CVE-2025-38680 (GCVE-0-2025-38680)
Vulnerability from cvelistv5 – Published: 2025-09-04 15:32 – Updated: 2026-05-12 12:05
VLAI
EPSS
VEX
Title
media: uvcvideo: Fix 1-byte out-of-bounds read in uvc_parse_format()
Summary
In the Linux kernel, the following vulnerability has been resolved:
media: uvcvideo: Fix 1-byte out-of-bounds read in uvc_parse_format()
The buffer length check before calling uvc_parse_format() only ensured
that the buffer has at least 3 bytes (buflen > 2), buf the function
accesses buffer[3], requiring at least 4 bytes.
This can lead to an out-of-bounds read if the buffer has exactly 3 bytes.
Fix it by checking that the buffer has at least 4 bytes in
uvc_parse_format().
Severity
7.1 (High)
Assigner
References
12 references
Impacted products
3 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Linux | Linux |
Affected:
c0efd232929c2cd87238de2cccdaf4e845be5b0c , < 9ad554217c9b945031c73df4e8176a475e2dea57
(git)
Affected: c0efd232929c2cd87238de2cccdaf4e845be5b0c , < 1e269581b3aa5962fdc52757ab40da286168c087 (git) Affected: c0efd232929c2cd87238de2cccdaf4e845be5b0c , < 8343f3fe0b755925f83d60b05e92bf4396879758 (git) Affected: c0efd232929c2cd87238de2cccdaf4e845be5b0c , < ffdd82182953df643aa63d999b6f1653d0c93778 (git) Affected: c0efd232929c2cd87238de2cccdaf4e845be5b0c , < a97e062e4ff3dab84a2f1eb811e9eddc6699e2a9 (git) Affected: c0efd232929c2cd87238de2cccdaf4e845be5b0c , < cac702a439050df65272c49184aef7975fe3eff2 (git) Affected: c0efd232929c2cd87238de2cccdaf4e845be5b0c , < 424980d33b3f816485513e538610168b03fab9f1 (git) Affected: c0efd232929c2cd87238de2cccdaf4e845be5b0c , < 6d4a7c0b296162354b6fc759a1475b9d57ddfaa6 (git) Affected: c0efd232929c2cd87238de2cccdaf4e845be5b0c , < 782b6a718651eda3478b1824b37a8b3185d2740c (git) |
guessed | |
| Linux | Linux |
Affected:
2.6.26
Unaffected: 0 , < 2.6.26 (semver) Unaffected: 5.4.297 , ≤ 5.4.* (semver) Unaffected: 5.10.241 , ≤ 5.10.* (semver) Unaffected: 5.15.190 , ≤ 5.15.* (semver) Unaffected: 6.1.149 , ≤ 6.1.* (semver) Unaffected: 6.6.103 , ≤ 6.6.* (semver) Unaffected: 6.12.43 , ≤ 6.12.* (semver) Unaffected: 6.15.11 , ≤ 6.15.* (semver) Unaffected: 6.16.2 , ≤ 6.16.* (semver) Unaffected: 6.17 , ≤ * (original_commit_for_fix) |
guessed | |
| Siemens | SIMATIC CN 4100 |
Affected:
0 , < V5.0
(custom)
|
guessed |
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"value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nmedia: uvcvideo: Correcci\u00f3n de lectura fuera de l\u00edmites de 1 byte en uvc_parse_format()\n\nLa comprobaci\u00f3n de la longitud del b\u00fafer antes de llamar a uvc_parse_format() solo aseguraba que el b\u00fafer tuviera al menos 3 bytes (buflen \u003e 2), pero la funci\u00f3n accede a buffer[3], requiriendo al menos 4 bytes.\n\nEsto puede llevar a una lectura fuera de l\u00edmites si el b\u00fafer tiene exactamente 3 bytes.\n\nSe soluciona comprobando que el b\u00fafer tenga al menos 4 bytes en uvc_parse_format()."
}
],
"id": "CVE-2025-38680",
"lastModified": "2026-10-19T21:10:00.160",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 7.1,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H",
"version": "3.1"
},
"exploitabilityScore": 1.8,
"impactScore": 5.2,
"source": "nvd@nist.gov",
"type": "Primary"
}
]
},
"published": "2025-09-04T16:15:35.553",
"references": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/1e269581b3aa5962fdc52757ab40da286168c087"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/424980d33b3f816485513e538610168b03fab9f1"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/6d4a7c0b296162354b6fc759a1475b9d57ddfaa6"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/782b6a718651eda3478b1824b37a8b3185d2740c"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/8343f3fe0b755925f83d60b05e92bf4396879758"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/9ad554217c9b945031c73df4e8176a475e2dea57"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/a97e062e4ff3dab84a2f1eb811e9eddc6699e2a9"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/cac702a439050df65272c49184aef7975fe3eff2"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/ffdd82182953df643aa63d999b6f1653d0c93778"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Third Party Advisory"
],
"url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Third Party Advisory"
],
"url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html"
},
{
"source": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e",
"url": "https://cert-portal.siemens.com/productcert/html/ssa-032379.html"
}
],
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-125"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
},
"redhat_vex": {
"aggregate_severity": "Moderate",
"current_release_date": "2026-06-30T01:14:39+00:00",
"cve": "CVE-2025-38680",
"id": "CVE-2025-38680",
"initial_release_date": "2025-09-04T00:00:00+00:00",
"product_status:known_affected": "260",
"product_status:known_not_affected": "14",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "kernel: media: uvcvideo: Fix 1-byte out-of-bounds read in uvc_parse_format()",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-38680.json",
"version": "3"
}
}
}
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Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.
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.
Vulnerability timeline
Sightings and recorded dates, grouped by day · UTC
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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.
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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.