CVE-2018-5248

HIGHNVD 8.88.8—
EchelonGraph scoreMEDIUM confidence

Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2022-05-14. NVD baseline CVSS 8.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
8.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 4%CVSS: 8.8Exploit: None knownExposed: 0

A fix is available — apply it.

In ImageMagick 7.0.7-17 Q16, there is a heap-based buffer over-read in coders/sixel.c in the ReadSIXELImage function, related to the sixel_decode function.

CVSS v3
8.8
EG Score
8.8(medium)
EG Risk
46(Track)
EG Risk 46/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity88% × 45%
Exploitation4% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
4%
EPSS %ILE
89%
KEV
Not listed

Published

January 5, 2018

Last Modified

November 21, 2024

Advisory Details (4)

Auto-updated Aug 19, 2026
No patch confirmed yet.
generic

[SECURITY] [DSA 4245-1] imagemagick security update

https://www.debian.org/security/2018/dsa-4245
generic

[SECURITY] [DSA 4204-1] imagemagick security update

https://www.debian.org/security/2018/dsa-4204
generic

heap-buffer-overflow in sixel_decode · Issue #927 · ImageMagick/ImageMagick · GitHub

https://github.com/ImageMagick/ImageMagick/issues/927
generic

CVE-2018-5248 - PSIRT.COM

http://www.securityfocus.com/bid/102431

Patch Availability(1)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntuperlmagick (8:6.8.9.9-7ubuntu5.11) @ xenial2026-05-28ubuntu

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(6 across 6 ecosystems)
Debian:11(1)
PackageVulnerable rangeFixed inDependents
imagemagick—8:6.9.9.34+dfsg-3—
Debian:12(1)
PackageVulnerable rangeFixed inDependents
imagemagick—8:6.9.9.34+dfsg-3—
Debian:13(1)
PackageVulnerable rangeFixed inDependents
imagemagick—8:6.9.9.34+dfsg-3—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
imagemagick—8:6.9.9.34+dfsg-3—
Debian:8(1)
PackageVulnerable rangeFixed inDependents
imagemagick8:6.8.9.9-5 ... 8:6.8.9.9-5+deb8u9 (12 versions)8:6.8.9.9-5+deb8u12—
Debian:9(1)
PackageVulnerable rangeFixed inDependents
imagemagick8:6.9.7.4+dfsg-11, 8:6.9.7.4+dfsg-11+deb9u1, 8:6.9.7.4+dfsg-11+deb9u2, 8:6.9.7.4+dfsg-11+deb9u3, 8:6.9.7.4+dfsg-11+deb9u48:6.9.7.4+dfsg-11+deb9u5—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

All Vendor Advisories

(1)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 4× in last 7d / 24× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 140 total refreshes for this CVE.

