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Fencer Vulns
high 8.8

CVE-2020-7012 in the critical feed json

Kibana versions 6.7.0 to 6.8.8 and 7.0.0 to 7.6.2 contain a prototype pollution flaw in the Upgrade Assistant.

published 2020-06-03 6 y ago modified 2026-06-17 4 mo ago also EUVD-2020-28150

cvss
8.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
18.2%
EPSS 18.2% chance of exploitation in 30 days, percentile 97%
public exploits
1
Metasploit

Summary

Kibana versions 6.7.0 to 6.8.8 and 7.0.0 to 7.6.2 contain a prototype pollution flaw in the Upgrade Assistant. An authenticated attacker with privileges to write to the Kibana index could insert data that would cause Kibana to execute arbitrary code. This could possibly lead to an attacker executing code with the permissions of the Kibana process on the host system.

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2020-7012 updated cvss 8.8

kibana: Prototype pollution in the Upgrade Assistant could result in arbitrary code execution (ESA-2020-05)

  • Red Hat OpenShift Container Platform 3.11 kibana Red Hat OpenShift Container Platform 4 kibana
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Timeline

  1. First public exploit (Metasploit exploit/linux/http/kibana_upgrade_assistant_telemetry_rce)
  2. Published

Exploit prediction

18.21% chance of exploitation in the next 30 days, higher than 97% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

CVSS scores

assigned by version score vector
NVD 3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 6.5 AV:N/AC:L/Au:S/C:P/I:P/A:P

Affected products

  • Elastic Kibana

Classification

Weakness
  • CWE-94 Improper Control of Generation of Code

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.