Which products and versions are affected by CVE-2021-39144?

Affected: Snapmanager (Netapp); Business Activity Monitoring (Oracle) versions 12.2.1.4.0; Commerce Guided Search (Oracle) versions 11.3.2, among others. The full list is in the CVE brief.

Is CVE-2021-39144 being exploited in the wild?

It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Mar 8, 2023.

Is CVE-2021-39144 in the CISA KEV catalog?

Yes. It was added on Mar 10, 2023 with a federal remediation due date of Mar 31, 2023.

Is there a public exploit for CVE-2021-39144?

Public exploit code is available.

How urgently should CVE-2021-39144 be patched?

Brandefense priority: patch immediately, because it is listed as exploited in the wild.

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Vulnerability Intelligence

CVE-2021-39144

HighExploitedPublic exploit

XStream is vulnerable to a Remote Command Execution attack

Published Aug 25, 2021 · Updated Aug 4, 2026 · Also known as DEBIAN-CVE-2021-39144, GHSA-j9h8-phrw-h4fh, UBUNTU-CVE-2021-39144

Key Facts

Patch immediately

CVE-2021-39144 is a high-severity vulnerability (CVSS 8.5 v3.1) affecting Snapmanager (Netapp), Business Activity Monitoring (Oracle), Commerce Guided Search (Oracle) and 18 more products.
It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Mar 8, 2023. Public exploit code is available.
EPSS estimates a 98% probability of exploitation in the next 30 days.
Fixed versions are available, including com.thoughtworks.xstream:xstream 1.4.18, libxstream-java 1.4.11.1-1+deb10u3, libxstream-java 1.4.11.1-1+deb10u4build0.18.04.1.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.

CVSS v3.1

8.5

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

EPSS (30-day exploit likelihood)

98%

Higher than 99.9% of all scored CVEs

Exploited in the wild

Yes

4 catalog listings

Public exploit code

Available

Proof-of-concept or weaponized module

Get the full CVE-2021-39144 brief as a PDF

Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.

Description

XStream is a simple library to serialize objects to XML and back again. In affected versions this vulnerability may allow a remote attacker has sufficient rights to execute commands of the host only by manipulating the processed input stream. No user is affected, who followed the recommendation to setup XStream's security framework with a whitelist limited to the minimal required types. XStream 1.4.18 uses no longer a blacklist by default, since it cannot be secured for general purpose.

Known-Exploited Catalog Listings

Catalog	Added	Remediation due	Ransomware use
CISA KEV	Mar 10, 2023	Mar 31, 2023	Not reported
Industry KEV feed	Mar 8, 2023	Mar 31, 2023	Not reported
CIRCL KEV	Mar 10, 2023	Mar 31, 2023	Not reported
ENISA EUVD	Mar 10, 2023	n/a	Not reported

Required action: Apply updates per vendor instructions.

Affected Products

83 affected entries in total

Product	Affected versions	Fixed in
SnapmanagerNetapp	See advisory	n/a
Business Activity MonitoringOracle	12.2.1.4.0	n/a
Commerce Guided SearchOracle	11.3.2	n/a
Communications Billing And Revenue Management Elastic Charging EngineOracle	11.3, 12.0	n/a
Communications Cloud Native Core Automated Test SuiteOracle	1.9.0	n/a

16 more affected products in the full CVE brief

Patched Releases

com.thoughtworks.xstream:xstream

1.4.18

libxstream-java

1.4.11.1-1+deb10u3, 1.4.11.1-1+deb10u4build0.18.04.1, 1.4.11.1-1+deb9u4, 1.4.11.1-1ubuntu0.3, 1.4.15-3+deb11u1, 1.4.18-1, 1.4.18-2ubuntu0.1, 1.4.7-1ubuntu0.1+esm1, 1.4.8-1ubuntu0.1+esm1

Xstream

0:1.3.1-16.el7_9, 1.3.1-16.amzn2, 1.3.1-16.el7_9, 1.4.18-1.1, 1.4.18-3.14.1, 1.4.18-lp152.2.12.1, 1.4.18

xstream-benchmark

1.4.18-1.1, 1.4.18-3.14.1, 1.4.18-lp152.2.12.1

xstream-javadoc

1.3.1-16.amzn2, 1.3.1-16.el7_9, 1.4.18-1.1, 1.4.18-3.14.1, 1.4.18-lp152.2.12.1

xstream-parent

1.4.18-1.1, 1.4.18-3.14.1, 1.4.18-lp152.2.12.1

Timeline

Publicly disclosed
Aug 25, 2021
Added to Industry KEV feed
Mar 8, 2023
Added to CISA KEV
Mar 10, 2023
Added to CIRCL KEV
Mar 10, 2023
Added to ENISA EUVD
Mar 10, 2023
Last updated
Aug 4, 2026

Weakness Type

CWE-94 Improper Control of Generation of Code ('Code Injection')
CWE-306 Missing Authentication for Critical Function
CWE-502 Deserialization of Untrusted Data

References

15 more references in the full CVE brief

FAQ

Common Questions.

XStream is a simple library to serialize objects to XML and back again.
Affected: Snapmanager (Netapp); Business Activity Monitoring (Oracle) versions 12.2.1.4.0; Commerce Guided Search (Oracle) versions 11.3.2, among others. The full list is in the CVE brief.
It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Mar 8, 2023.
Yes. It was added on Mar 10, 2023 with a federal remediation due date of Mar 31, 2023.
Public exploit code is available.
Fixed versions are available, including com.thoughtworks.xstream:xstream 1.4.18, libxstream-java 1.4.11.1-1+deb10u3, libxstream-java 1.4.11.1-1+deb10u4build0.18.04.1.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.

Is CVE-2021-39144 Running On Your Attack Surface?

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