ImageMagick 7.0.7-0 Q16 has a NULL Pointer Dereference vulnerability in the function sixel_decode in coders/sixel.c.
CVE-2017-14626
CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM confidence
Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2022-05-13. NVD baseline CVSS 9.8; sources differ by 0.0.
Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
9.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
- High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 3%CVSS: 9.8Exploit: NoneExposed: 0
A fix is available — apply it.
- CVSS v3
- 9.8
- EG Score
- 9.8(medium)
- EPSS
- 83.5%
- KEV
- Not listed
Published
September 21, 2017
Last Modified
May 13, 2026
Advisory Details (5)
Auto-updated May 18, 2026Patch available.
generic Patch Available
[SECURITY] [DLA 1785-1] imagemagick security update
https://lists.debian.org/debian-lts-announce/2019/05/msg00015.htmlgeneric
Null Pointer Dereference in sixel_decode and sixel_output_create · Issue #721 · ImageMagick/ImageMagick · GitHub
https://github.com/ImageMagick/ImageMagick/issues/721generic
Null Pointer Dereference in sixel_decode · Issue #720 · ImageMagick/ImageMagick · GitHub
https://github.com/ImageMagick/ImageMagick/issues/720generic Patch Available
[SECURITY] [DLA 2366-1] imagemagick security update
https://lists.debian.org/debian-lts-announce/2020/09/msg00007.htmlFrequently asked(5)
What is CVE-2017-14626?
CVE-2017-14626 is a critical vulnerability published on September 21, 2017. ImageMagick 7.0.7-0 Q16 has a NULL Pointer Dereference vulnerability in the function sixel_decode in coders/sixel.c.
When was CVE-2017-14626 disclosed?
CVE-2017-14626 was first published in the National Vulnerability Database on September 21, 2017, with the most recent update on May 13, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2017-14626 actively exploited?
CVE-2017-14626 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 83.5% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2017-14626?
CVE-2017-14626 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2017-14626?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2017-14626, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2017-14626
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