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VulnerabilityPublished Updated

CVE-2026-56373: ImageMagick before 7.1.2-15 contains a use-after-free vulnerability in the PDB decoder that uses a

Affects imagemagickSource GCVE Database

0

Not known to be exploited · CVSS 5.3 Medium · fixed in 8:6.7.7.10-6ubuntu3.13+esm25 : update imagemagick when convenient.

Data as of 26 Oct 2026, 17:16 UTC

CVSS 3.1 base score
5.3Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.2% chance of exploitation in 30 days – higher than 13% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 8:6.7.7.10-6ubuntu3.13+esm25, 8:6.8.9.9-7ubuntu5.16+esm24, 8:6.9.7.4+dfsg-16ubuntu6.15+esm16 +3
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 10 Jul 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

ProductAffectedFixed in
Ubuntu Pro 24.04 LTSimagemagickpkg:deb/ubuntu/imagemagick?arch=source&distro=esm-apps/nobleOther threatsAffected
  • <8:6.9.12.98+dfsg1-5.2ubuntu0.1~esm13
Fixed in
  • 8:6.9.12.98+dfsg1-5.2ubuntu0.1~esm13
Ubuntu Pro 22.04 LTSimagemagickpkg:deb/ubuntu/imagemagick?arch=source&distro=esm-apps/jammyOther threatsAffected
  • <8:6.9.11.60+dfsg-1.3ubuntu0.22.04.5+esm14
  • =8:6.9.11.60+dfsg-1ubuntu1
Fixed in
  • 8:6.9.11.60+dfsg-1.3ubuntu0.22.04.5+esm14
Ubuntu Pro 20.04 LTSimagemagickpkg:deb/ubuntu/imagemagick?arch=source&distro=esm-apps/focalOther threatsAffected
  • <8:6.9.10.23+dfsg-2.1ubuntu11.11+esm14
Fixed in
  • 8:6.9.10.23+dfsg-2.1ubuntu11.11+esm14
Ubuntu Pro 18.04 LTSimagemagickpkg:deb/ubuntu/imagemagick?arch=source&distro=esm-infra/bionicOther threatsAffected
  • <8:6.9.7.4+dfsg-16ubuntu6.15+esm16
Fixed in
  • 8:6.9.7.4+dfsg-16ubuntu6.15+esm16
Ubuntu Pro 16.04 LTSimagemagickpkg:deb/ubuntu/imagemagick?arch=source&distro=esm-infra-legacy/xenialOther threatsAffected
  • <8:6.8.9.9-7ubuntu5.16+esm24
Fixed in
  • 8:6.8.9.9-7ubuntu5.16+esm24
Ubuntu Pro 14.04 LTSimagemagickpkg:deb/ubuntu/imagemagick?arch=source&distro=esm-infra-legacy/trustyOther threatsAffected
  • <8:6.7.7.10-6ubuntu3.13+esm25
Fixed in
  • 8:6.7.7.10-6ubuntu3.13+esm25

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

Description

ImageMagick before 7.1.2-15 contains a use-after-free vulnerability in the PDB decoder that uses a stale pointer when memory allocation fails. Attackers can trigger this vulnerability by processing malicious PDB files to cause crashes or write a single zero byte to freed memory.

References

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