CVE-2026-25970

Description

ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to versions 7.1.2-15 and 6.9.13-40, a signed integer overflow vulnerability in ImageMagick's SIXEL decoder allows an attacker to trigger memory corruption and denial of service when processing a maliciously crafted SIXEL image file. The vulnerability occurs during buffer reallocation operations where pointer arithmetic using signed 32-bit integers overflows. Versions 7.1.2-15 and 6.9.13-40 contain a patch.

How to fix CVE-2026-25970

To remediate CVE-2026-25970, upgrade the affected package to a fixed version below.

—upgrade to 8:6.9.11.60+dfsg-1.3+deb11u10 or later
—upgrade to 14.10.3 or later
—upgrade to 14.10.3 or later
—upgrade to 14.10.3 or later
—upgrade to 14.10.3 or later
—upgrade to 14.10.3 or later
—upgrade to 14.10.3 or later
—upgrade to 14.10.3 or later
—upgrade to 14.10.3 or later
—upgrade to 14.10.3 or later
—upgrade to 14.10.3 or later
—upgrade to 14.10.3 or later
—upgrade to 14.10.3 or later
—upgrade to 14.10.3 or later
—

Is CVE-2026-25970 being exploited?

Low — EPSS is 0.1%, meaning exploitation activity has not been observed at scale.

Affected packages (20)

from 0, < 8:6.9.11.60+dfsg-1.3+deb11u10
from 0, < 14.10.3
from 0, < 14.10.3
from 0, < 14.10.3
from 0, < 14.10.3
from 0, < 14.10.3
from 0, < 14.10.3
from 0, < 14.10.3
from 0, < 14.10.3
from 0, < 14.10.3

CVSS scores

Source	Version	Severity	Vector
osv	CVSS 3.1	MEDIUM5.3	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L