CVE-2026-63422 (GCVE-0-2026-63422)
Vulnerability from cvelistv5 – Published: 2026-09-18 15:37 – Updated: 2026-09-21 20:50
VLAI
EPSS
VEX
Title
OpenImageIO OpenEXR plugin partial edge tile heap out-of-bounds write
Summary
OpenImageIO is a toolset for reading, writing, and manipulating image files of any image file format relevant to VFX / animation. Prior to 3.0.21.0, 3.1.16.0, and 3.2.0.3-beta1, A valid tiled openexr image whose width is not a multiple of its tile width can trigger an overflow when a caller reads a partial edge-tile rectangle. openexrinput::read_native_tiles() copies each row into the caller buffer using the padded whole-tile scanline_stride rather than user_scanline_bytes for the requested rectangle, resulting in a heap out-of-bounds write and memory corruption. The affected implementation is identified by src/openexr.imageio/exrinput.cpp, OpenEXRInput::read_native_tiles(), partial edge tile, user_scanline_bytes, and scanline_stride, which define the relevant source path, functions, state, and trigger. This issue is fixed in versions 3.0.21.0, 3.1.16.0, and 3.2.0.3-beta1.
Severity
7.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-18 19:24 UTC
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://github.com/AcademySoftwareFoundation/Open… | x_refsource_CONFIRM |
| https://github.com/AcademySoftwareFoundation/Open… | x_refsource_MISC |
| https://github.com/AcademySoftwareFoundation/Open… | x_refsource_MISC |
| https://github.com/AcademySoftwareFoundation/Open… | x_refsource_MISC |
| https://github.com/AcademySoftwareFoundation/Open… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| AcademySoftwareFoundation | OpenImageIO |
Affected:
< 3.0.21.0
Affected: >= 3.1.0.0, < 3.1.16.0 Affected: >= 3.2.0.0-dev, < 3.2.0.3-beta1 |
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-63422",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-09-18T19:24:31.356177Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-09-21T20:50:51.258Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "OpenImageIO",
"vendor": "AcademySoftwareFoundation",
"versions": [
{
"status": "affected",
"version": "\u003c 3.0.21.0"
},
{
"status": "affected",
"version": "\u003e= 3.1.0.0, \u003c 3.1.16.0"
},
{
"status": "affected",
"version": "\u003e= 3.2.0.0-dev, \u003c 3.2.0.3-beta1"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "OpenImageIO is a toolset for reading, writing, and manipulating image files of any image file format relevant to VFX / animation. Prior to 3.0.21.0, 3.1.16.0, and 3.2.0.3-beta1, A valid tiled openexr image whose width is not a multiple of its tile width can trigger an overflow when a caller reads a partial edge-tile rectangle. openexrinput::read_native_tiles() copies each row into the caller buffer using the padded whole-tile scanline_stride rather than user_scanline_bytes for the requested rectangle, resulting in a heap out-of-bounds write and memory corruption. The affected implementation is identified by src/openexr.imageio/exrinput.cpp, OpenEXRInput::read_native_tiles(), partial edge tile, user_scanline_bytes, and scanline_stride, which define the relevant source path, functions, state, and trigger. This issue is fixed in versions 3.0.21.0, 3.1.16.0, and 3.2.0.3-beta1."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 7.8,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"version": "3.1"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-122",
"description": "CWE-122: Heap-based Buffer Overflow",
"lang": "en",
"type": "CWE"
}
]
},
{
"descriptions": [
{
"cweId": "CWE-787",
"description": "CWE-787: Out-of-bounds Write",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-09-18T15:37:57.906Z",
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M"
},
