What is CVE-2018-9135?

CVE-2018-9135 is a high-severity vulnerability in Imagemagick, classified under Out-of-bounds Read. CVSS score: 8.8/10. Published 2018-03-30.

How severe is CVE-2018-9135?

High severity. CVSS v3 base score is 8.8 out of 10.

Out-of-bounds Read in Imagemagick

CVE-2018-9135

In ImageMagick 7.0.7-24 Q16, there is a heap-based buffer over-read in IsWEBPImageLossless in coders/webp.c.

Vulnerability class: Buffer Overflow

Published 2018-03-30 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.021 (80.7th percentile), scored 2026-09-28.

Low probability of exploitation in the next 30 days, but still tracked. 81st percentile — 80.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.021 · newest: 0.021 · change: -0.000

Affected products

Imagemagick — versions 7.0.7-24

Weakness classification (CWE)

CWE-125 — Out-of-bounds Read

References

github.com/ImageMagick/ImageMagick/issues/1009 (Exploit, Third Party Advisory, Issue Tracking)

Frequently asked questions

What is CVE-2018-9135?: CVE-2018-9135 is a high-severity vulnerability in Imagemagick, classified under Out-of-bounds Read. CVSS score: 8.8/10. Published 2018-03-30.
How severe is CVE-2018-9135?: High severity. CVSS v3 base score is 8.8 out of 10.