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CVE-2023-52323

18
FAUCET Score

CVE-2023-52323 describes a side-channel leakage vulnerability in PyCryptodome and pycryptodomex versions prior to 3.19.1, specifically affecting OAEP decryption. This flaw could be exploited via a Manger attack, potentially allowing an attacker to recover sensitive information. Rated Medium severity (CVSS 5.9), it requires high attack complexity but does not necessitate user interaction or privileges, with a high impact on confidentiality. Currently, there is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
< 3.19.1CPE matchmatch criteria
cpe:2.3:a:pycryptodome:pycryptodome:*:*:*:*:*:python:*:*
< 3.19.1CPE matchmatch criteria
cpe:2.3:a:pycryptodome:pycryptodomex:*:*:*:*:*:python:*:*

CVSS Data

CVSS version used by this source: 3.1

5.9MEDIUM

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
2.2
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.62%
Probability of exploitation in next 30 days
EPSS Percentile
46.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0062 is in the 8th percentile among its peer group of 19,958 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (9)

pippatch availablevia ghsa
Product: pycryptodomexFixed in: 3.19.1
pippatch availablevia ghsa
Product: pycryptodomeFixed in: 3.19.1
redhatpatch availablevia redhat_api
Product: Red Hat Ansible Automation Platform 2.4 for RHEL 8Fixed in: python3x-pycryptodomex-0:3.20.0-1.el8ap
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Ansible Automation Platform 2.4 for RHEL 9Fixed in: python-pycryptodomex-0:3.20.0-1.el9ap
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: fence-agents-0:4.2.1-129.el8
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: resource-agents-0:4.9.0-54.el8
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: fence-agents-0:4.10.0-62.el9
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 9.0 Extended Update SupportFixed in: fence-agents-0:4.10.0-20.el9_0.11
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Satellite 6.15 for RHEL 8Fixed in: python-pycryptodomex-0:3.20.0-1.el8pc
View patch

Vendor Advisories (2)

pipGHSA-j225-cvw7-qrx7high

PyCryptodome and pycryptodomex side-channel leakage for OAEP decryption

Jan 5, 2024
redhatCVE-2023-52323Moderate

pycryptodome: side-channel leakage for OAEP decryption in PyCryptodome and pycryptodomex

Jan 5, 2024

References

github.com / Legrandin/pycryptodome/blob/master/Changelog.rst
Release Notes
pypi.org / project/pycryptodomex
Release Notes