[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fsUrHD2j76H3Epy4YzcbNSqg7W6b2PEti0cstf83at4g":3,"g5a-risk:CVE-2025-21605":149},{"success":4,"data":5,"meta":146},true,{"cveId":6,"title":7,"description":8,"shortDescription":9,"publishedDate":10,"lastModified":11,"cvssScore":12,"cvssVector":13,"cvssMetrics":14,"epssScore":31,"epssPercentile":26,"epssTimeSeries":32,"severity":33,"affectedProducts":34,"affectedProductsCount":48,"references":49,"referencesCount":67,"weaknesses":68,"weaknessesCount":77,"isActivelyExploited":78,"cisaInfo":26,"otxData":26,"relatedBlogPosts":79,"seoMetadata":80,"configurations":105,"relatedVendorCves":137,"notableEvents":138},"CVE-2025-21605","What is CVE-2025-21605?","Redis is an open source, in-memory database that persists on disk. In versions starting at 2.6 and prior to 7.4.3, An unauthenticated client can cause unlimited growth of output buffers, until the server runs out of memory or is killed. By default, the Redis configuration does not limit the output buffer of normal clients (see client-output-buffer-limit). Therefore, the output buffer can grow unlimitedly over time. As a result, the service is exhausted and the memory is unavailable. When password authentication is enabled on the Redis server, but no password is provided, the client can still cause the output buffer to grow from \"NOAUTH\" responses until the system will run out of memory. This issue has been patched in version 7.4.3. An additional workaround to mitigate this problem without patching the redis-server executable is to block access to prevent unauthenticated users from connecting to Redis. This can be done in different ways. Either using network access control tools like firewalls, iptables, security groups, etc, or enabling TLS and requiring users to authenticate using client side certificates.","Redis is an open source, in-memory database that persists on disk. In versions starting at 2.6 and prior to 7.4.3, An unauthenticated client can cause unlimi...","2025-04-23T16:15:34.77","2025-09-05T14:31:22.61",7.5,"CVSS:3.1\u002FAV:N\u002FAC:L\u002FPR:N\u002FUI:N\u002FS:U\u002FC:N\u002FI:N\u002FA:H",{"CVSSMetricV31":15,"CVSSMetricV30":29,"CVSSMetricV2":30,"CVSSMetricV40":26},[16],{"Source":17,"Type":18,"CVSSData":19,"ExploitabilityScore":27,"ImpactScore":28},"security-advisories@github.com","Secondary",{"Version":20,"VectorString":13,"AttackVector":21,"AttackComplexity":22,"PrivilegesRequired":23,"UserInteraction":23,"Scope":24,"ConfidentialityImpact":23,"IntegrityImpact":23,"AvailabilityImpact":25,"BaseScore":12,"BaseSeverity":25,"ExploitCodeMaturity":26,"RemediationLevel":26,"ReportConfidence":26,"TemporalScore":26,"TemporalSeverity":26,"ConfidentialityRequirement":26,"IntegrityRequirement":26,"AvailabilityRequirement":26,"ModifiedAttackVector":26,"ModifiedAttackComplexity":26,"ModifiedPrivilegesRequired":26,"ModifiedUserInteraction":26,"ModifiedScope":26,"ModifiedConfidentialityImpact":26,"ModifiedIntegrityImpact":26,"ModifiedAvailabilityImpact":26,"EnvironmentalScore":26,"EnvironmentalSeverity":26},"3.1","NETWORK","LOW","NONE","UNCHANGED","HIGH",null,3.9,3.6,[],[],0.00857,[31,31,31,31,31,31,31],"High",[35,39,43],{"vendor":36,"product":36,"version":37,"criteria":38,"vulnerable":4},"redis","*","cpe:2.3:a:redis:redis:*:*:*:*:*:*:*:*",{"vendor":40,"product":41,"version":37,"criteria":42,"vulnerable":4},"lfprojects","valkey","cpe:2.3:a:lfprojects:valkey:*:*:*:*:*:*:*:*",{"vendor":44,"product":45,"version":46,"criteria":47,"vulnerable":4},"debian","debian_linux","11.0","cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*",3,[50,55,59,62],{"url":51,"source":52,"tags":53},"https:\u002F\u002Fgithub.com\u002Fredis\u002Fredis\u002Freleases\u002Ftag\u002F7.4.3","GitHub",[54],"Release Notes",{"url":56,"source":52,"tags":57},"https:\u002F\u002Fgithub.com\u002Fredis\u002Fredis\u002Fsecurity\u002Fadvisories\u002FGHSA-r67f-p999-2gff",[58],"Third Party Advisory",{"url":60,"source":52,"tags":61},"https:\u002F\u002Fgithub.com\u002Fvalkey-io\u002Fvalkey\u002Freleases\u002Ftag\u002F8.1.1",[54],{"url":63,"source":64,"tags":65},"https:\u002F\u002Flists.debian.org\u002Fdebian-lts-announce\u002F2025\u002F05\u002Fmsg00014.html","Debian",[66],"Mailing List",4,[69],{"id":70,"name":71,"description":72,"extendedDescription":73,"status":74,"abstraction":75,"structure":76},"CWE-770","Allocation of Resources Without Limits or Throttling","The product allocates a reusable resource or group of resources on behalf of an actor without imposing any restrictions on the size or number of resources that can be allocated, in violation of the intended security policy for that actor.","Code frequently has to work with limited resources, so programmers must be careful to ensure that resources are not consumed too quickly, or too easily.  