{"id":"CVE-2025-7011","state":"PUBLISHED","title":"Avast antivirus heap OOB when scanning a malformed zip file","description":"Heap out-of-bounds read vulnerability in Avast Antivirus when scanning a malformed zip file containing XML may allow Local Execution of Code or Denial-of-Service of the antivirus process.\n\nThis issue affects Avast Antivirus, AVG Antivirus, Norton Antivirus, Avast One, and Avast Business Antivirus on Windows, macOS, and Linux for virus definition builds from 25020100 before 25021208.\n\n\n\nThe affected scanning logic is delivered through a shared Gen Digital virus definition update stream. The same stream feeds the consumer antivirus products listed in this advisory and other Gen Digital products that embed the same engine. Mitigation flows through this update channel; installations at or above the listed build are not vulnerable regardless of which product consumes the stream.","publishedAt":"2026-06-12T22:12:37.444Z","updatedAt":"2026-06-15T16:02:44.849Z","severity":{"score":7.8,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","source":"GEN"},"assigner":"GEN","products":["Gen Digital Avast Antivirus","Gen Digital AVG Antivirus","Gen Digital Norton Antivirus","Gen Digital Avast One","Gen Digital Avast Business Antivirus"],"affected":[{"vendor":"Gen Digital","product":"Avast Antivirus","defaultStatus":"affected","versions":[{"version":"25020100","status":"affected","lessThan":"25021208","versionType":"custom"}],"platforms":["Windows","macOS","Linux"]},{"vendor":"Gen Digital","product":"AVG Antivirus","defaultStatus":"affected","versions":[{"version":"25020100","status":"affected","lessThan":"25021208","versionType":"custom"}],"platforms":["Windows","macOS","Linux"]},{"vendor":"Gen Digital","product":"Norton Antivirus","defaultStatus":"affected","versions":[{"version":"25020100","status":"affected","lessThan":"25021208","versionType":"custom"}],"platforms":["Windows","macOS","Linux"]},{"vendor":"Gen Digital","product":"Avast One","defaultStatus":"affected","versions":[{"version":"25020100","status":"affected","lessThan":"25021208","versionType":"custom"}],"platforms":["Windows","macOS","Linux"]},{"vendor":"Gen Digital","product":"Avast Business Antivirus","defaultStatus":"affected","versions":[{"version":"25020100","status":"affected","lessThan":"25021208","versionType":"custom"}],"platforms":["Windows","macOS","Linux"]}],"references":["https://www.gendigital.com/us/en/contact-us/security-advisories/"],"weaknesses":["CWE-125"],"ingestedAt":"2026-10-29T20:10:04.440Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2025/7xxx/CVE-2025-7011.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2025-7011","state":"PUBLISHED","datePublished":"2026-06-12T22:12:37.444Z","dateUpdated":"2026-06-15T16:02:44.849Z","assignerShortName":"GEN","assignerOrgId":"dbd8429d-f261-4b1e-94cc-ae3132817e2e","dateReserved":"2025-07-02T08:27:37.717Z"},"containers":{"cna":{"title":"Avast antivirus heap OOB when scanning a malformed zip file","descriptions":[{"lang":"en","value":"Heap out-of-bounds read vulnerability in Avast Antivirus when scanning a malformed zip file containing XML may allow Local Execution of Code or Denial-of-Service of the antivirus process.\n\nThis issue affects Avast Antivirus, AVG Antivirus, Norton Antivirus, Avast One, and Avast Business Antivirus on Windows, macOS, and Linux for virus definition builds from 25020100 before 25021208.\n\n\n\nThe affected scanning logic is delivered through a shared Gen Digital virus definition update stream. The same stream feeds the consumer antivirus products listed in this advisory and other Gen Digital products that embed the same engine. Mitigation flows through this update channel; installations at or above the listed build are not vulnerable regardless of which product consumes the stream."}],"affected":[{"vendor":"Gen Digital","product":"Avast Antivirus","defaultStatus":"affected","versions":[{"version":"25020100","status":"affected","lessThan":"25021208","versionType":"custom"}],"platforms":["Windows","macOS","Linux"]},{"vendor":"Gen Digital","product":"AVG Antivirus","defaultStatus":"affected","versions":[{"version":"25020100","status":"affected","lessThan":"25021208","versionType":"custom"}],"platforms":["Windows","macOS","Linux"]},{"vendor":"Gen Digital","product":"Norton Antivirus","defaultStatus":"affected","versions":[{"version":"25020100","status":"affected","lessThan":"25021208","versionType":"custom"}],"platforms":["Windows","macOS","Linux"]},{"vendor":"Gen Digital","product":"Avast One","defaultStatus":"affected","versions":[{"version":"25020100","status":"affected","lessThan":"25021208","versionType":"custom"}],"platforms":["Windows","macOS","Linux"]},{"vendor":"Gen Digital","product":"Avast Business Antivirus","defaultStatus":"affected","versions":[{"version":"25020100","status":"affected","lessThan":"25021208","versionType":"custom"}],"platforms":["Windows","macOS","Linux"]}],"references":[{"url":"https://www.gendigital.com/us/en/contact-us/security-advisories/"}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV3_1":{"version":"3.1","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"REQUIRED","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH","baseSeverity":"HIGH","baseScore":7.8,"vectorString":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-125","lang":"en","description":"CWE-125 Out-of-bounds Read","type":"CWE"}]}],"providerMetadata":{"shortName":"GEN","orgId":"dbd8429d-f261-4b1e-94cc-ae3132817e2e","dateUpdated":"2026-06-12T22:12:37.444Z"},"datePublic":"2025-05-26T11:28:00.000Z","impacts":[{"capecId":"CAPEC-549","descriptions":[{"lang":"en","value":"CAPEC-549 Local Execution of Code"}]}],"solutions":[{"lang":"en","value":"Install virus definitions VPS 25021208 or any later virus-definition update. All builds at or above VPS 25021208 include the fix; staying current on definitions is required.","supportingMedia":[{"type":"text/html","base64":false,"value":"Install virus definitions <strong>VPS 25021208</strong> or <strong>any later</strong> virus-definition update. All builds at or above VPS 25021208 include the fix; staying current on definitions is required."}]}],"credits":[{"lang":"en","value":"Mike Zhang, an independent security researcher","type":"reporter"}],"source":{"discovery":"EXTERNAL"},"x_generator":{"engine":"Vulnogram 1.0.2"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-06-15T16:02:32.681415Z","id":"CVE-2025-7011","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-06-15T16:02:44.849Z"}}]}}}