.0 and ≤ 17.0.3.0 · 18

Source

Vendor

Product

Scheme

Affected versions

nvd

azul

zulu

generic

6.47 · 7.54 · 8.62 · 11.56 · 13.48 · 15.40 · 17.34 · 18.30

nvd

debian

debian linux

generic

10.0 · 11.0

nvd

fedoraproject

fedora

generic

nvd

netapp

7-mode transition tool

generic

any version

nvd

netapp

active iq unified manager

generic

any version

nvd

netapp

cloud insights acquisition unit

generic

any version

nvd

netapp

cloud secure agent

generic

any version

nvd

netapp

hci compute node

generic

any version

nvd

netapp

hci management node

generic

any version

nvd

netapp

oncommand insight

generic

any version

nvd

netapp

solidfire

generic

any version

nvd

oracle

graalvm

javase

20.3.6 · 21.3.2 · 22.1.0

nvd

oracle

jdk

javase

1.7.0:update343 · 1.8.0:update333 · 11.0.15.1 · 17.0.3.1 · 18.0.1.1

nvd

oracle

jre

javase

1.7.0:update343 · 1.8.0:update333 · 11.0.15.1 · 17.0.3.1 · 18.0.1.1

nvd

oracle

openjdk

javase

7 · 7:update1 · 7:update2 · 7:update3 · 7:update4 · 7:update5 · 7:update6 · 7:update7 · 7:update9 · 7:update10 · 7:update11 · 7:update13 · 7:update15 · 7:update17 · 7:update21 · 7:update25 · 7:update40 · 7:update45 · 7:update51 · 7:update55 · 7:update60 · 7:update65 · 7:update67 · 7:update72 · 7:update76 · 7:update80 · 7:update85 · 7:update91 · 7:update95 · 7:update97 · 7:update99 · 7:update101 · 7:update111 · 7:update121 · 7:update131 · 7:update141 · 7:update151 · 7:update161 · 7:update171 · 7:update181 · 7:update191 · 7:update201 · 7:update211 · 7:update221 · 7:update231 · 7:update241 · 7:update251 · 7:update261 · 7:update271 · 7:update281 · 7:update291 · 7:update301 · 7:update311 · 7:update321 · 8 · 8:milestone1 · 8:milestone2 · 8:milestone3 · 8:milestone4 · 8:milestone5 · 8:update5 · 8:milestone6 · 8:milestone7 · 8:milestone8 · 8:milestone9 · 8:update11 · 8:update20 · 8:update25 · 8:update31 · 8:update40 · 8:update45 · 8:update51 · 8:update60 · 8:update65 · 8:update66 · 8:update71 · 8:update72 · 8:update73 · 8:update74 · 8:update77 · 8:update91 · 8:update92 · 8:update101 · 8:update102 · 8:update111 · 8:update112 · 8:update121 · 8:update131 · 8:update141 · 8:update151 · 8:update152 · 8:update161 · 8:update162 · 8:update171 · 8:update172 · 8:update181 · 8:update191 · 8:update192 · 8:update201 · 8:update202 · 8:update211 · 8:update212 · 8:update221 · 8:update222 · 8:update231 · 8:update232 · 8:update241 · 8:update242 · 8:update252 · 8:update262 · 8:update271 · 8:update281 · 8:update282 · 8:update291 · 8:update301 · 8:update302 · 8:update312 · 8:update322 · 8:update332 · ≥ 11.0.0.0 and ≤ 11.0.15.0 · ≥ 13.0.0.0 and ≤ 13.0.11.0 · ≥ 15.0.0.0 and ≤ 15.0.7.0 · ≥ 17.0.0.0 and ≤ 17.0.3.0 · 18

References

URL	Tags
https://access.redhat.com/errata/RHSA-2022:5681	ADVISORY, RHSA-2022:5681
https://access.redhat.com/security/cve/CVE-2022-21540	REPORT, RHSA-2022:5681
https://access.redhat.com/errata/RHSA-2022:5683	ADVISORY, RHSA-2022:5683
https://access.redhat.com/errata/RHSA-2022:5684	ADVISORY, RHSA-2022:5684
https://access.redhat.com/errata/RHSA-2022:5685	ADVISORY, RHSA-2022:5685
https://access.redhat.com/errata/RHSA-2022:5687	ADVISORY, RHSA-2022:5687
https://access.redhat.com/errata/RHSA-2022:5695	ADVISORY, RHSA-2022:5695
https://access.redhat.com/errata/RHSA-2022:5696	ADVISORY, RHSA-2022:5696
https://access.redhat.com/errata/RHSA-2022:5697	ADVISORY, RHSA-2022:5697
https://access.redhat.com/errata/RHSA-2022:5698	ADVISORY, RHSA-2022:5698

URL

Timeline

Published	2022-07-19	By the CVE Program.
NVD record modified	2026-06-17	NVD's own last-modified date for this record.
Last VRT activity	2026-11-03	Most recent commit touching this CVE's classification, patch or rule file.
Classification created	2026-11-13	First commit adding this CVE's research note.

