CVE-2026-104066

Scribus before 1.6.7 and 1.7.x before 1.7.4 Heap Buffer Overflow via PICT 4-bit Pixel Unpacking

CVSS 4.0 8.5 HIGHCVSS 3.1 7.8 HIGHCheck source for fixed versionsKEV status unknown

Original advisory

cve-program · CVE-2026-104066

Published

Scribus before 1.6.7 and 1.7.x before 1.7.4 contains a heap buffer overflow vulnerability in the Mac PICT image loader and import plugin when unpacking 4-bit indexed pixel data. Attackers can supply a crafted PICT file with inconsistent width and row data that, when placed or imported, writes out of bounds, causing crashes or code execution.

Read the publisher's advisory

Affected versions, risk and source history

Exploitation and risk

Source status

CISA KEV lists vulnerabilities known to be exploited. FIRST EPSS estimates the likelihood of exploitation in the next 30 days. An unavailable score does not mean zero risk.

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Risk history

Compare earlier KEV listings and EPSS scores. Advisory wording and affected versions have a separate history.

When does an EPSS score appear as a change?

A prediction change is reported when EPSS rises from below 10% to 10% or higher. Every daily score change from the last 30 days stays in this history. Before that, it keeps KEV changes and moves between EPSS bands (0.1%, 1%, 5%, 10%, 20%, 50% and 90%).

Advisory history

3 saved versions

See how the publisher's advisory changed over time. Each link opens the version saved at that time. The publisher's update date can differ from the date shown here.

How advisory history works

Each link identifies one complete publisher record. History can include advisories that previously shared an identifier; an identifier removed by a publisher no longer establishes a current relationship. A historical link shows only that record and earlier saved versions. Failed checks and unchanged reads do not create new versions.

2 Nov 2026 21:57:16 UTC

Scribus before 1.6.7 and 1.7.x before 1.7.4 Heap Buffer Overflow via PICT 4-bit Pixel Unpacking

cve-program · CVE-2026-104066 · Published

30 Oct 2026 19:45:26 UTC

Scribus before 1.6.7 Heap Buffer Overflow via PICT 4-bit Pixel Unpacking

cve-program · CVE-2026-104066 · Published

30 Oct 2026 16:45:26 UTC

Scribus before 1.6.7 Heap Buffer Overflow via PICT 4-bit Pixel Unpacking

cve-program · CVE-2026-104066 · Published