THREATPORT/VULNERABILITY/CVE-2015-3193
HIGH SEVERITY

CVE-2015-3193

Openssl vulnerability

CVSS
7.5
EPSS
25.1%
EPSS pct
98th
Exploited
No known
The Montgomery squaring implementation in crypto/bn/asm/x86_64-mont5.pl in OpenSSL 1.0.2 before 1.0.2e on the x86_64 platform, as used by the BN_mod_exp function, mishandles carry propagation and produces incorrect output, which makes it easier for remote attackers to obtain sensitive private-key information via an attack against use of a (1) Diffie-Hellman (DH) or (2) Diffie-Hellman Ephemeral (DHE) ciphersuite.
Affected vendor
Openssl
Affected product
Openssl
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Weakness type (CWE)
  • CWE-200 — Exposure of Sensitive Information
Published
2015-12-06

Risk analysis

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

Its EPSS score of 25.1% reflects a moderate probability of exploitation activity in the wild over the next 30 days, placing it above 98% of all scored CVEs.

Check your external exposure to CVE-2015-3193

  • Confirm whether Openssl Openssl is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2015-3193.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2015-3193

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2015-3193 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

Run a free external exposure scan

Are you exposed to CVE-2015-3193?

Run an instant, non-intrusive external scan to check your attack surface for CVE-2015-3193.

Start free scan

No credit card. Agentless.

Related vulnerabilities

HIGH
CVE-2025-8159
Dir 513 Firmware vulnerability
HIGH
CVE-2014-125118
CVE-2014-125118 vulnerability
HIGH
CVE-2025-8180
Ch22 Firmware vulnerability