CVE-2018-11776

Exploitation

Exploited in the wild. Listed in the CISA Known Exploited Vulnerabilities catalog on 2021-11-03. Federal remediation due 2022-05-03.

SSVC decision

• ExploitationactiveCISA reports credible evidence of active exploitation.
• AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
• Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

99.99% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 100.0% of scored records. A rank, not a probability.

NVD base score

8.1 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

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

NVD analysis status

Analyzed. NVD last modified this record on 2026-06-17.

Red Hat severity

Critical. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2018-08-22 13:00Z8 YR AGO

Last updated

2025-10-21 23:45Z10 MO AGO

Reserved

2018-06-05

Assigning CNA

apache

Record state

PUBLISHED

Severity

High (CVSS 8.1)

CNA CVSS vector

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

Weaknesses

• CWE-20Improper Input ValidationClass

Data version

5.1

Document digest

32b9e6358a02109086e04ca68858fb98563beb434a513362eccefe2d319f6b58

• www.securitytracker.com1041888http://www.securitytracker.com/id/1041888vdb-entry
• www.exploit-db.com45367https://www.exploit-db.com/exploits/45367/exploit
• www.exploit-db.com45262https://www.exploit-db.com/exploits/45262/exploit
• www.securityfocus.com105125http://www.securityfocus.com/bid/105125vdb-entry
• www.securitytracker.com1041547http://www.securitytracker.com/id/1041547vdb-entry
• www.exploit-db.com45260https://www.exploit-db.com/exploits/45260/exploit
• lists.apache.org[announce] 20200131 Apache Software Foundation Security Report: 2019https://lists.apache.org/thread.html/r6d03e45b81eab03580cf7f8bb51cb3e9a1b10a2cc0c6a2d3cc92ed0c%40%3Cannounce.apache.org%3Emailing-list
• www.oracle.comhttp://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html
• www.oracle.comhttps://www.oracle.com/security-alerts/cpujul2020.html
• www.oracle.comhttps://www.oracle.com/technetwork/security-advisory/cpujan2019-5072801.html
• security.netapp.comhttps://security.netapp.com/advisory/ntap-20181018-0002/
• cwiki.apache.orghttps://cwiki.apache.org/confluence/display/WW/S2-057
• psirt.global.sonicwall.comhttps://psirt.global.sonicwall.com/vuln-detail/SNWLID-2018-0012
• www.oracle.comhttp://www.oracle.com/technetwork/security-advisory/alert-cve-2018-11776-5072787.html
• lgtm.comhttps://lgtm.com/blog/apache_struts_CVE-2018-11776
• security.netapp.comhttps://security.netapp.com/advisory/ntap-20180822-0001/
• www.arubanetworks.comhttp://www.arubanetworks.com/assets/alert/ARUBA-PSA-2018-005.txt
• github.comhttps://github.com/hook-s3c/CVE-2018-11776-Python-PoC
• packetstormsecurity.comhttp://packetstormsecurity.com/files/172830/Apache-Struts-Remote-Code-Execution.html
• www.cisa.govhttps://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-11776government-resource