CVE-2022-48570
Crypto++ through 8.4 contains a timing side channel in ECDSA signature generation.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.03%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
Crypto++ through 8.4 contains a timing side channel in ECDSA signature generation. Function FixedSizeAllocatorWithCleanup could write to memory outside of the allocation if the allocated memory was not 16-byte aligned. NOTE: this issue exists because the CVE-2019-14318 fix was intentionally removed for functionality reasons.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 1.03% probability · 63th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-787
- Affected
- cryptopp/crypto\+\+
- Source
- cve@mitre.org
EPSS 1.0% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://github.com/weidai11/cryptopp/issues/992Exploit, Issue Tracking, Patch, Vendor Advisory
- https://github.com/weidai11/cryptopp/releases/tag/CRYPTOPP_8_4_0Release Notes
- https://github.com/weidai11/cryptopp/issues/992Exploit, Issue Tracking, Patch, Vendor Advisory
- https://github.com/weidai11/cryptopp/releases/tag/CRYPTOPP_8_4_0Release Notes
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.