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Fencer Vulns
critical 9.8

CVE-2018-7247 json

An issue was discovered in pixHtmlViewer in prog/htmlviewer.c in Leptonica before 1.75.3.

published 2018-02-19 8 y ago modified 2026-06-17 4 mo ago also EUVD-2018-18986

cvss
9.8
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
2.5%
EPSS 2.5% chance of exploitation in 30 days, percentile 84%
public exploits
0
none known

Summary

An issue was discovered in pixHtmlViewer in prog/htmlviewer.c in Leptonica before 1.75.3. Unsanitized input (rootname) can overflow a buffer, leading potentially to arbitrary code execution or possibly unspecified other impact.

Patch / fix

  • leptonica leptonica 1.75.3
  • leptonlib Debian 14, Debian 13, Debian 12 1.76.0-1

debian advisories DEBIAN-CVE-2018-7247

  • leptonlib Ubuntu Pro 18.04 LTS 1.75.3-3ubuntu0.1~esm1

ubuntu advisories UBUNTU-CVE-2018-7247

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • leptonica openSUSE Tumbleweed 1.80.0-1.9

opensuse advisories openSUSE-SU-2024:10914-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2018-7247 updated cvss 3.3

leptonica: Unsanitized input in pixHtmlViewer in prog/htmlviewer.c

  • Red Hat All currently supported Red Hat products
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

2.47% chance of exploitation in the next 30 days, higher than 84% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.0 9.8 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 7.5 AV:N/AC:L/Au:N/C:P/I:P/A:P

Classification

Weakness
  • CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.