[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"repo-stars":3,"vuln-CVE-2021-3491":6},{"stargazers_count":4,"fetched_at":5},7,"2026-06-04T02:53:27.892Z",{"id":7,"descriptions":8,"cisa":9,"weaknesses":10,"exploits":33,"aliases":34,"duplicate_of":9,"upstream":35,"downstream":36,"duplicates":85,"related":86,"reserved_at":9,"published_at":107,"modified_at":108,"state":109,"summary":110,"references_raw":119,"kevs":154,"epss":155,"epss_history":158,"metrics":414,"affected":429},"CVE-2021-3491","The io_uring subsystem in the Linux kernel allowed the MAX_RW_COUNT limit to be bypassed in the PROVIDE_BUFFERS operation, which led to negative values being usedin mem_rw when reading /proc/\u003CPID>/mem. This could be used to create a heap overflow leading to arbitrary code execution in the kernel. It was addressed via commit d1f82808877b (\"io_uring: truncate lengths larger than MAX_RW_COUNT on provide buffers\") (v5.13-rc1) and backported to the stable kernels in v5.12.4, v5.11.21, and v5.10.37. It was introduced in ddf0322db79c (\"io_uring: add IORING_OP_PROVIDE_BUFFERS\") (v5.7-rc1).",null,[11,20],{"_key":12,"id":12,"name":13,"description":14,"type":15,"status":16,"abstraction":17,"likelihood_of_exploit":18,"capec":19},"CWE-787","Out-of-bounds Write","The product writes data past the end, or before the beginning, of the intended buffer.","weakness","Draft","Base","High",[],{"_key":21,"id":21,"name":22,"description":23,"type":15,"status":16,"abstraction":17,"likelihood_of_exploit":18,"capec":24},"CWE-131","Incorrect Calculation of Buffer Size","The product does not correctly calculate the size to be used when allocating a buffer, which could lead to a buffer overflow.",[25,29],{"id":26,"name":27,"techniques":28},"CAPEC-100","Overflow Buffers",[],{"id":30,"name":31,"techniques":32},"CAPEC-47","Buffer Overflow via Parameter Expansion",[],[],[],[],[37,39,41,43,45,47,49,51,53,55,57,59,61,63,65,67,69,71,73,75,77,79,81,83],{"_key":38},"SUSE-SU-2021:1975-1",{"_key":40},"SUSE-SU-2021:1977-1",{"_key":42},"SUSE-SU-2021:2208-1",{"_key":44},"SUSE-SU-2021:1887-1",{"_key":46},"SUSE-SU-2021:1888-1",{"_key":48},"SUSE-SU-2021:1889-1",{"_key":50},"SUSE-SU-2021:1890-1",{"_key":52},"SUSE-SU-2021:1891-1",{"_key":54},"SUSE-SU-2021:1899-1",{"_key":56},"SUSE-SU-2021:1912-1",{"_key":58},"SUSE-SU-2021:1913-1",{"_key":60},"SUSE-SU-2021:2421-1",{"_key":62},"UBUNTU-CVE-2021-3491",{"_key":64},"OPENSUSE-SU-2021:0843-1",{"_key":66},"OPENSUSE-SU-2021:0947-1",{"_key":68},"OPENSUSE-SU-2021:1975-1",{"_key":70},"OPENSUSE-SU-2021:1977-1",{"_key":72},"OPENSUSE-SU-2024:10728-1",{"_key":74},"OPENSUSE-SU-2024:13704-1",{"_key":76},"MGASA-2021-0214",{"_key":78},"MGASA-2021-0215",{"_key":80},"DEBIAN-CVE-2021-3491",{"_key":82},"USN-4948-1",{"_key":84},"USN-4949-1",[],[87,88,89,90,91,92,93,94,95,96,97,98,99,100,101,102,103,104,105,106],{"_key":38},{"_key":40},{"_key":42},{"_key":78},{"_key":44},{"_key":46},{"_key":48},{"_key":50},{"_key":52},{"_key":54},{"_key":56},{"_key":58},{"_key":60},{"_key":64},{"_key":66},{"_key":68},{"_key":70},{"_key":72},{"_key":74},{"_key":76},"2021-06-04T01:40:20.936Z","2024-09-16T22:09:25.883Z","Modified",{"cisa_kev":111,"cisa_ransomware":111,"cisa_vendor":9,"epss_severity":112,"epss_score":113,"severity":114,"severity_score":115,"severity_version":116,"severity_source":117,"severity_vector":118,"severity_status":109},false,"low",0.0006,"high",8.8,"v3.1","nvd","CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",[120,128,132,139,144,149],{"url":121,"sources":122,"tags":124},"https://ubuntu.com/security/notices/USN-4950-1",[123,117],"cve.org",[125,126,127],"Vendor