Published

2022-07-19

By the CVE Program.

NVD record modified

2026-06-17

NVD's own last-modified date for this record.

Last VRT activity

2026-11-03

Most recent commit touching this CVE's classification, patch or rule file.

Classification created

2026-11-13

First commit adding this CVE's research note.

How VRT decided (4 of 24 rules ran)

4 of 24 rules ran. The rest didn't run because an earlier rule had already settled the CVE.

# Rule Outcome Status Detail

identity: Does this identifier describe a vulnerability at all? the first rule that matches decides

1 rejected no match CVE Program withdrawal of this identifier

scope: Is it a vulnerability Waratek protects? the first rule that matches decides

2 armr-patch-file no match An ARMR patch file on disk for this CVE

3 armr-secure-rule-file no match An ARMR security-rule template on disk for this CVE

4 manual-classification decided it matched Outside Waratek scope An AI triage run set this CVE's status to Outside Waratek scope.

5 manual classification not reached Manual classification of this CVE in the legacy dataset

6 non-java-upstream not reached A root cause in non-Java code: an OS kernel, a C library, or a bundled runtime

7 oracle-component not reached The defect being in a component of a tracked product the agent does not reach: JavaFX, the Java SE installer, the JInitiator browser plug-in, the native WebLogic proxy plug-in, or a native part of Oracle Application Server or Collaboration Suite (HTTP Server, Web Cache, Internet Directory, mail and calendar servers). Oracle gives these no CPE of their own and names them only in the description.

8 java-client-side not reached Oracle's own risk-matrix note saying the CVE is reached only through untrusted code in the Java sandbox (applets, Web Start) or only through a client installation of Java, so a server running its own trusted code is not exposed

9 osv-maven not reached An OSV.dev record of this CVE affecting a package published to Maven Central. When every such package is one business applications do not use (Minecraft mods and launchers, Fastjson) and no tracked product is named by CPE, it settles the CVE as Outside Waratek scope instead

10 cna-maven-package not reached An affected Maven artifact named by the CNA itself

11 known-cpe-product not reached An NVD CPE naming a product ARMR tracks

12 cna-cpe-product not reached A CPE the CNA published naming a tracked product. Oracle publishes these on advisory day, months before NVD.

13 oracle-advisory-family not reached A tracked product family named in Oracle's own risk matrix. CPE cannot carry a suite name, only a module.

14 cna-named-product not reached A tracked product named in words by the CVE's own CNA, on a record with no CPE yet. Apache and Eclipse publish these on advisory day, before NVD adds CPE data.

15 non-deployable-product not reached The only affected product being a sealed appliance image, where Java runs but no -javaagent can be attached

16 unmatched-product not reached No tracked product matched above, and none present at all

disposition: What do we do about one that is? every rule runs

17 patch-hint not reached A reference pointing at the upstream fix: a commit, a PR, a Red Hat bug

18 open-source-maven not reached The affected package being open source on Maven, so the fix can be read

19 poc-derivable not reached An indexed exploit clearing the evidence bar to reverse-engineer, where there is no source to read

20 no-exploit not reached Nothing to build a rule from yet: no published exploit, no CISA record of exploitation and no source-level change to read

21 secure-rule-match not reached A vulnerability class already blocked by an ARMR security rule

22 exploited-no-fix-or-poc not reached Somebody exploiting this CVE (a CISA or VulnCheck KEV listing, or a CISA verdict of active exploitation), with no fix, source code or PoC to build a rule from

23 below-action-threshold not reached Medium or Low severity, no CISA or VulnCheck KEV listing, no PoC clearing the evidence bar, no CISA verdict, no Oracle advisory

24 no-exploit-published not reached Exploit code for this candidate, published in a reviewed catalogue or a GitHub repository with 5 or more stars, or in use per CISA or VulnCheck; not only a CISA verdict, a forecast, or nothing at all

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