Description
When doing a second SMB request to the same host again, curl would wrongly use a data pointer pointing into already freed memory.
Affected products
haxx: curl
References4
- curl.se/docs/CVE-2026-3805.html PatchVendor Advisory
- curl.se/docs/CVE-2026-3805.json Vendor Advisory
- hackerone.com/reports/3591944 ExploitIssue TrackingThird Party Advisory
- www.openwall.com/lists/oss-security/2026/03/11/4 Mailing ListThird Party Advisory
Metrics
- CVSS 3.1
-
7.5
HIGH
Score source: CNA
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - EPSS — exploit probability
- 1% percentile: 60 · as of 12 November 2026
- CWE
- CWE-416
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