What is CVE-2018-7470?

CVE-2018-7470 is a medium-severity vulnerability in Imagemagick, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 6.5/10. Published 2018-02-25.

How severe is CVE-2018-7470?

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

Buffer overflow in Imagemagick

CVE-2018-7470

An issue was discovered in ImageMagick 7.0.7-22 Q16. The IsWEBPImageLossless function in coders/webp.c allows attackers to cause a denial of service (segmentation violation) via a crafted file.

Vulnerability class: Buffer Overflow

Published 2018-02-25 · 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: 0.018 (78.0th percentile), scored 2026-09-28.

Low probability of exploitation in the next 30 days, but still tracked. 78th percentile — 78.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.018 · newest: 0.018 · change: 0.000

Affected products

Imagemagick — versions 7.0.7-22

Weakness classification (CWE)

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

References

github.com/ImageMagick/ImageMagick/issues/998 (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2018-7470?: CVE-2018-7470 is a medium-severity vulnerability in Imagemagick, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 6.5/10. Published 2018-02-25.
How severe is CVE-2018-7470?: Medium severity. CVSS v3 base score is 6.5 out of 10.