THREATPORT/VULNERABILITY/CVE-2017-2800
CRITICAL SEVERITY

CVE-2017-2800

Wolfssl vulnerability

CVSS
9.8
EPSS
8.5%
EPSS pct
94th
Exploited
No known
A specially crafted x509 certificate can cause a single out of bounds byte overwrite in wolfSSL through 3.10.2 resulting in potential certificate validation vulnerabilities, denial of service and possible remote code execution. In order to trigger this vulnerability, the attacker needs to supply a malicious x509 certificate to either a server or a client application using this library.
Affected vendor
Wolfssl
Affected product
Wolfssl
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness type (CWE)
  • CWE-295 — Improper Certificate Validation
Published
2017-05-24

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, high impact to integrity, high impact to availability.

Its EPSS score of 8.5% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 94% of all scored CVEs.

Check your external exposure to CVE-2017-2800

  • Confirm whether Wolfssl Wolfssl is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2017-2800.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2017-2800

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2017-2800 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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