THREATPORT/VULNERABILITY/CVE-2019-14318
MEDIUM SEVERITY

CVE-2019-14318

Crypto\+\+ vulnerability

CVSS
5.9
EPSS
3.2%
EPSS pct
87th
Exploited
No known
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.
Affected vendor
Cryptopp
Affected product
Crypto\+\+
CVSS vector
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Weakness type (CWE)
  • CWE-417 — Communication Channel Errors
Published
2019-07-30

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, high attack complexity, requiring no privileges, no user interaction. Successful exploitation leads to high impact to confidentiality.

Its EPSS score of 3.2% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 87% of all scored CVEs.

Check your external exposure to CVE-2019-14318

  • Confirm whether Cryptopp Crypto\+\+ is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2019-14318.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2019-14318

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2019-14318 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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