CVE-2025-15666

MEDIUMPre-NVD 5.35.3
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to the CVSS score beside it.

Score 5.3 from GitHub Security Advisory (severity: LOW) published 2026-07-01. A secondary CVSS source baseline 5.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, a secondary CVSS source
Trending — 3 sources updated this week
5.3EG
EchelonGraph verdictMonitorRemediate within your standard update timelines (the SSVC decision on this page).
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.1%CVSS: 5.3Exploit: None knownExposed services: Not assessed

No fix is confirmed yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for the fix.

A security vulnerability has been detected in Open Asset Import Library Assimp up to 5.4.3. Affected by this vulnerability is the function Assimp::SceneCombiner::Copy of the file code/Common/SceneCombiner.cpp of the component Model File Handler. Such manipulation of the argument width/height leads to heap-based buffer overflow. An attack has to be approached locally. The exploit has been disclosed publicly and may be used. This and similar defects are tracked and handled via issue #6128.

CVSS v3
5.3
EG Score
5.3MEDIUMmedium confidence
EG Risk
24
EG Risk 24/100

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 (value × EchelonGraph’s weight)
Severity53% × 45%
The EG Score, 5.3 of 10.
Exploitation0.1% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability0% × 15%
CISA's BOD 26-04 default: no one has published Automatable for this CVE, and CISA treats it as “no” for a CVE not in KEV.
SSVC (CISA's decision table, applied by EchelonGraph): Track at every mission impact level.
Exploitation none (no CISA value, KEV listing or exploit code on record) · Automatable no (CISA's BOD 26-04 default) · Technical impact partial (CVSS v4.0 confidentiality and integrity impact neither High). EchelonGraph holds no SSVC assessment of this CVE from CISA: none of these inputs is from Vulnrichment. EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines, and watch the vendor's advisory for the fix.
EPSS PROB
0.1%
EPSS %ILE
1st
KEV
Not listed

SSVC (CISA's decision table, applied by EchelonGraph)Track at every mission impact level.

No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines, and watch the vendor's advisory for the fix.

Exploitation none (no CISA value, KEV listing or exploit code on record) · Automatable no (CISA's BOD 26-04 default) · Technical impact partial (CVSS v4.0 confidentiality and integrity impact neither High). EchelonGraph holds no SSVC assessment of this CVE from CISA: none of these inputs is from Vulnrichment. EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)60 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA's BOD 26-04 default) · Technical impact partial (CVSS v4.0 confidentiality and integrity impact neither High). Where an input reads “CISA's BOD 26-04 default”, no one has published it for this CVE, and CISA's implementation guidance says: “If “Automatable” and “Technical Impact” information items about a CVE ID are not available and the CVE ID is not in the KEV Catalog, CISA will treat its values as “no” and “total,” respectively, until CISA or a third party provides metadata about the CVE ID. CISA will always provide the Vulnrichment data for a CVE ID listed in the KEV Catalog.” Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

July 1, 2026

Last Modified

October 6, 2026

Advisory Details (1)

Auto-updated Jul 1, 2026
No fix on record yet.
Web page

Bug: Heap-based Buffer Overflow in Assimp::SceneCombiner::Copy(aiTexture**, aiTexture const*) · Issue #6079 · assimp/assimp · GitHub

https://github.com/assimp/assimp/issues/6079

Vendor Advisories for CVE-2025-15666(1)

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

Affected Packages

(4 across 4 ecosystems)
Debian:11(1)
PackageVulnerable rangeFix by version rangeDependents
assimp5.0.1~ds0-2 ... 6.0.5+ds-1 (34 versions)
  • every version on: no fix on record
—
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 12× in last 7d / 38× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. 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. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

