THREATPORT/VULNERABILITY/CVE-2017-7186
HIGH SEVERITY

CVE-2017-7186

Pcre vulnerability

CVSS
7.5
EPSS
5.0%
EPSS pct
91th
Exploited
No known
libpcre1 in PCRE 8.40 and libpcre2 in PCRE2 10.23 allow remote attackers to cause a denial of service (segmentation violation for read access, and application crash) by triggering an invalid Unicode property lookup.
Affected vendor
Pcre
Affected product
Pcre
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness type (CWE)
  • CWE-119 — Improper Restriction of Operations within Memory Bounds
Published
2017-03-20

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 availability.

Its EPSS score of 5.0% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 91% of all scored CVEs.

Check your external exposure to CVE-2017-7186

  • Confirm whether Pcre Pcre is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2017-7186.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2017-7186

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2017-7186 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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