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Fencer Vulns
medium 4.9

CVE-2020-4719 json

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 5 y ago modified 2026-06-17 4 mo 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

Summary

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

Exploit prediction

0.92% chance of exploitation in the next 30 days, higher than 60% of all scored CVEs (FIRST EPSS, 2026-11-08).

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

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.