CVE-2023-27537
A double free vulnerability exists in libcurl <8.0.0 when sharing HSTS data between separate "handles". This sharing was introduced without considerations for do this sharing across separate threads but there was no indication of this fact in the documentation. Due to missing mutexes or thread locks, two threads sharing the same HSTS data could end up doing a double-free or use-after-free.
- CVSS 3.1
- 5.9
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H - EPSS
- 1.9% chance of exploitation in the next 30 days; higher than 79% of CVEs (scores of 2026-10-25)
- CWE
- CWE-415
- Published
- Modified
- Record from
- the NVD, synced
Affected
- broadcom:brocade_fabric_operating_system_firmware
- haxx:libcurl
- netapp:active_iq_unified_manager
- netapp:clustered_data_ontap
- netapp:h300s_firmware
- netapp:h410s_firmware
- netapp:h500s_firmware
- netapp:h700s_firmware
- splunk:universal_forwarder