THREATPORT/VULNERABILITY/CVE-2018-13785
MEDIUM SEVERITY

CVE-2018-13785

Libpng vulnerability

CVSS
6.5
EPSS
4.5%
EPSS pct
90th
Exploited
No known
In libpng 1.6.34, a wrong calculation of row_factor in the png_check_chunk_length function (pngrutil.c) may trigger an integer overflow and resultant divide-by-zero while processing a crafted PNG file, leading to a denial of service.
Affected vendor
Libpng
Affected product
Libpng
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Weakness type (CWE)
Published
2018-07-09

Risk analysis

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

Its EPSS score of 4.5% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 90% of all scored CVEs.

Check your external exposure to CVE-2018-13785

  • Confirm whether Libpng Libpng is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2018-13785.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2018-13785

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2018-13785 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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