Without use of quotas, resource limits, or other protection mechanisms, it can be easy for an attacker to consume many resources by rapidly making many requests, or causing larger resources to be used than is needed. When too many resources are allocated, or if a single resource is too large, then it can prevent the code from working correctly, possibly leading to a denial of service.","Incomplete","Base","Simple",1,false,[],{"title":81,"metaDescription":82,"keywords":83,"canonicalUrl":84,"structuredData":85},"What is CVE-2025-21605? Vulnerability Analysis | Security Advisory | Precursor Intelligence","Comprehensive analysis of CVE-2025-21605, a high severity cyber security vulnerability from 2025. Redis is an open source, in-memory database that persists o...","CVE-2025-21605, CVE-2025-21605 vulnerability, CVE-2025-21605 security, high severity vulnerability, cybersecurity, vulnerability analysis, security advisory, CVE database, threat intelligence, security research, vulnerability assessment, cyber threats, 2025, CVSS score, exploit, patch, remediation, redis security, lfprojects security, debian security, redis vulnerability, valkey vulnerability, debian_linux vulnerability","\u002Fwhat-is\u002Fcve-2025-21605",{"@context":86,"@type":87,"headline":81,"description":82,"datePublished":10,"dateModified":11,"author":88,"publisher":92,"about":96,"mainEntityOfPage":100,"articleSection":103,"keywords":104},"https:\u002F\u002Fschema.org","TechArticle",{"@type":89,"name":90,"url":91},"Organization","Precursor Intelligence","https:\u002F\u002Fprecursorintelligence.com",{"@type":89,"name":90,"url":91,"logo":93},{"@type":94,"url":95},"ImageObject","https:\u002F\u002Fprecursorintelligence.com\u002Fimg\u002Flogos\u002Feplogo.png",{"@type":97,"name":6,"description":98,"additionalType":99},"Thing","Cybersecurity Vulnerability","https:\u002F\u002Fschema.org\u002FSoftwareBug",{"@type":101,"@id":102},"WebPage","https:\u002F\u002Fprecursorintelligence.com\u002Fwhat-is\u002Fcve-2025-21605","Cybersecurity","CVE-2025-21605, CVE-2025-21605 vulnerability, CVE-2025-21605 security, high severity vulnerability, cybersecurity, vulnerability analysis, security advisory, CVE database, threat intelligence, security research",[106,115,131],{"Operator":26,"Negate":26,"Nodes":107},[108],{"Operator":109,"Negate":78,"CPEMatch":110},"OR",[111],{"Vulnerable":4,"Criteria":38,"MatchCriteriaID":112,"VersionStartExcluding":26,"VersionStartIncluding":113,"VersionEndExcluding":114,"VersionEndIncluding":26},"1BB189E4-7471-438C-9EAE-68BF3740C555","2.6.0","7.4.3",{"Operator":26,"Negate":26,"Nodes":116},[117],{"Operator":109,"Negate":78,"CPEMatch":118},[119,123,127],{"Vulnerable":4,"Criteria":42,"MatchCriteriaID":120,"VersionStartExcluding":26,"VersionStartIncluding":121,"VersionEndExcluding":122,"VersionEndIncluding":26},"FA5DAFF4-B496-4C30-AD4E-A8840E258B95","7.2.4","7.2.9",{"Vulnerable":4,"Criteria":42,"MatchCriteriaID":124,"VersionStartExcluding":26,"VersionStartIncluding":125,"VersionEndExcluding":126,"VersionEndIncluding":26},"76CF44DA-432D-4AED-8346-56694C520EFA","8.0.0","8.0.3",{"Vulnerable":4,"Criteria":42,"MatchCriteriaID":128,"VersionStartExcluding":26,"VersionStartIncluding":129,"VersionEndExcluding":130,"VersionEndIncluding":26},"B579FCAC-72C6-4A20-B54C-036B12B279CF","8.1.0","8.1.1",{"Operator":26,"Negate":26,"Nodes":132},[133],{"Operator":109,"Negate":78,"CPEMatch":134},[135],{"Vulnerable":4,"Criteria":47,"MatchCriteriaID":136,"VersionStartExcluding":26,"VersionStartIncluding":26,"VersionEndExcluding":26,"VersionEndIncluding":26},"FA6FEEC2-9F11-4643-8827-749718254FED",[],[139],{"id":140,"eventType":141,"eventTime":142,"details":143,"label":144,"color":145},"022032eb-aae1-4505-ba2e-c37d93989551","NEW_NVD","2025-04-24T02:15:33.293721+00:00","New CVE added to NVD","Published to NVD","blue",{"lastModified":11,"cacheTime":147,"version":148},1792368181373,"2.0",{"score":150,"band":151,"action":152,"scoredAt":153},47,"Medium","Plan remediation","2026-10-16T07:06:59.173807+00:00"]