THREATPORT/VULNERABILITY/CVE-2018-7186
CRITICAL SEVERITY

CVE-2018-7186

Leptonica vulnerability

CVSS
9.8
EPSS
3.5%
EPSS pct
88th
Exploited
No known
Leptonica before 1.75.3 does not limit the number of characters in a %s format argument to fscanf or sscanf, which allows remote attackers to cause a denial of service (stack-based buffer overflow) or possibly have unspecified other impact via a long string, as demonstrated by the gplotRead and ptaReadStream functions.
Affected vendor
Leptonica
Affected product
Leptonica
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness type (CWE)
Published
2018-02-16

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 3.5% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 88% of all scored CVEs.

Check your external exposure to CVE-2018-7186

  • Confirm whether Leptonica Leptonica is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2018-7186.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2018-7186

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2018-7186 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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