CVE-2023-39327

MEDIUMNVD 4.34.3—
EchelonGraph scoreMEDIUM confidence

Score 4.3 from GitHub Security Advisory published 2024-07-13. NVD baseline CVSS 4.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
4.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.6%CVSS: 4.3Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

A flaw was found in OpenJPEG. Maliciously constructed pictures can cause the program to enter a large loop and continuously print warning messages on the terminal.

CVSS v3
4.3
EG Score
4.3MEDIUMmedium confidence
EG Risk
20
EG Risk 20/100CISA SSVC

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
Severity43% × 45%
Exploitation1% × 40%
Automatability0% × 15%
CISA SSVC: Track at every mission impact level.
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.6%
EPSS %ILE
44th
KEV
Not listed

CISA SSVCTrack at every mission impact level.

A fix is available. Apply it within your standard update timelines.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

July 13, 2024

Last Modified

September 21, 2026

Advisory Details (4)

Auto-updated Sep 21, 2026
Patch available. Sources: redhat.
generic

Malicious files can cause the program to enter a large loop · Issue #1472 · uclouvain/openjpeg · GitHub

https://github.com/uclouvain/openjpeg/issues/1472
redhatMentions a patch (unverified)

2295812 – (CVE-2023-39327) CVE-2023-39327 openjpeg: Malicious files can cause the program to enter a large loop

https://bugzilla.redhat.com/show_bug.cgi?id=2295812
redhatMentions a patch (unverified)

CVE-2023-39327 - Red Hat Customer Portal

Affected: Red Hat Enterprise Linux 8 or OpenShift Container Platform 4, is affected by this vulnerability and a fix may be released to a

https://access.redhat.com/security/cve/CVE-2023-39327
redhatMentions a patch (unverified)
https://access.redhat.com/errata/RHSA-2026:4128

Vendor Advisories for CVE-2023-39327(2)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(3)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
ubuntulibopenjpip7 (2.3.0-2+deb10u2ubuntu0.1~esm2) @ bionic2026-09-21ubuntu
ubuntulibgs9-common (9.26~dfsg+0-0ubuntu0.16.04.14+esm9) @ xenial2026-09-21ubuntu
redhatrhaiis/model-opt-cuda-rhel9:17727138302026-03-09redhat

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

(4 across 4 ecosystems)
Debian:11(1)
PackageVulnerable rangeFix by version rangeDependents
openjpeg22.4.0-3 ... 2.5.4-1.1 (19 versions)
  • every version on: no fix on record
—
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
openjpeg22.5.0-2 ... 2.5.4-1.1 (13 versions)
  • every version on: no fix on record
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
openjpeg22.5.3-2 ... 2.5.4-1.1 (6 versions)
  • every version on: no fix on record
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
openjpeg22.5.3-2 ... 2.5.4-1.1 (6 versions)
  • every version on: no fix on record
—

Weakness Classification(1)

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

Additional Vendor Advisories

(2)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 8× in last 7d / 38× 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 206 total refreshes for this CVE.

