CVE-2019-5086

Xcftools vulnerability

CVSS

8.8

EPSS

3.2%

EPSS pct

87th

Exploited

No known

An exploitable integer overflow vulnerability exists in the flattenIncrementally function in the xcf2png and xcf2pnm binaries of xcftools, version 1.0.7. An integer overflow can occur while walking through tiles that could be exploited to corrupt memory and execute arbitrary code. In order to trigger this vulnerability, a victim would need to open a specially crafted XCF file.

Affected vendor

Xcftools Project

Affected product

Xcftools

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Weakness type (CWE)

CWE-680
CWE-190 — Integer Overflow or Wraparound
CWE-787 — Out-of-bounds Write

Published

2019-11-21

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 confidentiality, high impact to integrity, high impact to availability.

Its EPSS score of 3.2% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 87% of all scored CVEs.

Check your external exposure to CVE-2019-5086

Confirm whether Xcftools Project Xcftools is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2019-5086.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2019-5086

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2019-5086 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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