How severe is CVE-2019-14318?

CVE-2019-14318 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-2019-14318 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (87th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-14318?

CVE-2019-14318 affects Cryptopp Crypto++. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-14318?

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

When was CVE-2019-14318 published?

CVE-2019-14318 was published on 2019-07-30 and last updated on 2026-06-17.

CVE-2019-14318

CVE-2019-14318 is a medium-severity vulnerability in Cryptopp Crypto++ 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-417.

Key facts

Severity: Medium (CVSS 3.x base score 5.9)
CVSS v2: 4.3
EPSS exploit prediction: 3% (87th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-417
Affected product: Cryptopp Crypto++
Published: 2019-07-30
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is CVE-2019-14318?: 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.
How severe is CVE-2019-14318?: CVE-2019-14318 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-2019-14318 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (87th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-14318?: CVE-2019-14318 affects Cryptopp Crypto++. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-14318?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2019-14318 published?: CVE-2019-14318 was published on 2019-07-30 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:cryptopp:crypto\+\+:*:*:*:*:*:*:*:*

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