CVE-2026-19999

MEDIUMPre-NVD 6.36.3—
EchelonGraph scoreMEDIUM confidence

Score 6.3 from GitHub Security Advisory (severity: LOW) published 2026-08-17. A secondary CVSS source baseline 6.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this weekElevated
6.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.3%CVSS: 6.3Exploit: Elevated riskExposed services: Not assessed

An upstream fix is merged but not yet released — mitigate (WAF / firewall / segmentation) until the release ships, then apply it.

A security vulnerability has been detected in Open Asset Import Library Assimp Assimp 17c12da. The affected element is the function Assimp::MDLImporter::ParseBoneTrafoKeys_3DGS_MDL7 of the file code/AssetLib/MDL/MDLLoader.cpp of the component 3DGS MDL7 Bone Transformation Key Parser. The manipulation of the argument transmatrix_count/pcBoneTransforms leads to buffer overflow. It is possible to initiate the attack remotely. The exploit has been disclosed publicly and may be used. The identifier of the patch is 50d767984e78d51b53e2020fdf0967fd624bc377. It is recommended to apply a patch to fix this issue.

CVSS v3
6.3
EG Score
6.3MEDIUMmedium confidence
EG Risk
44
EG Risk 44/100CISA 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
Severity63% × 45%
Exploitation40% × 40%
Automatability0% × 15%
CISA SSVC: Track at low or medium mission impact; Track* at high (mission-essential systems).
Action: An upstream fix is merged but not yet in a tagged release. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines until it ships, then apply the release.
EPSS PROB
0.3%
EPSS %ILE
17th
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Track* at high (mission-essential systems).

An upstream fix is merged but not yet in a tagged release. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines until it ships, then apply the release.

Exploitation public PoC (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

August 17, 2026

Last Modified

August 20, 2026

Advisory Details (4)

Auto-updated Aug 17, 2026
Upstream fix merged — awaiting tagged release. Sources: github_pr, github_commit.
github_commit

commit 50d767984e78 (assimp/assimp)

Fix landed in assimp/assimp commit 50d767984e78 — awaiting tagged release

https://github.com/assimp/assimp/commit/50d767984e78d51b53e2020fdf0967fd624bc377
generic
https://github.com/user-attachments/files/27429337/poc.zip
github_pr

Fix mdl buffer overflow issue 6633

Fix merged in assimp/assimp PR #6759 on 2026-08-10 — awaiting tagged release

https://github.com/assimp/assimp/pull/6759
generic

Bug: Heap-buffer-overflow in MDLImporter::ParseBoneTrafoKeys_3DGS_MDL7 · Issue #6633 · assimp/assimp · GitHub

https://github.com/assimp/assimp/issues/6633

Vendor Advisories for CVE-2026-19999(1)

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

Affected Packages

(3 across 3 ecosystems)
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
assimp5.2.5~ds0-1 ... 6.0.5+ds-1 (14 versions)
  • every version on: no fix on record
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
assimp5.4.3+ds-2 ... 6.0.5+ds-1 (7 versions)
  • every version on: no fix on record
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
assimp5.4.3+ds-2 ... 6.0.5+ds-1 (7 versions)
  • every version on: no fix on record
—

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 15× in last 7d / 68× 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 132 total refreshes for this CVE.

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

Related CVEs(same product + same CWE)

Frequently asked(5)

What is CVE-2026-19999?
CVE-2026-19999 is a medium vulnerability published on August 17, 2026. A security vulnerability has been detected in Open Asset Import Library Assimp Assimp 17c12da. The affected element is the function Assimp::MDLImporter::ParseBoneTrafoKeys3DGSMDL7 of the file code/AssetLib/MDL/MDLLoader.cpp of the component 3DGS MDL7 Bone Transformation Key Parser. The manipulation…
When was CVE-2026-19999 disclosed?
CVE-2026-19999 was first published on August 17, 2026, with the most recent update on August 20, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-19999 actively exploited?
CVE-2026-19999 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.3% probability of exploitation in the next 30 days (17th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-19999?
CVE-2026-19999 has a CVSS base score of 6.3 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-19999?
An upstream fix for CVE-2026-19999 has been merged but is not yet in a tagged release. Until it ships, restrict network exposure of the affected system or apply the vendor's mitigation, then update to the release that contains the fix. The vendor advisories EchelonGraph has for CVE-2026-19999 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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