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CVE-2021-36373

21
FAUCET Score

CVE-2021-36373 is a denial-of-service vulnerability affecting Apache Ant versions prior to 1.9.16 and 1.10.11, as well as related Oracle products. An attacker can craft a malicious TAR archive that, when processed by Apache Ant, causes excessive memory allocation leading to an out-of-memory error and disruption of build processes. This vulnerability has a CVSS score of 5.5 (Medium), indicating a local attack vector with low complexity, requiring user interaction, and resulting in high availability impact. There is currently no evidence of active exploitation, and no public exploit code or significant community discussion has been observed.

Impacted Technologies

VendorProductVersion(s)CPE
>= 1.9.0, < 1.9.16CPE matchmatch criteria
cpe:2.3:a:apache:ant:*:*:*:*:*:*:*:*
>= 1.10.0, < 1.10.11CPE matchmatch criteria
cpe:2.3:a:apache:ant:*:*:*:*:*:*:*:*
9.3.6CPE matchmatch criteria
cpe:2.3:a:oracle:agile_plm:9.3.6:*:*:*:*:*:*:*
14.5CPE matchmatch criteria
cpe:2.3:a:oracle:banking_trade_finance:14.5:*:*:*:*:*:*:*
14.5CPE matchmatch criteria
cpe:2.3:a:oracle:banking_treasury_management:14.5:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.5MEDIUM

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
2.51%
Probability of exploitation in next 30 days
EPSS Percentile
83.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0251 is in the 92nd percentile among its peer group of 5,760 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (20)

mavenpatch availablevia ghsa
Product: org.apache.ant:antFixed in: 1.10.11
mavenpatch availablevia ghsa
Product: org.apache.ant:antFixed in: 1.9.16
microsoftpatch availablevia msrc
Product: 19033-16823Fixed in: 1.5.0-6
microsoftpatch availablevia msrc
Product: 19034-17084Fixed in: 1.14.0-2
microsoftpatch availablevia msrc
Product: 18347-17084Fixed in: 1.14.0-2
microsoftpatch availablevia msrc
Product: azl3 javapackages-bootstrap 1.5.0-4 on Azure Linux 3.0Fixed in: 1.14.0-2
microsoftpatch availablevia msrc
Product: azl3 javapackages-bootstrap 1.14.0-2 on Azure Linux 3.0Fixed in: 1.14.0-2
microsoftpatch availablevia msrc
Product: cm1 ant 1.10.11-1 on CBL Mariner 1.0Fixed in: 1.10.11-1
microsoftpatch availablevia msrc
Product: cbl2 javapackages-bootstrap 1.5.0-6 on CBL Mariner 2.0Fixed in: 1.5.0-6
microsoftpatch availablevia msrc
Product: 19032-16820Fixed in: 1.10.11-1
oraclepatch availablevia nvd_reference
View patch
redhatpatch availablevia redhat_api
Product: RHPAM 7.13.0 asyncFixed in: ant
View patch
redhatvendor investigatingvia redhat_api
Product: Red Hat OpenShift Container Platform 3.11Fixed in: jenkins
redhatvendor investigatingvia redhat_api
Product: Red Hat Software CollectionsFixed in: rh-maven36-ant
redhatvendor investigatingvia redhat_api
Product: Red Hat Integration Camel K 1Fixed in: ant
redhatvendor investigatingvia redhat_api
Product: Red Hat Fuse 7Fixed in: ant
redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: ant:1.10/ant
redhatend of lifevia redhat_api
Product: Red Hat OpenShift Container Platform 4Fixed in: openshift4/ose-metering-hive
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: ant
redhatend of lifevia redhat_api
Product: Red Hat OpenShift Container Platform 4Fixed in: jenkins

Vendor Advisories (3)

mavenGHSA-q5r4-cfpx-h6fhmedium

Improper Handling of Length Parameter Inconsistency in Apache Ant

Aug 2, 2021
microsoft2021-Jul/CVE-2021-36373Moderate

Apache Ant TAR archive denial of service vulnerability

Jul 13, 2021
redhatCVE-2021-36373Low

ant: excessive memory allocation when reading a specially crafted TAR archive

Jul 13, 2021

References

ant.apache.org / security.html
PatchVendor Advisory
lists.apache.org / thread.html/r27919fd4db07c487239c1d9771f480d89ce5ee2750aa9447309b709a%40%3Ccommits.groovy.apache.org%3E
lists.apache.org / thread.html/r544c9e8487431768465b8b2d13982c75123109bd816acf839d46010d%40%3Ccommits.groovy.apache.org%3E
lists.apache.org / thread.html/r54afdab05e01de970649c2d91a993f68a6b00cd73e6e34e16c832d46%40%3Cuser.ant.apache.org%3E
Mailing ListVendor Advisory
lists.apache.org / thread.html/rad36f470647c5a7c02dd78c9973356d2840766d132b597b6444e373a%40%3Cnotifications.groovy.apache.org%3E
lists.apache.org / thread.html/rf4bb79751a02889623195715925e4fd8932dd3c97e0ade91395a96c6%40%3Cdev.myfaces.apache.org%3E
security.netapp.com / advisory/ntap-20210819-0007
Third Party Advisory
oracle.com / security-alerts/cpuapr2022.html
PatchThird Party Advisory
oracle.com / security-alerts/cpujan2022.html
PatchThird Party Advisory
oracle.com / security-alerts/cpujul2022.html
Not Applicable
oracle.com / security-alerts/cpuoct2021.html
PatchThird Party Advisory