"references": [
{
"name": "https://github.com/AcademySoftwareFoundation/OpenImageIO/security/advisories/GHSA-xh5r-whph-qmc5",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/AcademySoftwareFoundation/OpenImageIO/security/advisories/GHSA-xh5r-whph-qmc5"
},
{
"name": "https://github.com/AcademySoftwareFoundation/OpenImageIO/pull/5295",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/AcademySoftwareFoundation/OpenImageIO/pull/5295"
},
{
"name": "https://github.com/AcademySoftwareFoundation/OpenImageIO/commit/7303134f13b0f9dc738b8ecabecd8c9f90cbd4c9",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/AcademySoftwareFoundation/OpenImageIO/commit/7303134f13b0f9dc738b8ecabecd8c9f90cbd4c9"
},
{
"name": "https://github.com/AcademySoftwareFoundation/OpenImageIO/releases/tag/v3.0.21.0",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/AcademySoftwareFoundation/OpenImageIO/releases/tag/v3.0.21.0"
},
{
"name": "https://github.com/AcademySoftwareFoundation/OpenImageIO/releases/tag/v3.1.16.0",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/AcademySoftwareFoundation/OpenImageIO/releases/tag/v3.1.16.0"
}
],
"source": {
"advisory": "GHSA-xh5r-whph-qmc5",
"discovery": "UNKNOWN"
},
"title": "OpenImageIO OpenEXR plugin partial edge tile heap out-of-bounds write"
}
},
"cveMetadata": {
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"assignerShortName": "GitHub_M",
"cveId": "CVE-2026-63422",
"datePublished": "2026-09-18T15:37:57.906Z",
"dateReserved": "2026-07-16T19:20:28.988Z",
"dateUpdated": "2026-09-21T20:50:51.258Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2026-63422",
"date": "2026-10-03",
"epss": "0.00206",
"percentile": "0.09633"
},
"nvd": {
"cve": {
"affected": [
{
"affectedData": [
{
"product": "OpenImageIO",
"vendor": "AcademySoftwareFoundation",
"versions": [
{
"status": "affected",
"version": "\u003c 3.0.21.0"
},
{
"status": "affected",
"version": "\u003e= 3.1.0.0, \u003c 3.1.16.0"
},
{
"status": "affected",
"version": "\u003e= 3.2.0.0-dev, \u003c 3.2.0.3-beta1"
}
]
}
],
"source": "security-advisories@github.com"
}
],
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:openimageio:openimageio:*:*:*:*:*:*:*:*",
"matchCriteriaId": "58BCF458-A0CC-4E42-B8DC-DA0F17FB9526",
"versionEndExcluding": "3.0.21.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:openimageio:openimageio:*:*:*:*:*:*:*:*",
"matchCriteriaId": "1BF66CB3-6DE8-41F1-98DF-16E17968F4F0",
"versionEndIncluding": "3.1.16.0",
"versionStartIncluding": "3.1.0.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:openimageio:openimageio:3.2.0.0:dev:*:*:*:*:*:*",
"matchCriteriaId": "F43FE0AC-4CFC-485D-8370-37336EB2CEA0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:openimageio:openimageio:3.2.0.2:dev:*:*:*:*:*:*",
"matchCriteriaId": "450296D8-74F5-4847-8433-FE3DFB16C58E",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "OpenImageIO is a toolset for reading, writing, and manipulating image files of any image file format relevant to VFX / animation. Prior to 3.0.21.0, 3.1.16.0, and 3.2.0.3-beta1, A valid tiled openexr image whose width is not a multiple of its tile width can trigger an overflow when a caller reads a partial edge-tile rectangle. openexrinput::read_native_tiles() copies each row into the caller buffer using the padded whole-tile scanline_stride rather than user_scanline_bytes for the requested rectangle, resulting in a heap out-of-bounds write and memory corruption. The affected implementation is identified by src/openexr.imageio/exrinput.cpp, OpenEXRInput::read_native_tiles(), partial edge tile, user_scanline_bytes, and scanline_stride, which define the relevant source path, functions, state, and trigger. This issue is fixed in versions 3.0.21.0, 3.1.16.0, and 3.2.0.3-beta1."
