CVE-2023-50979

Name: CVE-2023-50979
Creator: NVD / NIST
Published: 2023-12-18T04:15:50.97+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.9/10EPSS 0.59%

Last modified Jun 17, 2026

CVE-2023-50979 is a medium-severity vulnerability rated 5.9/10 on the CVSS scale. Crypto++ (aka cryptopp) through 8.9.0 has a Marvin side channel during decryption with PKCS#1 v1.5 padding.. EPSS estimates a 0.59% chance of exploitation in the next 30 days.

Description

Crypto++ (aka cryptopp) through 8.9.0 has a Marvin side channel during decryption with PKCS#1 v1.5 padding.

Metrics

CVSS 3.1

5.9/10

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

EPSS Probability

0.59%

43.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-203

Affected Software

Vendor	Product	Versions
Cryptopp	Crypto\+\+	<= 8.9.0

References

Timeline

Published: Dec 18, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-50979?

Crypto++ (aka cryptopp) through 8.9.0 has a Marvin side channel during decryption with PKCS#1 v1.5 padding.

How severe is CVE-2023-50979?

CVE-2023-50979 has a CVSS score of 5.9/10 (MEDIUM severity). The EPSS model estimates a 0.59% probability of exploitation in the next 30 days.

How do I fix CVE-2023-50979?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-50979?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST