[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fLdc436lGL5BRPxivrFNaHmSUTznmI49sjgsXeJ8AGiY":3,"g5a-risk:CVE-2021-1527":124},{"success":4,"data":5,"meta":122},true,{"cveId":6,"title":7,"description":8,"shortDescription":9,"publishedDate":10,"lastModified":11,"cvssScore":12,"cvssVector":13,"cvssMetrics":14,"epssScore":48,"epssPercentile":28,"epssTimeSeries":49,"severity":50,"affectedProducts":51,"affectedProductsCount":57,"references":58,"referencesCount":57,"weaknesses":64,"weaknessesCount":80,"isActivelyExploited":81,"cisaInfo":28,"otxData":28,"relatedBlogPosts":82,"seoMetadata":83,"configurations":108,"relatedVendorCves":120,"notableEvents":121},"CVE-2021-1527","What is CVE-2021-1527?","A vulnerability in Cisco Webex Player for Windows and MacOS could allow an attacker to cause the affected software to terminate or to gain access to memory state information that is related to the vulnerable application. The vulnerability is due to insufficient validation of values in Webex recording files that are stored in Webex Recording Format (WRF). An attacker could exploit this vulnerability by sending a malicious WRF file to a user as a link or email attachment and then persuading the user to open the file with the affected software on the local system. A successful exploit could allow the attacker to crash the affected software and view memory state information.","A vulnerability in Cisco Webex Player for Windows and MacOS could allow an attacker to cause the affected software to terminate or to gain access to memory s...","2021-06-04T17:15:08.903","2023-11-07T03:28:32.287",6.1,"CVSS:3.1\u002FAV:L\u002FAC:L\u002FPR:N\u002FUI:R\u002FS:U\u002FC:L\u002FI:N\u002FA:H",{"CVSSMetricV31":15,"CVSSMetricV30":28,"CVSSMetricV2":38,"CVSSMetricV40":28},[16,31],{"Source":17,"Type":18,"CVSSData":19,"ExploitabilityScore":29,"ImpactScore":30},"nvd@nist.gov","Primary",{"Version":20,"VectorString":13,"AttackVector":21,"AttackComplexity":22,"PrivilegesRequired":23,"UserInteraction":24,"Scope":25,"ConfidentialityImpact":22,"IntegrityImpact":23,"AvailabilityImpact":26,"BaseScore":12,"BaseSeverity":27,"ExploitCodeMaturity":28,"RemediationLevel":28,"ReportConfidence":28,"TemporalScore":28,"TemporalSeverity":28,"ConfidentialityRequirement":28,"IntegrityRequirement":28,"AvailabilityRequirement":26,"ModifiedAttackVector":28,"ModifiedAttackComplexity":28,"ModifiedPrivilegesRequired":28,"ModifiedUserInteraction":28,"ModifiedScope":28,"ModifiedConfidentialityImpact":28,"ModifiedIntegrityImpact":28,"ModifiedAvailabilityImpact":28,"EnvironmentalScore":28,"EnvironmentalSeverity":28},"3.1","LOCAL","LOW","NONE","REQUIRED","UNCHANGED","HIGH","MEDIUM",null,1.8,4.2,{"Source":32,"Type":33,"CVSSData":34,"ExploitabilityScore":29,"ImpactScore":37},"d1c1063e-7a18-46af-9102-31f8928bc633","Secondary",{"Version":20,"VectorString":35,"AttackVector":21,"AttackComplexity":22,"PrivilegesRequired":23,"UserInteraction":24,"Scope":25,"ConfidentialityImpact":22,"IntegrityImpact":22,"AvailabilityImpact":22,"BaseScore":36,"BaseSeverity":27,"ExploitCodeMaturity":28,"RemediationLevel":28,"ReportConfidence":28,"TemporalScore":28,"TemporalSeverity":28,"ConfidentialityRequirement":28,"IntegrityRequirement":28,"AvailabilityRequirement":22,"ModifiedAttackVector":28,"ModifiedAttackComplexity":28,"ModifiedPrivilegesRequired":28,"ModifiedUserInteraction":28,"ModifiedScope":28,"ModifiedConfidentialityImpact":28,"ModifiedIntegrityImpact":28,"ModifiedAvailabilityImpact":28,"EnvironmentalScore":28,"EnvironmentalSeverity":28},"CVSS:3.1\u002FAV:L\u002FAC:L\u002FPR:N\u002FUI:R\u002FS:U\u002FC:L\u002FI:L\u002FA:L",5.3,3.4,[39],{"Source":17,"Type":18,"CVSSData":40,"BaseSeverity":27,"ExploitabilityScore":46,"ImpactScore":47,"ACInsufInfo":28,"ObtainAllPrivilege":28,"ObtainUserPrivilege":28,"ObtainOtherPrivilege":28,"UserInteractionRequired":4},{"Version":41,"VectorString":42,"AccessVector":43,"AccessComplexity":27,"Authentication":23,"ConfidentialityImpact":44,"IntegrityImpact":23,"AvailabilityImpact":44,"BaseScore