How severe is CVE-2023-52323?

CVE-2023-52323 has a CVSS 3.x base score of 5.9, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2023-52323 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (45th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-52323?

CVE-2023-52323 primarily affects Pycryptodome. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2023-52323?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2023-52323 have an EU (EUVD) identifier?

Yes. CVE-2023-52323 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-0153.

When was CVE-2023-52323 published?

CVE-2023-52323 was published on 2024-01-05 and last updated on 2026-06-17.

CVE-2023-52323

CVE-2023-52323 is a medium-severity vulnerability in Pycryptodome with a CVSS 3.x base score of 5.9. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-203.

Key facts

Severity: Medium (CVSS 3.x base score 5.9)
EPSS exploit prediction: 1% (45th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-0153
Weakness: CWE-203
Affected product: Pycryptodome
Published: 2024-01-05
Last modified: 2026-06-17

Description

PyCryptodome and pycryptodomex before 3.19.1 allow side-channel leakage for OAEP decryption, exploitable for a Manger attack.

Frequently asked questions

What is CVE-2023-52323?: PyCryptodome and pycryptodomex before 3.19.1 allow side-channel leakage for OAEP decryption, exploitable for a Manger attack.
How severe is CVE-2023-52323?: CVE-2023-52323 has a CVSS 3.x base score of 5.9, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2023-52323 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (45th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-52323?: CVE-2023-52323 primarily affects Pycryptodome. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2023-52323?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2023-52323 have an EU (EUVD) identifier?: Yes. CVE-2023-52323 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-0153.
When was CVE-2023-52323 published?: CVE-2023-52323 was published on 2024-01-05 and last updated on 2026-06-17.

References

Affected products (2)

cpe:2.3:a:pycryptodome:pycryptodome:*:*:*:*:*:python:*:*
cpe:2.3:a:pycryptodome:pycryptodomex:*:*:*:*:*:python:*:*

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