{"id":"CVE-2021-22945","revision":"0b927fad5c604ceab22f4a60fe94a314","records":[{"revision":"0b927fad5c604ceab22f4a60fe94a314","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2021-22945","aliases":[],"title":"When sending data to an MQTT server, libcurl <= 7.73.0 and 7.78.0 could in some circumstances erroneously keep a pointer to an already freed memory area and both use that again in a subsequent call to send data and also free it *again*.","description":"When sending data to an MQTT server, libcurl <= 7.73.0 and 7.78.0 could in some circumstances erroneously keep a pointer to an already freed memory area and both use that again in a subsequent call to send data and also free it *again*.","state":0,"publishedAt":"2021-09-23T00:00:00+00:00","modifiedAt":"2026-10-14T11:19:23.431+00:00","affected":[{"ecosystem":"Vendor product","name":"https://github.com/curl/curl","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"n/a\",\n                    \"product\": \"https://github.com/curl/curl\",\n                    \"versions\": [\n                        {\n                            \"version\": \"curl 7.73.0 to and including 7.78.0\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[],"references":["https://hackerone.com/reports/1269242","https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RWLEC6YVEM2HWUBX67SDGPSY4CQB72OE/","https://www.oracle.com/security-alerts/cpuoct2021.html","https://security.netapp.com/advisory/ntap-20211029-0003/","https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/APOAK4X73EJTAPTSVT7IRVDMUWVXNWGD/","https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf","https://support.apple.com/kb/HT213183","http://seclists.org/fulldisclosure/2022/Mar/29","https://www.debian.org/security/2022/dsa-5197","https://security.gentoo.org/glsa/202212-01"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2021-22945","license":"CVE Program Terms of Use","key":"cve-program:CVE-2021-22945","identifiers":["CVE-2021-22945"]},"retained":false,"historicalAffected":[]}],"coverage":[]}