":45,"BaseSeverity":28,"Exploitability":28,"RemediationLevel":28,"ReportConfidence":28,"TemporalScore":28,"CollateralDamagePotential":28,"TargetDistribution":28,"ConfidentialityRequirement":28,"IntegrityRequirement":28,"AvailabilityRequirement":28,"EnvironmentalScore":28},"2.0","AV:N\u002FAC:M\u002FAu:N\u002FC:P\u002FI:N\u002FA:P","NETWORK","PARTIAL",5.8,8.6,4.9,0.00576,[48,48,48,48,48,48,48],"Medium",[52],{"vendor":53,"product":54,"version":55,"criteria":56,"vulnerable":4},"cisco","webex_player","*","cpe:2.3:a:cisco:webex_player:*:*:*:*:*:macos:*:*",1,[59],{"url":60,"source":61,"tags":62},"https:\u002F\u002Ftools.cisco.com\u002Fsecurity\u002Fcenter\u002Fcontent\u002FCiscoSecurityAdvisory\u002Fcisco-sa-webex-player-kxtkFbnR","Cisco",[63],"Vendor Advisory",[65,73],{"id":66,"name":67,"description":68,"extendedDescription":69,"status":70,"abstraction":71,"structure":72},"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":74,"name":75,"description":76,"extendedDescription":77,"status":78,"abstraction":79,"structure":72},"CWE-119","Improper Restriction of Operations within the Bounds of a Memory Buffer","The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.","Certain languages allow direct addressing of memory locations and do not automatically ensure that these locations are valid for the memory buffer that is being referenced. This can cause read or write operations to be performed on memory locations that may be associated with other variables, data structures, or internal program data.","Stable","Class",2,false,[],{"title":84,"metaDescription":85,"keywords":86,"canonicalUrl":87,"structuredData":88},"What is CVE-2021-1527? Vulnerability Analysis | Security Advisory | Precursor Intelligence","Comprehensive analysis of CVE-2021-1527, a medium severity cyber security vulnerability from 2021. A vulnerability in Cisco Webex Player for Windows and MacO...","CVE-2021-1527, CVE-2021-1527 vulnerability, CVE-2021-1527 security, medium severity vulnerability, cybersecurity, vulnerability analysis, security advisory, CVE database, threat intelligence, security research, vulnerability assessment, cyber threats, 2021, CVSS score, exploit, patch, remediation, cisco security, webex_player vulnerability","\u002Fwhat-is\u002Fcve-2021-1527",{"@context":89,"@type":90,"headline":84,"description":85,"datePublished":10,"dateModified":11,"author":91,"publisher":95,"about":99,"mainEntityOfPage":103,"articleSection":106,"keywords":107},"https:\u002F\u002Fschema.org","TechArticle",{"@type":92,"name":93,"url":94},"Organization","Precursor Intelligence","https:\u002F\u002Fprecursorintelligence.com",{"@type":92,"name":93,"url":94,"logo":96},{"@type":97,"url":98},"ImageObject","https:\u002F\u002Fprecursorintelligence.com\u002Fimg\u002Flogos\u002Feplogo.png",{"@type":100,"name":6,"description":101,"additionalType":102},"Thing","Cybersecurity Vulnerability","https:\u002F\u002Fschema.org\u002FSoftwareBug",{"@type":104,"@id":105},"WebPage","https:\u002F\u002Fprecursorintelligence.com\u002Fwhat-is\u002Fcve-2021-1527","Cybersecurity","CVE-2021-1527, CVE-2021-1527 vulnerability, CVE-2021-1527 security, medium severity vulnerability, cybersecurity, vulnerability analysis, security advisory, CVE database, threat intelligence, security research",[109],{"Operator":28,"Negate":28,"Nodes":110},[111],{"Operator":112,"Negate":28,"CPEMatch":113},"OR",[114,117],{"Vulnerable":4,"Criteria":56,"MatchCriteriaID":115,"VersionStartExcluding":28,"VersionStartIncluding":28,"VersionEndExcluding":116,"VersionEndIncluding":28},"C52850E9-6516-49C8-8BF3-C68A276230DC","41.5",{"Vulnerable":4,"Criteria":118,"MatchCriteriaID":119,"VersionStartExcluding":28,"VersionStartIncluding":28,"VersionEndExcluding":116,"VersionEndIncluding":28},"cpe:2.3:a:cisco:webex_player:*:*:*:*:*:windows:*:*","0E25CC24-78DA-4FA0-8BDB-43CB54FED14A",[],[],{"lastModified":11,"cacheTime":123,"version":41},1792375428696,{"score":125,"band":126,"action":127,"scoredAt":128},20,"Low","Monitor","2026-10-16T06:51:13.970044+00:00"]