github - ghsa-mgc9-26px-4hjp

GHSA-MGC9-26PX-4HJP

Vulnerability from github – Published: 2025-12-01 18:30 – Updated: 2025-12-01 18:30

Details

Heap-based Buffer Overflow, Out-of-bounds Read vulnerability in Avast Antivirus on MacOS when scanning a malformed file may allow Local Execution of Code or Denial-of-Service of the anitvirus engine process.This issue affects Antivirus: from 8.3.70.94 before 8.3.70.98.

Severity ?

9.0 (Critical)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2025-8351"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-122"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-12-01T16:15:57Z",
    "severity": "CRITICAL"
  },
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  "id": "GHSA-mgc9-26px-4hjp",
  "modified": "2025-12-01T18:30:38Z",
  "published": "2025-12-01T18:30:38Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-8351"
    },
    {
      "type": "WEB",
      "url": "https://www.gendigital.com/us/en/contact-us/security-advisories"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
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      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2025-8351 (GCVE-0-2025-8351)

Vulnerability from cvelistv5 – Published: 2025-12-01 15:51 – Updated: 2025-12-01 15:59

Summary

Severity ?

9 (Critical)


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

CWE

CWE-122 - Heap-based Buffer Overflow
CWE-125 - Out-of-bounds Read

Assigner

NLOK

References

URL

Tags

https://www.gendigital.com/us/en/contact-us/secur…

Impacted products

	Vendor	Product	Version
	Avast	Antivirus	Affected: 8.3.70.94 , < 8.3.70.98 (custom)

Credits

Mike Zhang

Show details on NVD website

JSON

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              "content": {
                "id": "CVE-2025-8351",
                "options": [
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                  },
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                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-12-01T15:57:24.184526Z",
                "version": "2.0.3"
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Sightings

Author	Source	Type	Date

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.

Action not permitted

GHSA-MGC9-26PX-4HJP

CVE-2025-8351 (GCVE-0-2025-8351)

Tags

Sightings

Nomenclature