Advisory","X Refsource UBUNTU","Third Party Advisory",{"url":129,"sources":130,"tags":131},"https://ubuntu.com/security/notices/USN-4949-1",[123,117],[125,126,127],{"url":133,"sources":134,"tags":135},"https://www.openwall.com/lists/oss-security/2021/05/11/13",[123,117],[136,137,138,127],"Mailing List","X Refsource MLIST","Patch",{"url":140,"sources":141,"tags":142},"https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=d1f82808877bb10d3deee7cf3374a4eb3fb582db",[123,117],[143,138,125],"X Refsource MISC",{"url":145,"sources":146,"tags":147},"https://www.zerodayinitiative.com/advisories/ZDI-21-589/",[123,117],[143,127,148],"VDB Entry",{"url":150,"sources":151,"tags":152},"https://security.netapp.com/advisory/ntap-20210716-0004/",[123,117],[153,127],"X Refsource CONFIRM",[],{"date":156,"score":113,"percentile":157},"2026-06-03",0.18828,[159,163,166,170,172,175,178,180,183,186,188,190,192,194,197,201,204,207,210,212,215,217,220,222,224,227,230,232,234,237,240,243,245,248,251,254,257,259,262,265,268,271,274,277,279,282,284,287,290,293,296,299,301,303,307,310,312,316,319,322,325,328,331,334,337,340,343,346,349,351,354,357,360,363,366,369,372,375,378,381,384,387,390,393,396,399,402,405,408,411],{"date":160,"score":161,"percentile":162},"2025-11-04",0.00008,0.00461,{"date":164,"score":161,"percentile":165},"2025-11-05",0.0046,{"date":167,"score":168,"percentile":169},"2025-11-06",0.00007,0.00376,{"date":171,"score":168,"percentile":169},"2025-11-07",{"date":173,"score":168,"percentile":174},"2025-11-08",0.00374,{"date":176,"score":168,"percentile":177},"2025-11-09",0.00373,{"date":179,"score":168,"percentile":177},"2025-11-10",{"date":181,"score":168,"percentile":182},"2025-11-11",0.00372,{"date":184,"score":168,"percentile":185},"2025-11-12",0.00368,{"date":187,"score":168,"percentile":185},"2025-11-13",{"date":189,"score":168,"percentile":185},"2025-11-14",{"date":191,"score":168,"percentile":185},"2025-11-15",{"date":193,"score":168,"percentile":185},"2025-11-16",{"date":195,"score":168,"percentile":196},"2025-11-17",0.00369,{"date":198,"score":199,"percentile":200},"2025-11-18",0.00065,0.16003,{"date":202,"score":199,"percentile":203},"2025-11-19",0.16013,{"date":205,"score":199,"percentile":206},"2025-11-20",0.15996,{"date":208,"score":168,"percentile":209},"2025-11-21",0.00378,{"date":211,"score":168,"percentile":209},"2025-11-22",{"date":213,"score":168,"percentile":214},"2025-11-23",0.00379,{"date":216,"score":168,"percentile":214},"2025-11-24",{"date":218,"score":168,"percentile":219},"2025-11-25",0.0038,{"date":221,"score":168,"percentile":209},"2025-11-26",{"date":223,"score":168,"percentile":209},"2025-11-27",{"date":225,"score":168,"percentile":226},"2025-11-28",0.00383,{"date":228,"score":168,"percentile":229},"2025-11-29",0.00386,{"date":231,"score":168,"percentile":229},"2025-11-30",{"date":233,"score":168,"percentile":226},"2025-12-01",{"date":235,"score":168,"percentile":236},"2025-12-02",0.00382,{"date":238,"score":168,"percentile":239},"2025-12-03",0.00384,{"date":241,"score":168,"percentile":242},"2025-12-04",0.