The IBM Cloud APM 8.1.4 server will issue a DNS request to resolve any hostname specified in the Cloud Event Management Webhook URL configu…

published 2021-03-02 5y ago modified 2026-06-17 4mo ago also EUVD-2020-25966

cvss: 4.9; version 3.0, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.9%; EPSS 0.9% chance of exploitation in 30 days, percentile 60%
public exploits: 0; none known

The IBM Cloud APM 8.1.4 server will issue a DNS request to resolve any hostname specified in the Cloud Event Management Webhook URL configuration definition. This could enable an authenticated user with admin authorization to create DNS query strings that are not hostnames. IBM X-Force ID: 187861.

Patch / fix

links 1

ibm.com/support/pages/node/6417137 advisory

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Exploit prediction

0.92% chance of exploitation in the next 30 days, higher than 60% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by	version	score	vector
CNA	3.0	4.9	CVSS:3.0/UI:N/PR:H/I:H/AV:N/A:N/S:U/C:N/AC:L/RL:O/RC:C/E:U
NVD	3.1	4.9	CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N
CNA	3.0	4.9	CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N
NVD	2.0	4.0	AV:N/AC:L/Au:S/C:N/I:P/A:N

Affected products

IBM Cloud APM

Classification

Weakness

CWE-706 Use of Incorrectly-Resolved Name or Reference

References

ibm.com /support/pages/node/6417137
patch, vendor-advisory
exchange.xforce.ibmcloud.com /vulnerabilities/187861
vdb-entry, vendor-advisory

Sources

CVE List CVE-2020-4719
NVD CVE-2020-4719

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