TI-2019-10669 Aliases CVE-2019-14318 GHSA-j77v-9g36-cfp2

Crypto++ 8.3.0 and earlier contains a timing side channel in ECDSA signature generation.

LOW 32CWE-417Published 2019-07-30 · Updated 2024-08-05

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: High
Impact type: —
Confidentiality · integrity · availability: High · None · None
Fix status: No fix listed

Attack profile from CVSS 3.0 · NVD. Fix status from CNA.

Summary

Crypto++ 8.3.0 and earlier contains a timing side channel in ECDSA signature generation. This allows a local or remote attacker, able to measure the duration of hundreds to thousands of signing operations, to compute the private key used. The issue occurs because scalar multiplication in ecp.cpp (prime field curves, small leakage) and algebra.cpp (binary field curves, large leakage) is not constant time and leaks the bit length of the scalar among other information.

Why it matters now

EPSS 0.03104 87th percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by NVD

Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
—	—	all versions	—	No fix listed	CNA

— Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:cryptopp:crypto\+\+::::::::	up to 8.3.0	Vulnerable	Cryptopp

cpe:2.3:a:cryptopp:crypto\+\+:*:*:*:*:*:*:*:* Versions up to 8.3.0 Vulnerable ·Cryptopp

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2019-14318
2026-10-03 Alias added: GHSA-j77v-9g36-cfp2

References

Exploit 1

https://eprint.iacr.org/2011/232.pdf

Patch 1

https://github.com/weidai11/cryptopp/issues/869

Advisory 2

Other 2

TI-2022-24110 Crypto++ through 8.4 contains a timing side channel in ECDSA signature generation. CVSS 3.1HIGH 7.5
TI-2023-27866 ModularSquareRoot in Crypto++ (aka cryptopp) through 8.9.0 allows attackers to cause a… CVSS 3.1HIGH 7.5
TI-2016-08052 Crypto++ (aka cryptopp and libcrypto++) 5.6.4 contained a bug in its ASN.1 BER decoding… CVSS 3.0HIGH 7.5
TI-2016-06416 Crypto++ 5.6.4 incorrectly uses Microsoft's stack-based _malloca and _freea functions. CVSS 3.0HIGH 7.5
TI-2016-03396 The timing attack protection in Rijndael::Enc::ProcessAndXorBlock and… CVSS 3.0HIGH 7.5
TI-2023-27865 gf2n.cpp in Crypto++ (aka cryptopp) through 8.9.0 allows attackers to cause a denial of… CVSS 3.1HIGH 7.5

See all 11 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences