Vulnerability-Lookup

CVE-2026-87961 (GCVE-0-2026-87961)

Vulnerability from cvelistv5 – Published: 2026-09-10 10:52 – Updated: 2026-09-10 14:56

Title

ESP32-audioI2S 3.4.4 through 4.0.0 Heap-based Out-of-Bounds Read via Shadowed Length Parameter in read_ID3_Header

Summary

ESP32-audioI2S versions 3.4.4 through 4.0.0 contain a heap-based out-of-bounds read vulnerability in the read_ID3_Header function due to a shadowed length parameter in ID3 synchronized-lyrics processing. Attackers can craft malicious MP3 files or HTTP audio streams with oversized frame size declarations to read past allocated buffer boundaries, causing device crashes or exposing adjacent heap memory.

Severity

7.1 (High)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N

7.1 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-10 14:22 UTC

CWE

CWE-125 - Out-of-bounds Read

Assigner

VulnCheck mitre root

References

8 references

URL	Tags
https://github.com/schreibfaul1/ESP32-audioI2S/is…	issue-tracking
https://github.com/schreibfaul1/ESP32-audioI2S/pu…	patchissue-tracking
https://github.com/schreibfaul1/ESP32-audioI2S/co…	patch
https://github.com/schreibfaul1/ESP32-audioI2S/bl…	technical-description
https://github.com/schreibfaul1/ESP32-audioI2S/bl…	technical-description
https://github.com/schreibfaul1/ESP32-audioI2S/bl…	technical-description
https://github.com/schreibfaul1/ESP32-audioI2S	product
https://www.vulncheck.com/advisories/esp32-audioi…	third-party-advisory

Impacted products

1 product

Vendor	Product	Version	CPE status
schreibfaul1	ESP32-audioI2S	Affected: 3.4.4 , ≤ 4.0.0 (semver)	guessed

Date Public

2026-08-09 00:00

Credits

Harsh Raj Singhania

Show details on NVD website

JSON

To clipboard

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FKIE_CVE-2026-87961

Vulnerability from fkie_nvd - Published: 2026-09-10 11:17 - Updated: 2026-09-10 15:53

Severity

7.1 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H

Summary

References

	URL	Tags
	disclosure@vulncheck.com	https://github.com/schreibfaul1/ESP32-audioI2S
	disclosure@vulncheck.com	https://github.com/schreibfaul1/ESP32-audioI2S/blob/490ff729eca344f06581f3e9bda9cfba948fd5a1/src/Audio.cpp#L2526-L2531
	disclosure@vulncheck.com	https://github.com/schreibfaul1/ESP32-audioI2S/blob/490ff729eca344f06581f3e9bda9cfba948fd5a1/src/Audio.cpp#L2629-L2635
	disclosure@vulncheck.com	https://github.com/schreibfaul1/ESP32-audioI2S/blob/f01ad7923dcf3355eeca7fb99bf8a4d9945e7478/src/Audio.cpp#L2270-L2276
	disclosure@vulncheck.com	https://github.com/schreibfaul1/ESP32-audioI2S/commit/4dc4614b9dab2de7b342d682b1c18b109d75b677
	disclosure@vulncheck.com	https://github.com/schreibfaul1/ESP32-audioI2S/issues/1380
	disclosure@vulncheck.com	https://github.com/schreibfaul1/ESP32-audioI2S/pull/1381
	disclosure@vulncheck.com	https://www.vulncheck.com/advisories/esp32-audioi2s-3.4.4-through-4.0.0-heap-based-out-of-bounds-read-via-shadowed-length-parameter-in-read-id3-header

Impacted products

	Vendor	Product	Version

JSON

To clipboard

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    }
  ],
  "id": "CVE-2026-87961",
  "lastModified": "2026-09-10T15:53:23.707",
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        "exploitabilityScore": 2.8,
        "impactScore": 4.2,
        "source": "disclosure@vulncheck.com",
        "type": "Secondary"
      }
    ],
    "cvssMetricV40": [
      {
        "cvssData": {
          "Automatable": "NOT_DEFINED",
          "Recovery": "NOT_DEFINED",
          "Safety": "NOT_DEFINED",
          "attackComplexity": "LOW",
          "attackRequirements": "NONE",
          "attackVector": "NETWORK",
          "availabilityRequirement": "NOT_DEFINED",
          "baseScore": 7.1,
          "baseSeverity": "HIGH",
          "confidentialityRequirement": "NOT_DEFINED",
          "exploitMaturity": "NOT_DEFINED",
          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "privilegesRequired": "NONE",
          "providerUrgency": "NOT_DEFINED",
          "subAvailabilityImpact": "NONE",
          "subConfidentialityImpact": "NONE",
          "subIntegrityImpact": "NONE",
          "userInteraction": "PASSIVE",
          "valueDensity": "NOT_DEFINED",
          "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
          "version": "4.0",
          "vulnAvailabilityImpact": "HIGH",
          "vulnConfidentialityImpact": "LOW",
          "vulnIntegrityImpact": "NONE",
          "vulnerabilityResponseEffort": "NOT_DEFINED"
        },
        "source": "disclosure@vulncheck.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-87961",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-09-10T14:22:26.738591Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-09-10T11:17:07.613",
  "references": [
    {
      "source": "disclosure@vulncheck.com",
      "url": "https://github.com/schreibfaul1/ESP32-audioI2S"
    },
    {
      "source": "disclosure@vulncheck.com",
      "url": "https://github.com/schreibfaul1/ESP32-audioI2S/blob/490ff729eca344f06581f3e9bda9cfba948fd5a1/src/Audio.cpp#L2526-L2531"
    },
    {
      "source": "disclosure@vulncheck.com",
      "url": "https://github.com/schreibfaul1/ESP32-audioI2S/blob/490ff729eca344f06581f3e9bda9cfba948fd5a1/src/Audio.cpp#L2629-L2635"
    },
    {
      "source": "disclosure@vulncheck.com",
      "url": "https://github.com/schreibfaul1/ESP32-audioI2S/blob/f01ad7923dcf3355eeca7fb99bf8a4d9945e7478/src/Audio.cpp#L2270-L2276"
    },
    {
      "source": "disclosure@vulncheck.com",
      "url": "https://github.com/schreibfaul1/ESP32-audioI2S/commit/4dc4614b9dab2de7b342d682b1c18b109d75b677"
    },
    {
      "source": "disclosure@vulncheck.com",
      "url": "https://github.com/schreibfaul1/ESP32-audioI2S/issues/1380"
    },
    {
      "source": "disclosure@vulncheck.com",
      "url": "https://github.com/schreibfaul1/ESP32-audioI2S/pull/1381"
    },
    {
      "source": "disclosure@vulncheck.com",
      "url": "https://www.vulncheck.com/advisories/esp32-audioi2s-3.4.4-through-4.0.0-heap-based-out-of-bounds-read-via-shadowed-length-parameter-in-read-id3-header"
    }
  ],
  "sourceIdentifier": "disclosure@vulncheck.com",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-125"
        }
      ],
      "source": "disclosure@vulncheck.com",
      "type": "Secondary"
    }
  ]
}

GHSA-P79F-7V67-J5F7

Vulnerability from github – Published: 2026-09-10 12:31 – Updated: 2026-09-10 12:31

Details

Severity

7.1 (High)


                  
                    CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H

7.1 (High)


                  
                    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-87961"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-125"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-09-10T11:17:07Z",
    "severity": "HIGH"
  },
  "details": "ESP32-audioI2S versions 3.4.4 through 4.0.0 contain a heap-based out-of-bounds read vulnerability in the read_ID3_Header function due to a shadowed length parameter in ID3 synchronized-lyrics processing. Attackers can craft malicious MP3 files or HTTP audio streams with oversized frame size declarations to read past allocated buffer boundaries, causing device crashes or exposing adjacent heap memory.",
  "id": "GHSA-p79f-7v67-j5f7",
  "modified": "2026-09-10T12:31:20Z",
  "published": "2026-09-10T12:31:20Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-87961"
    },
    {
      "type": "WEB",
      "url": "https://github.com/schreibfaul1/ESP32-audioI2S/issues/1380"
    },
    {
      "type": "WEB",
      "url": "https://github.com/schreibfaul1/ESP32-audioI2S/pull/1381"
    },
    {
      "type": "WEB",
      "url": "https://github.com/schreibfaul1/ESP32-audioI2S/commit/4dc4614b9dab2de7b342d682b1c18b109d75b677"
    },
    {
      "type": "WEB",
      "url": "https://github.com/schreibfaul1/ESP32-audioI2S"
    },
    {
      "type": "WEB",
      "url": "https://github.com/schreibfaul1/ESP32-audioI2S/blob/490ff729eca344f06581f3e9bda9cfba948fd5a1/src/Audio.cpp#L2526-L2531"
    },
    {
      "type": "WEB",
      "url": "https://github.com/schreibfaul1/ESP32-audioI2S/blob/490ff729eca344f06581f3e9bda9cfba948fd5a1/src/Audio.cpp#L2629-L2635"
    },
    {
      "type": "WEB",
      "url": "https://github.com/schreibfaul1/ESP32-audioI2S/blob/f01ad7923dcf3355eeca7fb99bf8a4d9945e7478/src/Audio.cpp#L2270-L2276"
    },
    {
      "type": "WEB",
      "url": "https://www.vulncheck.com/advisories/esp32-audioi2s-3.4.4-through-4.0.0-heap-based-out-of-bounds-read-via-shadowed-length-parameter-in-read-id3-header"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
      "type": "CVSS_V4"
    }
  ]
}

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.

Detection rules are retrieved from Rulezet.

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.

Action not permitted

CVE-2026-87961 (GCVE-0-2026-87961)

FKIE_CVE-2026-87961

GHSA-P79F-7V67-J5F7

Tags

Sightings

Nomenclature