PT-2016-7788

CVE-2016-9594

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Published

2016-12-23

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Updated

2026-09-18

Description by

CVSS 3.1
8.1
High
MetricsAV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Name of the Vulnerable Software and Affected Versions curl versions prior to 7.52.1
Description The issue arises from an uninitialized random value in libcurl's internal function, which is used to generate nonces for Digest and NTLM authentication, boundary strings in HTTP formposts, and more. This weak or virtually non-existent random value makes the operations that use it vulnerable. The internal function was implemented poorly, overwriting the pointer instead of writing the value into the buffer the pointer pointed to.
Recommendations For versions prior to 7.52.1, update to version 7.52.1 or later to resolve the issue. As a temporary workaround, consider restricting the use of Digest and NTLM authentication, as well as HTTP formposts, until a patch is available.
Exploitability
Fix
Impacts
Researchers
Vendors
Affected products
Related identifiers
ALT-PU-2016-2479
ALT-PU-2018-2456
CLEANSTART-2026-AY18527
CLEANSTART-2026-BW46578
CLEANSTART-2026-DI23929
CLEANSTART-2026-LQ42192
CLEANSTART-2026-OF85770
CLEANSTART-2026-QX18395
OPENSUSE-SU-2024:10582-1
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