CVE-2026-43903

HIGHNVD 7.87.8—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 7.8 under NVD CVSS v3. EPSS exploit probability: 0.1%, top 97% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
Elevated
7.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.8Exploit: Elevated riskExposed: 0

A fix is available — apply it.

OpenImageIO is a toolset for reading, writing, and manipulating image files of any image file format relevant to VFX / animation. Prior to 3.0.18.0 and 3.1.13.0, sgiinput.cpp:265,274 use OIIO_DASSERT for bounds checking in the RLE decode loop. In release builds, OIIO_DASSERT compiles to ((void)sizeof(x)) (dassert.h:210), making all bounds checks no-ops. A crafted .sgi file with RLE count exceeding scanline width causes heap buffer overflow and crash. This vulnerability is fixed in 3.0.18.0 and 3.1.13.0.

CVSS v3
7.8
EG Score
7.8(medium)
EG Risk
51(Track*)
EG Risk 51/100SSVC: 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
Severity78% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Watch closely — could escalate to Attend.
EPSS PROB
0%
EPSS %ILE
3%
KEV
Not listed

Published

May 14, 2026

Last Modified

May 15, 2026

Advisory Details (1)

Auto-updated May 14, 2026
🔬 Proof of concept available. Patch available. Sources: github.
github Patch Available🟡 PoC Available

SGI RLE decoder heap buffer overflow OIIO_DASSERT bounds checks are no-ops in release builds · Advisory · AcademySoftwareFoundation/OpenImageIO · GitHub

https://github.com/AcademySoftwareFoundation/OpenImageIO/security/advisories/GHSA-jg3q-vm3q-2j35

Patch Availability(1)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntupython-openimageio (1.7.17~dfsg0-1ubuntu2+esm1) @ bionic2026-08-23ubuntu

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 rangeFixed inDependents
openimageio2.2.10.1+dfsg-1 ... 2.5.7.0+dfsg-1 (43 versions)——
Debian:12(1)
PackageVulnerable rangeFixed inDependents
openimageio2.4.12.0+dfsg-1 ... 2.5.7.0+dfsg-1 (18 versions)——
Debian:13(1)
PackageVulnerable rangeFixed inDependents
openimageio2.5.18.0+dfsg-1, 2.5.19.1+dfsg-1, 2.5.19.1+dfsg-2——
Debian:14(1)
PackageVulnerable rangeFixed inDependents
openimageio2.5.18.0+dfsg-1, 2.5.19.1+dfsg-1, 2.5.19.1+dfsg-2——

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 6× in last 7d / 30× 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 168 total refreshes for this CVE.

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

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Frequently asked(5)

What is CVE-2026-43903?
CVE-2026-43903 is a high vulnerability published on May 14, 2026. OpenImageIO is a toolset for reading, writing, and manipulating image files of any image file format relevant to VFX / animation. Prior to 3.0.18.0 and 3.1.13.0, sgiinput.cpp:265,274 use OIIODASSERT for bounds checking in the RLE decode loop. In release builds, OIIODASSERT compiles to…
When was CVE-2026-43903 disclosed?
CVE-2026-43903 was first published in the National Vulnerability Database on May 14, 2026, with the most recent update on May 15, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-43903 actively exploited?
CVE-2026-43903 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 97.4% of all scored CVEs.
What is the CVSS score of CVE-2026-43903?
CVE-2026-43903 has a CVSS v3 base score of 7.8 (NVD).
How do I remediate CVE-2026-43903?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-43903, 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.

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