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        "cveId": "CVE-2026-27749",
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        "state": "PUBLISHED",
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        "dateReserved": "2026-02-23T21:38:48.842Z",
        "datePublished": "2026-03-05T14:15:35.580Z",
        "dateUpdated": "2026-04-01T14:38:16.632Z"
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                "dateUpdated": "2026-04-01T14:38:16.632Z"
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            "title": "Avira Internet Security System Speedup Insecure Deserialization",
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                            "lang": "en",
                            "cweId": "CWE-502",
                            "description": "CWE-502 Deserialization of Untrusted Data",
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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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                            "value": "Untrusted serialized input may lead to execution of arbitrary code in the security context of the privileged optimizer component."
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                    "vendor": "Gen Digital Inc.",
                    "product": "Avira Internet Security",
                    "platforms": [
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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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            "references": [
                {
                    "url": "https://support.avira.com/hc/en-us/articles/360010656158-Current-Avira-versions",
                    "tags": [
                        "release-notes"
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                },
                {
                    "url": "https://www.avira.com/en/internet-security",
                    "tags": [
                        "product"
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                {
                    "url": "https://www.gendigital.com/us/en/contact-us/security-advisories/",
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