Showing the most recent 97 of 186 refreshes on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. 3 repeat rows among the latest 100 are merged into the row they repeat. The 89 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-11 20:53 UTCEG score recompute
  2. 2026-10-11 19:03 UTCEG score recompute
  3. 2026-10-11 15:43 UTCEG score recompute
  4. 2026-10-11 13:46 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  5. 2026-10-10 19:58 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  6. 2026-10-09 20:06 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  7. 2026-10-08 17:08 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  8. 2026-10-07 23:46 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  9. 2026-10-06 22:12 UTCEG score recompute
  10. 2026-10-06 22:12 UTCGHSA enrichmentGHSA-5hv8-2h72-hc2x · GitHub severity LOW · GitHub CVSS 5.3
  11. 2026-10-06 15:16 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  12. 2026-10-05 17:42 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  13. 2026-10-04 23:21 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  14. 2026-10-03 14:24 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  15. 2026-10-01 19:48 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  16. 2026-09-30 21:30 UTCEG score recompute
  17. 2026-09-30 21:30 UTCGHSA enrichmentGHSA-5hv8-2h72-hc2x · GitHub severity LOW · GitHub CVSS 5.3
  18. 2026-09-30 15:02 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  19. 2026-09-28 13:50 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  20. 2026-09-26 15:57 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  21. 2026-09-24 14:02 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  22. 2026-09-23 13:46 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  23. 2026-09-23 06:57 UTCEG score recompute
  24. 2026-09-23 06:57 UTCGHSA enrichmentGHSA-5hv8-2h72-hc2x · GitHub severity LOW · GitHub CVSS 5.3
  25. 2026-09-22 14:47 UTCEPSS rescoreEPSS 0.2% · 6th percentile
Show 72 more
  1. 2026-09-20 20:14 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  2. 2026-09-18 19:27 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  3. 2026-09-18 06:37 UTCEG score recompute
  4. 2026-09-18 06:37 UTCGHSA enrichmentGHSA-5hv8-2h72-hc2x · GitHub severity LOW · GitHub CVSS 5.3
  5. 2026-09-16 14:06 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  6. 2026-09-16 05:13 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  7. 2026-09-15 03:08 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  8. 2026-09-14 00:27 UTCEG score recompute
  9. 2026-09-14 00:27 UTCGHSA enrichmentGHSA-5hv8-2h72-hc2x · GitHub severity LOW · GitHub CVSS 5.3
  10. 2026-09-13 16:45 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  11. 2026-09-12 14:59 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  12. 2026-09-12 14:51 UTCEG score recompute
  13. 2026-09-12 14:51 UTCGHSA enrichmentGHSA-5hv8-2h72-hc2x · GitHub severity LOW · GitHub CVSS 5.3
  14. 2026-09-11 09:35 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  15. 2026-09-10 09:33 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  16. 2026-09-08 21:59 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  17. 2026-09-07 16:00 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  18. 2026-09-06 13:46 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  19. 2026-09-06 02:53 UTCEG score recompute
  20. 2026-09-06 02:53 UTCGHSA enrichmentGHSA-5hv8-2h72-hc2x · GitHub severity LOW · GitHub CVSS 5.3
  21. 2026-09-04 13:59 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  22. 2026-09-04 05:05 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  23. 2026-09-02 14:10 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  24. 2026-09-01 13:52 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  25. 2026-08-30 19:16 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  26. 2026-08-30 13:18 UTCEG score recompute
  27. 2026-08-30 13:18 UTCGHSA enrichmentGHSA-5hv8-2h72-hc2x · GitHub severity LOW · GitHub CVSS 5.3
  28. 2026-08-30 01:21 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  29. 2026-08-28 21:40 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  30. 2026-08-27 22:29 UTCEG score recompute
  31. 2026-08-27 22:29 UTCGHSA enrichmentGHSA-5hv8-2h72-hc2x · GitHub severity LOW · GitHub CVSS 5.3
