CVE-2023-50981

7.5 highEPSS 0.8%

High (7.5) in cryptopp crypto\+\+. EPSS 0.8% chance of exploitation in the next 30 days.

ModularSquareRoot in Crypto++ (aka cryptopp) through 8.9.0 allows attackers to cause a denial of service (infinite loop) via crafted DER public-key data associated with squared odd numbers, such as the square of 268995137513890432434389773128616504853.

Severity

CVSS 3.1

7.5 high

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

EPSS: 0.8% chance of exploitation in the next 30 days; higher than 55% of CVEs (scores of 2026-10-31)
CWE: CWE-835
Published: 2023-12-18
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

cryptopp:crypto\+\+

References

https://github.com/weidai11/cryptopp/issues/1249
https://github.com/weidai11/cryptopp/issues/1249

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