CVE-2025-43965

unknown

Published — · Modified —

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CVSS v3

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CVSS v4 NEW

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not yet in upstream

VIR risk

—

Description

In MIFF image processing in ImageMagick before 7.1.1-44, image depth is mishandled after SetQuantumFormat is used.

Predictions

Exploit likelihood

20%

Patch ETA

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Heuristic predictions, AS-IS, for prioritization only.

Mitigations

community-verified Authored 2026-05-29

{

Edit /etc/ImageMagick-7/policy.xml (or your distribution's equivalent) and add a deny rule for the MIFF coder:

<policymap>
  <policy domain="coder" rights="none" pattern="MIFF" />
  <policy domain="coder" rights="none" pattern="MIFF2" />
  <policy domain="coder" rights="none" pattern="MIFF3" />
</policymap>

Restart any services using ImageMagick (e.g. systemctl restart php-fpm nginx).

Validation:

convert test.miff out.png 2>&1 | grep -i 'not authorized'

This blocks all MIFF processing. If you legitimately use MIFF internally, upgrade immediately instead. Rollback: remove the policy lines and restart services.

}

OS impact

SUSE Affected 1 release

Version	Status	Fixed in
—	Affected	—

Debian Fixed 5 releases

Version	Status	Fixed in
trixie	Fixed	`8:7.1.1.43+dfsg1-1+deb13u1`
sid	Fixed	`8:7.1.1.46+dfsg1-1`
forky	Fixed	`8:7.1.1.46+dfsg1-1`
bullseye	Fixed	`8:6.9.11.60+dfsg-1.3+deb11u5`
bookworm	Fixed	`8:6.9.11.60+dfsg-1.6+deb12u3`

References

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.