}
],
"id": "CVE-2026-63422",
"lastModified": "2026-09-29T18:56:15.287",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 7.8,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"exploitabilityScore": 1.8,
"impactScore": 5.9,
"source": "security-advisories@github.com",
"type": "Secondary"
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2026-63422",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-09-18T19:24:31.356177Z",
"version": "2.0.3"
}
}
]
},
"published": "2026-09-18T16:17:07.987",
"references": [
{
"source": "security-advisories@github.com",
"tags": [
"Patch"
],
"url": "https://github.com/AcademySoftwareFoundation/OpenImageIO/commit/7303134f13b0f9dc738b8ecabecd8c9f90cbd4c9"
},
{
"source": "security-advisories@github.com",
"tags": [
"Issue Tracking",
"Patch"
],
"url": "https://github.com/AcademySoftwareFoundation/OpenImageIO/pull/5295"
},
{
"source": "security-advisories@github.com",
"tags": [
"Release Notes"
],
"url": "https://github.com/AcademySoftwareFoundation/OpenImageIO/releases/tag/v3.0.21.0"
},
{
"source": "security-advisories@github.com",
"tags": [
"Release Notes"
],
"url": "https://github.com/AcademySoftwareFoundation/OpenImageIO/releases/tag/v3.1.16.0"
},
{
"source": "security-advisories@github.com",
"tags": [
"Exploit",
"Mitigation",
"Vendor Advisory"
],
"url": "https://github.com/AcademySoftwareFoundation/OpenImageIO/security/advisories/GHSA-xh5r-whph-qmc5"
}
],
"sourceIdentifier": "security-advisories@github.com",
"vulnStatus": "Analyzed",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-122"
},
{
"lang": "en",
"value": "CWE-787"
}
],
"source": "security-advisories@github.com",
"type": "Secondary"
}
]
}
},
"redhat_vex": {
"current_release_date": "2026-09-23T09:01:50+00:00",
"cve": "CVE-2026-63422",
"id": "CVE-2026-63422",
"initial_release_date": "2026-09-18T15:37:57.906000+00:00",
"product_status:known_not_affected": "1",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "OpenImageIO: OpenImageIO: Heap out-of-bounds write can lead to arbitrary code execution",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-63422.json",
"version": "3"
},
"vulnrichment": {
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-63422",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-09-18T19:24:31.356177Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-09-18T19:24:32.622Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "OpenImageIO",
"vendor": "AcademySoftwareFoundation",
"versions": [
{
"status": "affected",
"version": "\u003c 3.0.21.0"
},
{
"status": "affected",
"version": "\u003e= 3.1.0.0, \u003c 3.1.16.0"
},
{
"status": "affected",
"version": "\u003e= 3.2.0.0-dev, \u003c 3.2.0.3-beta1"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "OpenImageIO is a toolset for reading, writing, and manipulating image files of any image file format relevant to VFX / animation. Prior to 3.0.21.0, 3.1.16.0, and 3.2.0.3-beta1, A valid tiled openexr image whose width is not a multiple of its tile width can trigger an overflow when a caller reads a partial edge-tile rectangle. openexrinput::read_native_tiles() copies each row into the caller buffer using the padded whole-tile scanline_stride rather than user_scanline_bytes for the requested rectangle, resulting in a heap out-of-bounds write and memory corruption. The affected implementation is identified by src/openexr.imageio/exrinput.cpp, OpenEXRInput::read_native_tiles(), partial edge tile, user_scanline_bytes, and scanline_stride, which define the relevant source path, functions, state, and trigger. This issue is fixed in versions 3.0.21.0, 3.1.16.0, and 3.2.0.3-beta1."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 7.8,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"version": "3.1"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-122",
"description": "CWE-122: Heap-based Buffer Overflow",
"lang": "en",
"type": "CWE"
}
]
},
{
"descriptions": [
{
"cweId": "CWE-787",
"description": "CWE-787: Out-of-bounds Write",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-09-18T15:37:57.906Z",
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M"
},
"references": [
{
"name": "https://github.com/AcademySoftwareFoundation/OpenImageIO/security/advisories/GHSA-xh5r-whph-qmc5",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/AcademySoftwareFoundation/OpenImageIO/security/advisories/GHSA-xh5r-whph-qmc5"
},
{
"name": "https://github.com/AcademySoftwareFoundation/OpenImageIO/pull/5295",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/AcademySoftwareFoundation/OpenImageIO/pull/5295"
},
{
"name": "https://github.com/AcademySoftwareFoundation/OpenImageIO/commit/7303134f13b0f9dc738b8ecabecd8c9f90cbd4c9",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/AcademySoftwareFoundation/OpenImageIO/commit/7303134f13b0f9dc738b8ecabecd8c9f90cbd4c9"
},
{
"name": "https://github.com/AcademySoftwareFoundation/OpenImageIO/releases/tag/v3.0.21.0",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/AcademySoftwareFoundation/OpenImageIO/releases/tag/v3.0.21.0"
},
{
"name": "https://github.com/AcademySoftwareFoundation/OpenImageIO/releases/tag/v3.1.16.0",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/AcademySoftwareFoundation/OpenImageIO/releases/tag/v3.1.16.0"
}
],
"source": {
"advisory": "GHSA-xh5r-whph-qmc5",
"discovery": "UNKNOWN"
},
"title": "OpenImageIO OpenEXR plugin partial edge tile heap out-of-bounds write"
}
},
"cveMetadata": {
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"assignerShortName": "GitHub_M",
"cveId": "CVE-2026-63422",
"datePublished": "2026-09-18T15:37:57.906Z",
"dateReserved": "2026-07-16T19:20:28.988Z",
"dateUpdated": "2026-09-21T20:50:51.258Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
}
}
Loading…
Loading…
Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Loading…
Loading…
The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
Loading…
Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
Loading…