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CVE-2021-3737: python from 3.6.0 (inclusive), before 3.6.14 (exclusive), from 3.7.0 (inclusive), before 3.7.11 (exclusive), from…
CVE-2021-3737. CVSS 3.1 base score 7.5 (HIGH, NVD). EPSS 0.11586 (percentile 0.95961), scored 13-Oct-2026.
Affected technology
python · from 3.6.0 (inclusive), before 3.6.14 (exclusive)
python
python · from 3.7.0 (inclusive), before 3.7.11 (exclusive)
python
python · from 3.8.0 (inclusive), before 3.8.11 (exclusive)
python
python · from 3.9.0 (inclusive), before 3.9.6 (exclusive)
python
codeready linux builder · 8.0
redhat
codeready linux builder for ibm z systems · 8.0
redhat
codeready linux builder for power little endian · 8.0
redhat
enterprise linux · 6.0
redhat
enterprise linux · 7.0
redhat
enterprise linux · 8.0
redhat
enterprise linux for ibm z systems · 8.0
redhat
enterprise linux for power little endian · 8.0
redhat
fedora · 33
fedoraproject
fedora · 34
fedoraproject
ubuntu linux · 14.04
canonical
ubuntu linux · 16.04
canonical
ubuntu linux · 18.04
canonical
ubuntu linux · 20.04
canonical
ubuntu linux · 21.04
canonical
hci · Version not applicable in the source CPE
netapp
management services for element software · Version not applicable in the source CPE
netapp
netapp xcp smb · Version not applicable in the source CPE
netapp
ontap select deploy administration utility · Version not applicable in the source CPE
netapp
xcp nfs · Version not applicable in the source CPE
netapp
communications cloud native core binding support function · 22.1.3
oracle
communications cloud native core network exposure function · 22.1.1
oracle
communications cloud native core policy · 22.2.0
oracle
python · Fixed in python v3.6.14, python v3.7.11, python v3.8.11, python v3.9.6, python v3.10.0b2
Vendor not specified by the source
SIMATIC S7-1500 CPU 1518-4 PN/DP MFP · V3.1.0 to before V3.1.5
Siemens
SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP · V3.1.0 to before V3.1.5
Siemens
SIPLUS S7-1500 CPU 1518-4 PN/DP MFP · V3.1.0 to before V3.1.5
Siemens
Component: Not specified by the source
Attack conditions (NVD, CVSS 3.1): Network (remote) · No privileges required · No user interaction required
Attack conditions (Source advisory, 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 7.5/10) rates confidentiality and integrity impact as none; availability impact as high. Source advisory’s CVSS 3.1 assessment (base score 7.5/10) rates confidentiality and integrity impact as none; availability impact as high. The description does not specify what an attacker can achieve beyond these rated impacts.
- CWE
- CWE-400, CWE-835
- CCR priority
- 32.9 /100 (P4)
- CVSS 3.1
- 7.5 /10 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H · NVD
- EPSS
- 0.11586 · percentile 0.95961 · 2026-10-13
- KEV
- no
Provenance
- GitHub Advisory Database · Source record · observed 2026-10-14 16:01:16.619248+00:00 UTC
- NVD CVE API 2.0 · Source record · observed 2026-10-14 15:56:36.793806+00:00 UTC
Stable permalink: https://cybercodered.org/item/cve-cve-2021-3737.html