P3Verified

CVE-2021-29921: python from 3.8.0 (inclusive), before 3.8.12 (exclusive), from 3.9.0 (inclusive), before 3.9.5 (exclusive); +6 more…

CVE-2021-29921. CVSS 3.1 base score 9.8 (CRITICAL, NVD). EPSS 0.06882 (percentile 0.93905), scored 2026-10-08.

Affected technology

python · from 3.8.0 (inclusive), before 3.8.12 (exclusive)
python

python · from 3.9.0 (inclusive), before 3.9.5 (exclusive)
python

communications cloud native core automated test suite · 1.8.0
oracle

communications cloud native core binding support function · 1.11.0
oracle

communications cloud native core network slice selection function · 1.8.0
oracle

graalvm · 20.3.2
oracle

graalvm · 21.1.0
oracle

zfs storage appliance kit · 8.8
oracle

n/a · n/a
Vendor not specified by the source

Description’s affected range: before 3

Component: Not specified by the source

Attack conditions (NVD, CVSS 3.1): Network (remote) · No privileges required · No user interaction required

What an attacker can do

NVD’s CVSS 3.1 assessment (base score 9.8/10) rates confidentiality, integrity and availability impact as high. The description does not specify what an attacker can achieve beyond these rated impacts.

Published 2026-10-09 03:15:23.463701+00:00

CCR priority: 40.9 /100 (P3)
CVSS 3.1: 9.8 /10 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H · NVD
EPSS: 0.06882 · percentile 0.93905 · 2026-10-08
KEV: no

Provenance

NVD CVE API 2.0 · Source record · observed 2026-10-09 03:13:32.966430+00:00 UTC

Stable permalink: https://cybercodered.org/item/cve-cve-2021-29921.html