CVE-2017-5637

Exploitation

Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.

SSVC decision

Not assessed by CISA

EPSS probability

73.06% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 99.4% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

NVD analysis status

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

Red Hat severity

Moderate. 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

2017-10-10 01:00Z9 YR AGO

Last updated

2024-09-17 00:16Z2 YR AGO

Reserved

2017-01-29

Assigning CNA

apache

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-306Missing Authentication for Critical FunctionBase
• CWE-400Uncontrolled Resource ConsumptionClass
• CWE-20Improper Input ValidationClass

Data version

5.1

Document digest

774de165729622a5c85d4d83780b1c5c0a2a69b480edc61ac09b7cfe7e5d0c7f

• lists.apache.org[dev] 20171009 [SECURITY] CVE-2017-5637: DOS attack on wchp/wchc four letter words (4lw)https://lists.apache.org/thread.html/58170aeb7a681d462b7fa31cae81110cbb749d2dc83c5736a0bb8370%40%3Cdev.zookeeper.apache.org%3Emailing-listx_refsource_MLIST
• www.securityfocus.com98814http://www.securityfocus.com/bid/98814vdb-entryx_refsource_BID
• access.redhat.comRHSA-2017:3355https://access.redhat.com/errata/RHSA-2017:3355vendor-advisoryx_refsource_REDHAT
• access.redhat.comRHSA-2017:3354https://access.redhat.com/errata/RHSA-2017:3354vendor-advisoryx_refsource_REDHAT
• access.redhat.comRHSA-2017:2477https://access.redhat.com/errata/RHSA-2017:2477vendor-advisoryx_refsource_REDHAT
• www.debian.orgDSA-3871http://www.debian.org/security/2017/dsa-3871vendor-advisoryx_refsource_DEBIAN
• lists.apache.org[activemq-issues] 20190820 [jira] [Created] (AMQ-7279) Security Vulnerabilities in Libraries - jackson-databind-2.9.8.jar, tomcat-servlet-api-8.0.53.jar, tomcat-websocket-api-8.0.53.jar, zookeeper-3.4.6.jar, guava-18.0.jar, jetty-all-9.2.26.v20180806.jar, scala-library-2.11.0.jarhttps://lists.apache.org/thread.html/053d9ce4d579b02203db18545fee5e33f35f2932885459b74d1e4272%40%3Cissues.activemq.apache.org%3Emailing-listx_refsource_MLIST
• lists.apache.org[nifi-commits] 20191113 svn commit: r1869773 - /nifi/site/trunk/security.htmlhttps://lists.apache.org/thread.html/bcce5a9c532b386c68dab2f6b3ce8b0cc9b950ec551766e76391caa3%40%3Ccommits.nifi.apache.org%3Emailing-listx_refsource_MLIST
• lists.apache.org[nifi-commits] 20200123 svn commit: r1873083 - /nifi/site/trunk/security.htmlhttps://lists.apache.org/thread.html/rca37935d661f4689cb4119f1b3b224413b22be161b678e6e6ce0c69b%40%3Ccommits.nifi.apache.org%3Emailing-listx_refsource_MLIST
• www.oracle.comhttps://www.oracle.com/security-alerts/cpujul2020.htmlx_refsource_MISC
• issues.apache.orghttps://issues.apache.org/jira/browse/ZOOKEEPER-2693x_refsource_CONFIRM
• www.oracle.comhttps://www.oracle.com//security-alerts/cpujul2021.htmlx_refsource_MISC