  32. 2026-08-27 14:24 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  33. 2026-08-26 14:45 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  34. 2026-08-25 13:47 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  35. 2026-08-24 14:15 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  36. 2026-08-24 10:58 UTCEG score recompute
  37. 2026-08-24 10:58 UTCGHSA enrichmentGHSA-5hv8-2h72-hc2x · GitHub severity LOW · GitHub CVSS 5.3
  38. 2026-08-23 09:02 UTCGHSA enrichmentGHSA-5hv8-2h72-hc2x · GitHub severity LOW · GitHub CVSS 5.3
  39. 2026-08-22 08:30 UTCEG score recompute
  40. 2026-08-22 08:30 UTCGHSA enrichmentGHSA-5hv8-2h72-hc2x · GitHub severity LOW · GitHub CVSS 5.3
  41. 2026-08-21 23:48 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  42. 2026-08-21 07:58 UTCEG score recompute
  43. 2026-08-21 07:58 UTCGHSA enrichmentGHSA-5hv8-2h72-hc2x · GitHub severity LOW · GitHub CVSS 5.3
  44. 2026-08-20 22:54 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  45. 2026-08-20 07:27 UTCEG score recompute
  46. 2026-08-20 07:27 UTCGHSA enrichmentGHSA-5hv8-2h72-hc2x · GitHub severity LOW · GitHub CVSS 5.3
  47. 2026-08-19 17:02 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  48. 2026-08-19 06:55 UTCEG score recompute
  49. 2026-08-19 06:55 UTCGHSA enrichmentGHSA-5hv8-2h72-hc2x · GitHub severity LOW · GitHub CVSS 5.3
  50. 2026-08-18 13:47 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  51. 2026-08-18 06:20 UTCEG score recompute
  52. 2026-08-18 06:20 UTCGHSA enrichmentGHSA-5hv8-2h72-hc2x · GitHub severity LOW · GitHub CVSS 5.3
  53. 2026-08-17 13:46 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  54. 2026-08-17 04:39 UTCEG score recompute
  55. 2026-08-17 04:39 UTCGHSA enrichmentGHSA-5hv8-2h72-hc2x · GitHub severity LOW · GitHub CVSS 5.3
  56. 2026-08-16 14:55 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  57. 2026-08-16 04:07 UTCEG score recompute
  58. 2026-08-16 04:07 UTCGHSA enrichmentGHSA-5hv8-2h72-hc2x · GitHub severity LOW · GitHub CVSS 5.3
  59. 2026-08-16 02:13 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  60. 2026-08-15 03:36 UTCEG score recompute
  61. 2026-08-15 03:36 UTCGHSA enrichmentGHSA-5hv8-2h72-hc2x · GitHub severity LOW · GitHub CVSS 5.3
  62. 2026-08-15 01:29 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  63. 2026-08-14 03:04 UTCEG score recompute
  64. 2026-08-14 03:04 UTCGHSA enrichmentGHSA-5hv8-2h72-hc2x · GitHub severity LOW · GitHub CVSS 5.3
  65. 2026-08-13 21:59 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  66. 2026-08-13 02:32 UTCEG score recompute
  67. 2026-08-13 02:32 UTCGHSA enrichmentGHSA-5hv8-2h72-hc2x · GitHub severity LOW · GitHub CVSS 5.3
  68. 2026-08-12 13:49 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  69. 2026-08-12 02:01 UTCEG score recompute
  70. 2026-08-12 02:01 UTCGHSA enrichmentGHSA-5hv8-2h72-hc2x · GitHub severity LOW · GitHub CVSS 5.3
  71. 2026-08-11 13:41 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  72. 2026-08-11 01:29 UTCEG score recompute

Related CVEs(same product + same CWE)

Frequently asked(5)

What is CVE-2025-15666?
CVE-2025-15666 is a medium-severity vulnerability; its CVE record was published on July 1, 2026. A security vulnerability has been detected in Open Asset Import Library Assimp up to 5.4.3. Affected by this vulnerability is the function Assimp::SceneCombiner::Copy of the file code/Common/SceneCombiner.cpp of the component Model File Handler. Such manipulation of the argument width/height leads…
When was the CVE record for CVE-2025-15666 published?
The CVE record for CVE-2025-15666 was published on July 1, 2026. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of October 6, 2026; the record at its source may have been updated since.
Is CVE-2025-15666 actively exploited?
CVE-2025-15666 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.1% probability of exploitation in the next 30 days (1st percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2025-15666?
CVE-2025-15666 has a CVSS base score of 5.3 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2025-15666?
No fix for CVE-2025-15666 is confirmed yet. Until one is published, restrict network exposure of the affected system or apply the vendor's mitigation — for example, keep it off the internet or limit it to trusted networks — and watch the vendor's advisory for the fix. The vendor advisories EchelonGraph has for CVE-2025-15666 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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