What is CVE-2016-9317?

CVE-2016-9317 is a medium-severity vulnerability in Libgd, classified under Improper Input Validation. CVSS score: 5.5/10. Published 2017-01-26.

How severe is CVE-2016-9317?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Improper input validation in Libgd

CVE-2016-9317

The gdImageCreate function in the GD Graphics Library (aka libgd) before 2.2.4 allows remote attackers to cause a denial of service (system hang) via an oversized image.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

Published 2017-01-26 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.036 (89.0th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 89th percentile — 89.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.036 · newest: 0.036 · change: 0.000

Affected products

Libgd

Weakness classification (CWE)

CWE-20 — Improper Input Validation

References

github.com/libgd/libgd/blob/gd-2.2.4/CHANGELOG.md (Patch, Third Party Advisory, Release Notes, Issue Tracking)
github.com/libgd/libgd/commit/1846f48e5fcdde996e7c27a4bbac5d0aef183e4b (Patch, Third Party Advisory, Issue Tracking)
www.debian.org/security/2017/dsa-3777 (vendor-advisory)
www.securityfocus.com/bid/95841 (vdb-entry)

Frequently asked questions

What is CVE-2016-9317?: CVE-2016-9317 is a medium-severity vulnerability in Libgd, classified under Improper Input Validation. CVSS score: 5.5/10. Published 2017-01-26.
How severe is CVE-2016-9317?: Medium severity. CVSS v3 base score is 5.5 out of 10.