What is CVE-2017-11505?

CVE-2017-11505 is a medium-severity vulnerability in Imagemagick, classified under Excessive Iteration. CVSS score: 6.5/10. Published 2017-07-21.

How severe is CVE-2017-11505?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Vulnerability in Imagemagick

CVE-2017-11505

The ReadOneJNGImage function in coders/png.c in ImageMagick through 6.9.9-0 and 7.x through 7.0.6-1 allows remote attackers to cause a denial of service (large loop and CPU consumption) via a malformed JNG file.

Published 2017-07-21 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.023 (82.3th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 82nd percentile — 82.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.023 · newest: 0.023 · change: 0.000

Affected products

Imagemagick — versions 7.0.0-0, 7.0.1-0, 7.0.1-1

Weakness classification (CWE)

CWE-834 — Excessive Iteration

References

bugs.debian.org/cgi-bin/bugreport.cgi (Third Party Advisory)
github.com/ImageMagick/ImageMagick/issues/526 (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2017-11505?: CVE-2017-11505 is a medium-severity vulnerability in Imagemagick, classified under Excessive Iteration. CVSS score: 6.5/10. Published 2017-07-21.
How severe is CVE-2017-11505?: Medium severity. CVSS v3 base score is 6.5 out of 10.