Which products and versions are affected by CVE-2018-11776?

Affected: Struts (Apache) versions >= 2.3 to 2.3.34; Active Iq Unified Manager (Netapp); Oncommand Insight (Netapp), among others. The full list is in the CVE brief.

Is CVE-2018-11776 being exploited in the wild?

It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Dec 18, 2018 and is known to be used in ransomware campaigns.

Is CVE-2018-11776 in the CISA KEV catalog?

Yes. It was added on Nov 3, 2021 with a federal remediation due date of May 3, 2022.

Is there a public exploit for CVE-2018-11776?

Public exploit code is available.

Is there a fix for CVE-2018-11776?

Fixed versions are available, including Struts 2.3.35, Communications Policy Management 12.5.0, Mysql Enterprise Monitor <=3.4.9.4237.

How urgently should CVE-2018-11776 be patched?

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

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Vulnerability Intelligence

CVE-2018-11776

Q: How urgently should CVE-2018-11776 be patched?

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

HighExploitedPublic exploit

Apache Struts vulnerable to remote command execution (RCE) due to improper input validation

Published Oct 18, 2018 · Updated Jul 8, 2026 · Also known as GHSA-cr6j-3jp9-rw65

Key Facts

Patch immediately

CVE-2018-11776 is a high-severity vulnerability (CVSS 8.1 v3.1) affecting Struts (Apache), Active Iq Unified Manager (Netapp), Oncommand Insight (Netapp) and 6 more products.
It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Dec 18, 2018 and is known to be used in ransomware campaigns. Public exploit code is available.
EPSS estimates a 100% probability of exploitation in the next 30 days.
Fixed versions are available, including Struts 2.3.35, Communications Policy Management 12.5.0, Mysql Enterprise Monitor <=3.4.9.4237.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.

CVSS v3.1

8.1

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

EPSS (30-day exploit likelihood)

100%

Higher than 99.9% of all scored CVEs

Exploited in the wild

Yes

4 catalog listings, used by ransomware

Public exploit code

Available

Proof-of-concept or weaponized module

Get the full CVE-2018-11776 brief as a PDF

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

Description

Apache Struts versions 2.3 to 2.3.34 and 2.5 to 2.5.16 suffer from possible Remote Code Execution when alwaysSelectFullNamespace is true (either by user or a plugin like Convention Plugin) and then: results are used with no namespace and in same time, its upper package have no or wildcard namespace and similar to results, same possibility when using url tag which doesn't have value and action set and in same time, its upper package have no or wildcard namespace.

Known-Exploited Catalog Listings

Catalog	Added	Remediation due	Ransomware use
CISA KEV	Nov 3, 2021	May 3, 2022	Not reported
Industry KEV feed	Dec 18, 2018	May 3, 2022	Known
CIRCL KEV	Nov 3, 2021	May 3, 2022	Not reported
ENISA EUVD	Nov 3, 2021	n/a	Not reported

Required action: Apply updates per vendor instructions.

Affected Products

12 affected entries in total

Product	Affected versions	Fixed in
StrutsApache	>= 2.3 to 2.3.34	2.3.35
Active Iq Unified ManagerNetapp	See advisory	n/a
Oncommand InsightNetapp	See advisory	n/a
Oncommand Workflow AutomationNetapp	See advisory	n/a
SnapcenterNetapp	See advisory	n/a

4 more affected products in the full CVE brief

Patched Releases

Struts

2.3.35

Communications Policy Management

12.5.0

Mysql Enterprise Monitor

<=3.4.9.4237

org.apache.struts:struts2-core

2.3.35, 2.5.17

Timeline

Publicly disclosed
Oct 18, 2018
Added to Industry KEV feed
Dec 18, 2018
Added to CISA KEV
Nov 3, 2021
Added to CIRCL KEV
Nov 3, 2021
Added to ENISA EUVD
Nov 3, 2021
Last updated
Jul 8, 2026

Weakness Type

CWE-20 Improper Input Validation

References

15 more references in the full CVE brief

FAQ

Common Questions.

Apache Struts versions 2.3 to 2.3.34 and 2.5 to 2.5.16 suffer from possible Remote Code Execution when alwaysSelectFullNamespace is true (either by user or a plugin like Convention Plugin) and then: results are used with no namespace and in same time, its upper package have no or wildcard namespace and similar to resu…
Affected: Struts (Apache) versions >= 2.3 to 2.3.34; Active Iq Unified Manager (Netapp); Oncommand Insight (Netapp), 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 Dec 18, 2018 and is known to be used in ransomware campaigns.
Yes. It was added on Nov 3, 2021 with a federal remediation due date of May 3, 2022.
Public exploit code is available.
Fixed versions are available, including Struts 2.3.35, Communications Policy Management 12.5.0, Mysql Enterprise Monitor <=3.4.9.4237.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.

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