0039,{"date":244,"score":168,"percentile":242},"2025-12-05",{"date":246,"score":168,"percentile":247},"2025-12-06",0.00388,{"date":249,"score":168,"percentile":250},"2025-12-07",0.00389,{"date":252,"score":168,"percentile":253},"2025-12-08",0.00394,{"date":255,"score":168,"percentile":256},"2025-12-09",0.00405,{"date":258,"score":168,"percentile":256},"2025-12-10",{"date":260,"score":168,"percentile":261},"2025-12-11",0.00408,{"date":263,"score":168,"percentile":264},"2025-12-12",0.00412,{"date":266,"score":168,"percentile":267},"2025-12-13",0.00411,{"date":269,"score":168,"percentile":270},"2025-12-14",0.00409,{"date":272,"score":161,"percentile":273},"2025-12-15",0.00505,{"date":275,"score":161,"percentile":276},"2025-12-16",0.00507,{"date":278,"score":161,"percentile":276},"2025-12-17",{"date":280,"score":161,"percentile":281},"2025-12-18",0.00504,{"date":283,"score":161,"percentile":281},"2025-12-19",{"date":285,"score":161,"percentile":286},"2025-12-20",0.00503,{"date":288,"score":161,"percentile":289},"2025-12-21",0.00481,{"date":291,"score":161,"percentile":292},"2025-12-22",0.00485,{"date":294,"score":161,"percentile":295},"2025-12-23",0.0049,{"date":297,"score":161,"percentile":298},"2025-12-24",0.00491,{"date":300,"score":161,"percentile":295},"2025-12-25",{"date":302,"score":161,"percentile":295},"2025-12-26",{"date":304,"score":305,"percentile":306},"2025-12-27",0.0001,0.00749,{"date":308,"score":161,"percentile":309},"2025-12-28",0.00489,{"date":311,"score":161,"percentile":298},"2025-12-29",{"date":313,"score":314,"percentile":315},"2025-12-30",0.00047,0.14613,{"date":317,"score":314,"percentile":318},"2025-12-31",0.14677,{"date":320,"score":314,"percentile":321},"2026-01-01",0.14763,{"date":323,"score":314,"percentile":324},"2026-01-02",0.14752,{"date":326,"score":314,"percentile":327},"2026-01-03",0.14726,{"date":329,"score":314,"percentile":330},"2026-01-04",0.14646,{"date":332,"score":314,"percentile":333},"2026-01-05",0.14594,{"date":335,"score":314,"percentile":336},"2026-01-06",0.14604,{"date":338,"score":314,"percentile":339},"2026-01-07",0.14641,{"date":341,"score":314,"percentile":342},"2026-01-08",0.14705,{"date":344,"score":314,"percentile":345},"2026-01-09",0.14714,{"date":347,"score":314,"percentile":348},"2026-01-10",0.14735,{"date":350,"score":314,"percentile":330},"2026-01-11",{"date":352,"score":314,"percentile":353},"2026-01-12",0.14615,{"date":355,"score":314,"percentile":356},"2026-01-13",0.14598,{"date":358,"score":314,"percentile":359},"2026-01-14",0.14657,{"date":361,"score":314,"percentile":362},"2026-01-15",0.14653,{"date":364,"score":314,"percentile":365},"2026-01-16",0.14678,{"date":367,"score":314,"percentile":368},"2026-01-17",0.147,{"date":370,"score":314,"percentile":371},"2026-01-18",0.1464,{"date":373,"score":314,"percentile":374},"2026-01-19",0.1457,{"date":376,"score":113,"percentile":377},"2026-01-20",0.18827,{"date":379,"score":113,"percentile":380},"2026-01-21",0.18796,{"date":382,"score":113,"percentile":383},"2026-01-22",0.18735,{"date":385,"score":113,"percentile":386},"2026-01-23",0.18831,{"date":388,"score":113,"percentile":389},"2026-01-24",0.18857,{"date":391,"score":113,"percentile":392},"2026-01-25",0.18784,{"date":394,"score":113,"percentile":395},"2026-01-26",0.18683,{"date":397,"score":113,"percentile":398},"2026-01-27",0.18