  1. 2026-10-09 20:05 UTCEPSS rescore
  2. 2026-10-08 17:06 UTCEPSS rescore
  3. 2026-10-07 23:46 UTCEPSS rescore
  4. 2026-10-06 15:15 UTCEPSS rescore
  5. 2026-10-05 17:41 UTCEPSS rescore
  6. 2026-10-04 23:20 UTCEPSS rescore
  7. 2026-10-03 14:23 UTCEPSS rescore
  8. 2026-10-03 14:23 UTCEPSS rescore
  9. 2026-10-01 19:48 UTCEPSS rescore
  10. 2026-09-30 16:28 UTCEG score recompute
  11. 2026-09-30 15:01 UTCEPSS rescore
  12. 2026-09-29 15:17 UTCEPSS rescore
  13. 2026-09-28 13:49 UTCEPSS rescore
  14. 2026-09-28 13:49 UTCEPSS rescore
  15. 2026-09-27 13:42 UTCEPSS rescore
  16. 2026-09-27 13:42 UTCEPSS rescore
  17. 2026-09-26 15:56 UTCEPSS rescore
  18. 2026-09-26 00:22 UTCEPSS rescore
  19. 2026-09-24 14:01 UTCEPSS rescore
  20. 2026-09-24 14:01 UTCEPSS rescore
  21. 2026-09-23 13:46 UTCEPSS rescore
  22. 2026-09-21 18:29 UTCVendor advisory
  23. 2026-09-21 18:29 UTCGHSA enrichment
  24. 2026-09-21 17:45 UTCEG score recompute
  25. 2026-09-21 17:45 UTCVendor advisory
Show 75 more
  1. 2026-09-21 17:45 UTCGHSA enrichment
  2. 2026-09-21 00:36 UTCOSV refresh
  3. 2026-09-20 20:14 UTCEPSS rescore
  4. 2026-09-20 20:14 UTCEPSS rescore
  5. 2026-09-18 19:25 UTCEPSS rescore
  6. 2026-09-17 19:25 UTCEPSS rescore
  7. 2026-09-16 14:06 UTCEPSS rescore
  8. 2026-09-16 14:06 UTCEPSS rescore
  9. 2026-09-16 05:11 UTCEPSS rescore
  10. 2026-09-13 16:44 UTCEPSS rescore
  11. 2026-09-12 14:58 UTCEPSS rescore
  12. 2026-09-11 14:50 UTCEPSS rescore
  13. 2026-09-11 09:34 UTCEPSS rescore
  14. 2026-09-08 21:58 UTCEPSS rescore
  15. 2026-09-07 15:59 UTCEPSS rescore
  16. 2026-09-06 13:45 UTCEPSS rescore
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  18. 2026-09-05 15:26 UTCEPSS rescore
  19. 2026-09-04 13:58 UTCEPSS rescore
  20. 2026-09-04 05:04 UTCEPSS rescore
  21. 2026-09-02 14:09 UTCEPSS rescore
  22. 2026-09-01 23:31 UTCOSV refresh
  23. 2026-09-01 13:51 UTCEPSS rescore
  24. 2026-08-30 19:15 UTCEPSS rescore
  25. 2026-08-30 01:20 UTCEPSS rescore
  26. 2026-08-28 21:39 UTCEPSS rescore
  27. 2026-08-27 14:23 UTCEPSS rescore
  28. 2026-08-26 14:44 UTCEPSS rescore
  29. 2026-08-26 14:43 UTCEPSS rescore
  30. 2026-08-25 13:46 UTCEPSS rescore
  31. 2026-08-23 00:17 UTCEPSS rescore
  32. 2026-08-21 23:47 UTCEPSS rescore
  33. 2026-08-20 22:53 UTCEPSS rescore
  34. 2026-08-19 17:02 UTCEPSS rescore
  35. 2026-08-19 17:02 UTCEPSS rescore
  36. 2026-08-18 13:46 UTCEPSS rescore
  37. 2026-08-17 13:45 UTCEPSS rescore
  38. 2026-08-16 14:54 UTCEPSS rescore
  39. 2026-08-16 02:12 UTCEPSS rescore
  40. 2026-08-16 01:37 UTCOSV refresh
  41. 2026-08-15 01:28 UTCEPSS rescore
  42. 2026-08-15 01:28 UTCEPSS rescore
  43. 2026-08-13 21:58 UTCEPSS rescore
  44. 2026-08-12 13:48 UTCEPSS rescore
  45. 2026-08-11 13:39 UTCEPSS rescore
  46. 2026-08-09 13:44 UTCEPSS rescore
  47. 2026-08-09 13:44 UTCEPSS rescore
  48. 2026-08-08 16:35 UTCEPSS rescore
  49. 2026-08-07 16:25 UTCEPSS rescore
  50. 2026-08-06 13:45 UTCEPSS rescore
  51. 2026-08-05 19:15 UTCEPSS rescore
  52. 2026-08-04 15:07 UTCEPSS rescore
  53. 2026-08-03 10:34 UTCEPSS rescore
  54. 2026-08-03 10:34 UTCEPSS rescore
  55. 2026-08-02 02:25 UTCEPSS rescore
  56. 2026-08-02 02:25 UTCEPSS rescore
  57. 2026-08-01 04:14 UTCEPSS rescore
  58. 2026-08-01 04:13 UTCEPSS rescore
  59. 2026-07-31 19:12 UTCOSV refresh
  60. 2026-07-30 16:26 UTCEPSS rescore
  61. 2026-07-30 16:26 UTCEPSS rescore
  62. 2026-07-30 01:28 UTCEPSS rescore
  63. 2026-07-30 01:28 UTCEPSS rescore
  64. 2026-07-28 15:34 UTCEPSS rescore
  65. 2026-07-28 15:34 UTCEPSS rescore
  66. 2026-07-26 14:52 UTCEPSS rescore
  67. 2026-07-26 14:52 UTCEPSS rescore
  68. 2026-07-25 14:16 UTCEPSS rescore
  69. 2026-07-24 14:16 UTCEPSS rescore
  70. 2026-07-23 14:16 UTCEPSS rescore
  71. 2026-07-23 14:16 UTCEPSS rescore
  72. 2026-07-23 02:25 UTCEG score recompute
  73. 2026-07-22 23:12 UTCEG score recompute
  74. 2026-07-22 14:06 UTCEPSS rescore
  75. 2026-07-21 15:23 UTCEPSS rescore

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Frequently asked(5)

What is CVE-2023-39327?
CVE-2023-39327 is a medium vulnerability published on July 13, 2024. A flaw was found in OpenJPEG. Maliciously constructed pictures can cause the program to enter a large loop and continuously print warning messages on the terminal.
When was CVE-2023-39327 disclosed?
CVE-2023-39327 was first published on July 13, 2024, with the most recent update on September 21, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2023-39327 actively exploited?
CVE-2023-39327 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.6% probability of exploitation in the next 30 days (44th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2023-39327?
CVE-2023-39327 has a CVSS v3 base score of 4.3 (NVD).
How do I remediate CVE-2023-39327?
A fix for CVE-2023-39327 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2023-39327 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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