[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fiBUyLaWsyZpgzKFoaxilgwpicBNrqaEcPViN9T7wC6A":3,"g5a-risk:CVE-2020-25855":119},{"success":4,"data":5,"meta":117},true,{"cveId":6,"title":7,"description":8,"shortDescription":9,"publishedDate":10,"lastModified":11,"cvssScore":12,"cvssVector":13,"cvssMetrics":14,"epssScore":38,"epssPercentile":25,"epssTimeSeries":39,"severity":40,"affectedProducts":41,"affectedProductsCount":51,"references":52,"referencesCount":59,"weaknesses":60,"weaknessesCount":51,"isActivelyExploited":74,"cisaInfo":25,"otxData":25,"relatedBlogPosts":75,"seoMetadata":76,"configurations":101,"relatedVendorCves":115,"notableEvents":116},"CVE-2020-25855","What is CVE-2020-25855?","The function AES_UnWRAP() in the Realtek RTL8195A Wi-Fi Module prior to versions released in April 2020 (up to and excluding 2.08) does not validate the size parameter for a memcpy() operation, resulting in a stack buffer overflow which can be exploited for remote code execution or denial of service. An attacker can impersonate an Access Point and attack a vulnerable Wi-Fi client, by injecting a crafted packet into the WPA2 handshake. The attacker needs to know the network's PSK in order to exploit this.","The function AES_UnWRAP() in the Realtek RTL8195A Wi-Fi Module prior to versions released in April 2020 (up to and excluding 2.08) does not validate the size...","2021-02-03T17:15:15.043","2021-02-08T18:50:40.42",8.1,"CVSS:3.1\u002FAV:N\u002FAC:H\u002FPR:N\u002FUI:N\u002FS:U\u002FC:H\u002FI:H\u002FA:H",{"CVSSMetricV31":15,"CVSSMetricV30":25,"CVSSMetricV2":28,"CVSSMetricV40":25},[16],{"Source":17,"Type":18,"CVSSData":19,"ExploitabilityScore":26,"ImpactScore":27},"nvd@nist.gov","Primary",{"Version":20,"VectorString":13,"AttackVector":21,"AttackComplexity":22,"PrivilegesRequired":23,"UserInteraction":23,"Scope":24,"ConfidentialityImpact":22,"IntegrityImpact":22,"AvailabilityImpact":22,"BaseScore":12,"BaseSeverity":22,"ExploitCodeMaturity":25,"RemediationLevel":25,"ReportConfidence":25,"TemporalScore":25,"TemporalSeverity":25,"ConfidentialityRequirement":25,"IntegrityRequirement":25,"AvailabilityRequirement":22,"ModifiedAttackVector":25,"ModifiedAttackComplexity":25,"ModifiedPrivilegesRequired":25,"ModifiedUserInteraction":25,"ModifiedScope":25,"ModifiedConfidentialityImpact":25,"ModifiedIntegrityImpact":25,"ModifiedAvailabilityImpact":25,"EnvironmentalScore":25,"EnvironmentalSeverity":25},"3.1","NETWORK","HIGH","NONE","UNCHANGED",null,2.2,5.9,[29],{"Source":17,"Type":18,"CVSSData":30,"BaseSeverity":33,"ExploitabilityScore":36,"ImpactScore":37,"ACInsufInfo":25,"ObtainAllPrivilege":25,"ObtainUserPrivilege":25,"ObtainOtherPrivilege":25,"UserInteractionRequired":25},{"Version":31,"VectorString":32,"AccessVector":21,"AccessComplexity":33,"Authentication":23,"ConfidentialityImpact":34,"IntegrityImpact":34,"AvailabilityImpact":34,"BaseScore":35,"BaseSeverity":25,"Exploitability":25,"RemediationLevel":25,"ReportConfidence":25,"TemporalScore":25,"CollateralDamagePotential":25,"TargetDistribution":25,"ConfidentialityRequirement":25,"IntegrityRequirement":25,"AvailabilityRequirement":25,"EnvironmentalScore":25},"2.0","AV:N\u002FAC:M\u002FAu:N\u002FC:P\u002FI:P\u002FA:P","MEDIUM","PARTIAL",6.8,8.6,6.4,0.02636,[38,38,38,38,38,38,38],"High",[42,47],{"vendor":43,"product":44,"version":45,"criteria":46,"vulnerable":4},"realtek","rtl8195a_firmware","*","cpe:2.3:o:realtek:rtl8195a_firmware:*:*:*:*:*:*:*:*",{"vendor":43,"product":48,"version":49,"criteria":50,"vulnerable":4},"rtl8195a","-","cpe:2.3:h:realtek:rtl8195a:-:*:*:*:*:*:*:*",2,[53],{"url":54,"source":55,"tags":56},"https:\u002F\u002Fwww.vdoo.com\u002Fblog\u002Frealtek-rtl8195a-vulnerabilities-discovered\u002F","Vdoo",[57,58],"Exploit","Third