CVE-2016-9594
curl before version 7.52.1 is vulnerable to an uninitialized random in libcurl's internal function that returns a good 32bit random value.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (2.22%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
curl before version 7.52.1 is vulnerable to an uninitialized random in libcurl's internal function that returns a good 32bit random value. Having a weak or virtually non-existent random value makes the operations that use it vulnerable.
- CVSS 3.0
- 8.1 HIGHCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 2.22% probability · 83th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-665
- Affected
- haxx/curl
- Source
- secalert@redhat.com
EPSS 2.2% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://www.securityfocus.com/bid/95094Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1037528Third Party Advisory, VDB Entry
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-9594Issue Tracking, Third Party Advisory
- https://curl.haxx.se/docs/adv_20161223.htmlVendor Advisory
- https://security.gentoo.org/glsa/201701-47Third Party Advisory
- https://www.tenable.com/security/tns-2017-04Third Party Advisory
- http://www.securityfocus.com/bid/95094Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1037528Third Party Advisory, VDB Entry
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-9594Issue Tracking, Third Party Advisory
- https://curl.haxx.se/docs/adv_20161223.htmlVendor Advisory
- https://security.gentoo.org/glsa/201701-47Third Party Advisory
- https://www.tenable.com/security/tns-2017-04Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.