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*.
Metrics
Affected Vendors & Products
References
History
Wed, 14 Oct 2026 12:30:00 +0000
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Mon, 09 Jun 2025 15:15:00 +0000
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Status: PUBLISHED
Assigner: hackerone
Published: 2021-09-23T00:00:00.000Z
Updated: 2026-10-14T11:19:23.431Z
Reserved: 2021-01-06T00:00:00.000Z
Link: CVE-2021-22945
Updated: 2024-08-03T18:58:26.137Z
Status : Modified
Published: 2021-09-23T13:15:08.690
Modified: 2026-10-14T12:17:08.693
Link: CVE-2021-22945