Party Advisory",1,[61,69],{"id":62,"name":63,"description":64,"extendedDescription":65,"status":66,"abstraction":67,"structure":68},"CWE-787","Out-of-bounds Write","The product writes data past the end, or before the beginning, of the intended buffer.","","Draft","Base","Simple",{"id":70,"name":71,"description":72,"extendedDescription":65,"status":66,"abstraction":73,"structure":68},"CWE-121","Stack-based Buffer Overflow","A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function).","Variant",false,[],{"title":77,"metaDescription":78,"keywords":79,"canonicalUrl":80,"structuredData":81},"What is CVE-2020-25855? Vulnerability Analysis | Security Advisory | Precursor Intelligence","Comprehensive analysis of CVE-2020-25855, a high severity cyber security vulnerability from 2021. The function AES_UnWRAP() in the Realtek RTL8195A Wi-Fi Mod...","CVE-2020-25855, CVE-2020-25855 vulnerability, CVE-2020-25855 security, high severity vulnerability, cybersecurity, vulnerability analysis, security advisory, CVE database, threat intelligence, security research, vulnerability assessment, cyber threats, 2021, CVSS score, exploit, patch, remediation, realtek security, rtl8195a_firmware vulnerability, rtl8195a vulnerability","\u002Fwhat-is\u002Fcve-2020-25855",{"@context":82,"@type":83,"headline":77,"description":78,"datePublished":10,"dateModified":11,"author":84,"publisher":88,"about":92,"mainEntityOfPage":96,"articleSection":99,"keywords":100},"https:\u002F\u002Fschema.org","TechArticle",{"@type":85,"name":86,"url":87},"Organization","Precursor Intelligence","https:\u002F\u002Fprecursorintelligence.com",{"@type":85,"name":86,"url":87,"logo":89},{"@type":90,"url":91},"ImageObject","https:\u002F\u002Fprecursorintelligence.com\u002Fimg\u002Flogos\u002Feplogo.png",{"@type":93,"name":6,"description":94,"additionalType":95},"Thing","Cybersecurity Vulnerability","https:\u002F\u002Fschema.org\u002FSoftwareBug",{"@type":97,"@id":98},"WebPage","https:\u002F\u002Fprecursorintelligence.com\u002Fwhat-is\u002Fcve-2020-25855","Cybersecurity","CVE-2020-25855, CVE-2020-25855 vulnerability, CVE-2020-25855 security, high severity vulnerability, cybersecurity, vulnerability analysis, security advisory, CVE database, threat intelligence, security research",[102],{"Operator":103,"Negate":25,"Nodes":104},"AND",[105,111],{"Operator":106,"Negate":25,"CPEMatch":107},"OR",[108],{"Vulnerable":4,"Criteria":46,"MatchCriteriaID":109,"VersionStartExcluding":25,"VersionStartIncluding":25,"VersionEndExcluding":110,"VersionEndIncluding":25},"24D4DC02-E833-483C-885F-9E168E5F8A4C","2.08",{"Operator":106,"Negate":25,"CPEMatch":112},[113],{"Vulnerable":25,"Criteria":50,"MatchCriteriaID":114,"VersionStartExcluding":25,"VersionStartIncluding":25,"VersionEndExcluding":25,"VersionEndIncluding":25},"62A37D39-5134-4AFE-9F59-C8C36A113B04",[],[],{"lastModified":11,"cacheTime":118,"version":31},1792270003737,{"score":120,"band":121,"action":122,"scoredAt":123},55,"Medium","Plan remediation","2026-10-16T06:50:24.012763+00:00"]