  1. 2026-09-06 13:44 UTCEPSS rescore
  2. 2026-09-04 13:56 UTCEPSS rescore
  3. 2026-09-04 05:02 UTCEPSS rescore
  4. 2026-09-02 14:07 UTCEPSS rescore
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  6. 2026-08-30 19:13 UTCEPSS rescore
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  10. 2026-08-26 14:42 UTCEPSS rescore
  11. 2026-08-25 13:45 UTCEPSS rescore
  12. 2026-08-24 14:11 UTCEPSS rescore
  13. 2026-08-23 01:06 UTCOSV refresh
  14. 2026-08-21 23:45 UTCEPSS rescore
  15. 2026-08-20 22:51 UTCEPSS rescore
  16. 2026-08-19 17:00 UTCEPSS rescore
  17. 2026-08-18 13:44 UTCEPSS rescore
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  24. 2026-08-09 13:43 UTCEPSS rescore
  25. 2026-08-08 16:32 UTCEPSS rescore
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  1. 2026-08-07 16:23 UTCEPSS rescore
  2. 2026-08-07 04:26 UTCOSV refresh
  3. 2026-08-06 13:42 UTCEPSS rescore
  4. 2026-08-04 15:05 UTCEPSS rescore
  5. 2026-08-04 10:33 UTCEPSS rescore
  6. 2026-08-03 10:31 UTCEPSS rescore
  7. 2026-08-02 02:23 UTCEPSS rescore
  8. 2026-08-01 04:12 UTCEPSS rescore
  9. 2026-07-30 16:24 UTCEPSS rescore
  10. 2026-07-30 01:27 UTCEPSS rescore
  11. 2026-07-28 15:32 UTCEPSS rescore
  12. 2026-07-27 14:05 UTCEPSS rescore
  13. 2026-07-26 14:51 UTCEPSS rescore
  14. 2026-07-25 14:14 UTCEPSS rescore
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  18. 2026-07-23 14:15 UTCEPSS rescore
  19. 2026-07-23 14:15 UTCEPSS rescore
  20. 2026-07-23 01:36 UTCEG score recompute
  21. 2026-07-22 22:16 UTCEG score recompute
  22. 2026-07-22 14:05 UTCEPSS rescore
  23. 2026-07-21 19:48 UTCOSV refresh
  24. 2026-07-21 15:22 UTCEPSS rescore
  25. 2026-07-20 17:04 UTCEPSS rescore
  26. 2026-07-20 17:04 UTCEPSS rescore
  27. 2026-07-19 14:28 UTCEPSS rescore
  28. 2026-07-19 14:28 UTCEPSS rescore
  29. 2026-07-19 02:26 UTCEPSS rescore
  30. 2026-07-19 02:26 UTCEPSS rescore
  31. 2026-07-16 16:59 UTCEPSS rescore
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  34. 2026-07-15 01:56 UTCEPSS rescore
  35. 2026-07-13 22:27 UTCEPSS rescore
  36. 2026-07-13 06:10 UTCEPSS rescore
  37. 2026-07-12 05:43 UTCEPSS rescore
  38. 2026-07-09 19:06 UTCEPSS rescore
  39. 2026-07-08 15:11 UTCEPSS rescore
  40. 2026-07-08 15:11 UTCEPSS rescore
  41. 2026-07-06 16:25 UTCEPSS rescore
  42. 2026-07-06 16:24 UTCEPSS rescore
  43. 2026-07-06 02:20 UTCEPSS rescore
  44. 2026-07-05 02:27 UTCEPSS rescore
  45. 2026-07-04 15:26 UTCOSV refresh
  46. 2026-07-04 06:28 UTCEPSS rescore
  47. 2026-07-04 06:28 UTCEPSS rescore
  48. 2026-07-01 15:03 UTCEPSS rescore
  49. 2026-07-01 15:03 UTCEPSS rescore
  50. 2026-06-30 23:20 UTCEPSS rescore
  51. 2026-06-30 23:20 UTCEPSS rescore
  52. 2026-06-29 14:03 UTCEPSS rescore
  53. 2026-06-28 14:04 UTCEPSS rescore
  54. 2026-06-28 04:53 UTCEPSS rescore
  55. 2026-06-28 04:53 UTCEPSS rescore
  56. 2026-06-27 03:06 UTCEPSS rescore
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  58. 2026-06-25 13:47 UTCEPSS rescore
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  60. 2026-06-24 14:02 UTCEPSS rescore
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  62. 2026-06-23 21:30 UTCEPSS rescore
  63. 2026-06-23 21:30 UTCEPSS rescore
  64. 2026-06-22 14:23 UTCEPSS rescore
  65. 2026-06-22 14:23 UTCEPSS rescore
  66. 2026-06-21 14:54 UTCEPSS rescore
  67. 2026-06-21 14:54 UTCEPSS rescore
  68. 2026-06-21 01:57 UTCEPSS rescore
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  70. 2026-06-19 19:23 UTCEPSS rescore
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  72. 2026-06-18 17:50 UTCEPSS rescore
  73. 2026-06-18 17:50 UTCEPSS rescore
  74. 2026-06-17 17:50 UTCEPSS rescore
  75. 2026-06-16 17:50 UTCEPSS rescore

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2018-5248?
CVE-2018-5248 is a high vulnerability published on January 5, 2018. In ImageMagick 7.0.7-17 Q16, there is a heap-based buffer over-read in coders/sixel.c in the ReadSIXELImage function, related to the sixel_decode function.
When was CVE-2018-5248 disclosed?
CVE-2018-5248 was first published in the National Vulnerability Database on January 5, 2018, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2018-5248 actively exploited?
CVE-2018-5248 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 4% probability of exploitation in the next 30 days, which ranks it in the top 11.5% of all scored CVEs.
What is the CVSS score of CVE-2018-5248?
CVE-2018-5248 has a CVSS v3 base score of 8.8 (NVD).
How do I remediate CVE-2018-5248?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2018-5248, 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

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