198 lines
8.8 KiB
JSON
198 lines
8.8 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"cveMetadata": {
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"cveId": "CVE-2026-27749",
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"assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
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"state": "PUBLISHED",
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"assignerShortName": "VulnCheck",
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"dateReserved": "2026-02-23T21:38:48.842Z",
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"datePublished": "2026-03-05T14:15:35.580Z",
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"dateUpdated": "2026-04-01T14:38:16.632Z"
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},
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"containers": {
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"cna": {
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"providerMetadata": {
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"orgId": "dbd8429d-f261-4b1e-94cc-ae3132817e2e",
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"shortName": "GEN",
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"dateUpdated": "2026-04-01T14:38:16.632Z"
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},
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"title": "Avira Internet Security System Speedup Insecure Deserialization",
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"problemTypes": [
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{
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"descriptions": [
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{
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"lang": "en",
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"cweId": "CWE-502",
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"description": "CWE-502 Deserialization of Untrusted Data",
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"type": "CWE"
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}
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]
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}
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],
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"impacts": [
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{
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"descriptions": [
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{
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"lang": "en",
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"value": "A local user can influence a privileged System Speedup process to deserialize untrusted data, potentially achieving privilege escalation to SYSTEM."
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}
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]
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},
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{
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"descriptions": [
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{
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"lang": "en",
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"value": "Untrusted serialized input may lead to execution of arbitrary code in the security context of the privileged optimizer component."
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}
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]
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}
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],
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"affected": [
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{
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"vendor": "Gen Digital Inc.",
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"product": "Avira Internet Security",
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"platforms": [
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"Windows"
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],
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"versions": [
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{
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"status": "affected",
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"version": "0",
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"lessThanOrEqual": "1.1.109.1990",
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"versionType": "semver"
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},
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{
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"status": "unaffected",
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"version": "1.1.114.3113",
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"versionType": "semver"
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}
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],
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"defaultStatus": "unaffected"
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}
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],
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"cpeApplicability": [
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{
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"nodes": [
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{
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"cpeMatch": [
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{
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"criteria": "cpe:2.3:a:avira:avira_internet_security_suite:*:*:*:*:*:windows:*:*",
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"versionEndIncluding": "1.1.109.1990",
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"vulnerable": true
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}
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],
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"negate": false,
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"operator": "OR"
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}
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]
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}
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],
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"descriptions": [
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{
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"lang": "en",
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"value": "Avira Internet Security contains a deserialization of untrusted data vulnerability in the System Speedup component. The Avira.SystemSpeedup.RealTimeOptimizer.exe process, which runs with SYSTEM privileges, deserializes data from a file located in C:\\\\ProgramData using .NET BinaryFormatter without implementing input validation or deserialization safeguards. Because the file can be created or modified by a local user in default configurations, an attacker can supply a crafted serialized payload that is deserialized by the privileged process, resulting in arbitrary code execution as SYSTEM.",
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"supportingMedia": [
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{
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"type": "text/html",
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"base64": false,
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"value": "<p>Avira Internet Security contains a deserialization of untrusted data vulnerability in the System Speedup component. The Avira.SystemSpeedup.RealTimeOptimizer.exe process, which runs with SYSTEM privileges, deserializes data from a file located in C:\\\\ProgramData using .NET BinaryFormatter without implementing input validation or deserialization safeguards. Because the file can be created or modified by a local user in default configurations, an attacker can supply a crafted serialized payload that is deserialized by the privileged process, resulting in arbitrary code execution as SYSTEM.</p>"
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}
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]
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}
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],
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"references": [
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{
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"url": "https://support.avira.com/hc/en-us/articles/360010656158-Current-Avira-versions",
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"tags": [
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"release-notes"
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]
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},
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{
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"url": "https://www.avira.com/en/internet-security",
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"tags": [
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"product"
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]
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},
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{
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"url": "https://www.gendigital.com/us/en/contact-us/security-advisories/",
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"tags": [
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"vendor-advisory"
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]
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}
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],
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"metrics": [
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{
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"format": "CVSS",
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"scenarios": [
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{
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"lang": "en",
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"value": "GENERAL"
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}
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],
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"cvssV3_1": {
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"version": "3.1",
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"attackVector": "LOCAL",
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"attackComplexity": "LOW",
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"privilegesRequired": "LOW",
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"userInteraction": "NONE",
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"scope": "UNCHANGED",
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"confidentialityImpact": "HIGH",
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"integrityImpact": "HIGH",
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"availabilityImpact": "HIGH",
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"baseSeverity": "HIGH",
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"baseScore": 7.8,
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"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
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}
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}
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],
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"solutions": [
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{
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"lang": "en",
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"value": "Upgrade Avira Internet Security for Windows to version 1.1.114.3113 or later. Apply updates through the product's built-in updater or a fresh install from the vendor; see the release-notes reference in this record for current supported versions.",
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"supportingMedia": [
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{
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"type": "text/html",
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"base64": false,
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"value": "<p>Upgrade Avira Internet Security for Windows to version 1.1.114.3113 or later. Apply updates through the product's built-in updater or a fresh install from the vendor; see the release-notes reference in this record for current supported versions.</p>"
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}
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]
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}
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]
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},
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"adp": [
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{
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"metrics": [
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{
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"other": {
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"type": "ssvc",
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"content": {
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"timestamp": "2026-03-06T18:17:05.292085Z",
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"id": "CVE-2026-27749",
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"options": [
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{
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"Exploitation": "poc"
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},
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{
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"Automatable": "no"
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},
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{
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"Technical Impact": "total"
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}
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],
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"role": "CISA Coordinator",
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"version": "2.0.3"
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}
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}
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}
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],
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"title": "CISA ADP Vulnrichment",
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"providerMetadata": {
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"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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"shortName": "CISA-ADP",
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"dateUpdated": "2026-03-06T18:17:15.860Z"
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}
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}
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]
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},
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"dataVersion": "5.2"
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} |