672,{"date":400,"score":113,"percentile":401},"2026-01-28",0.18675,{"date":403,"score":113,"percentile":404},"2026-01-29",0.18639,{"date":406,"score":113,"percentile":407},"2026-01-30",0.1865,{"date":409,"score":113,"percentile":410},"2026-01-31",0.18658,{"date":412,"score":113,"percentile":413},"2026-02-01",0.1868,[415,422],{"source":123,"cvss_v2_0":9,"cvss_v3_0":9,"cvss_v3_1":416,"cvss_v4_0":9},{"baseScore":417,"baseSeverity":418,"vectorString":419,"impactScore":420,"exploitabilityScore":421},7.8,"HIGH","CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H",10,2.8,{"source":117,"cvss_v2_0":423,"cvss_v3_0":9,"cvss_v3_1":427,"cvss_v4_0":9},{"baseScore":424,"baseSeverity":9,"vectorString":425,"impactScore":420,"exploitabilityScore":426},7.2,"AV:L/AC:L/Au:N/C:C/I:C/A:C",3.9,{"baseScore":115,"baseSeverity":418,"vectorString":118,"impactScore":420,"exploitabilityScore":428},5.1,[430,443],{"ecosystem":9,"name":431,"vendor":432,"product":433,"cpe_part":434,"purl_type":9,"purl_namespace":9,"purl_name":9,"source":9,"versions":435},"ubuntu linux","canonical","ubuntu_linux","o",[436,439,441],{"version":437,"is_range":111,"range_type":438,"version_start":9,"version_start_type":9,"version_end":9,"version_end_type":9,"fixed_in":9},"20.04","cpe",{"version":440,"is_range":111,"range_type":438,"version_start":9,"version_start_type":9,"version_end":9,"version_end_type":9,"fixed_in":9},"20.10",{"version":442,"is_range":111,"range_type":438,"version_start":9,"version_start_type":9,"version_end":9,"version_end_type":9,"fixed_in":9},"21.04",{"ecosystem":9,"name":444,"vendor":445,"product":446,"cpe_part":434,"purl_type":9,"purl_namespace":9,"purl_name":9,"source":9,"versions":447},"linux kernel","linux","linux_kernel",[448,455,459,463,467,471,475,479],{"version":449,"is_range":450,"range_type":438,"version_start":451,"version_start_type":452,"version_end":453,"version_end_type":454,"fixed_in":9},"gte5.7_lt5.10.37",true,"5.7","including","5.10.37","excluding",{"version":456,"is_range":450,"range_type":438,"version_start":457,"version_start_type":452,"version_end":458,"version_end_type":454,"fixed_in":9},"gte5.11_lt5.11.21","5.11","5.11.21",{"version":460,"is_range":450,"range_type":438,"version_start":461,"version_start_type":452,"version_end":462,"version_end_type":454,"fixed_in":9},"gte5.12_lt5.12.4","5.12","5.12.4",{"version":464,"is_range":450,"range_type":123,"version_start":465,"version_start_type":452,"version_end":466,"version_end_type":454,"fixed_in":9},">= trunk, \u003C v5.13-rc4","trunk","v5.13-rc4",{"version":468,"is_range":450,"range_type":123,"version_start":469,"version_start_type":452,"version_end":470,"version_end_type":454,"fixed_in":9},">= linux-5.12.y, \u003C v5.12.4","linux-5.12.y","v5.12.4",{"version":472,"is_range":450,"range_type":123,"version_start":473,"version_start_type":452,"version_end":474,"version_end_type":454,"fixed_in":9},">= linux-5.11.y, \u003C v5.11.21","linux-5.11.y","v5.11.21",{"version":476,"is_range":450,"range_type":123,"version_start":477,"version_start_type":452,"version_end":478,"version_end_type":454,"fixed_in":9},">= linux-5.10.y, \u003C v5.10.37","linux-5.10.y","v5.10.37",{"version":480,"is_range":450,"range_type":123,"version_start":481,"version_start_type":452,"version_end":482,"version_end_type":454,"fixed_in":9},">= v5.7-rc1, \u003C 5.7*","v5.7-rc1","5.7*"]