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. Having a weak or virtually non-existent random value makes
02 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
03 Exploitation and scoring
- Exploitation
- Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
- SSVC decision
- ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
- AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
- Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
- EPSS probability
- 2.21% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 82.5% of scored records. A rank, not a probability.
- NVD base score
- 8.1 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-17.
- Red Hat severity
- Moderate. Red Hat's rating for its own products, not a CVSS rating.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2018-04-23 19:00Z8 YR AGO
- Last updated
- 2026-04-15 21:03Z6 MO AGO
- Reserved
- 2016-11-23
- Assigning CNA
- redhat
- Record state
- PUBLISHED
- Severity
- Medium (CVSS 6.5)
- CNA CVSS vector
- CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
- Weaknesses
- CWE-665Improper InitializationClass
- Data version
- 5.2
- Document digest
- 557d3d9cefbb11f3a8b7f2635ab397879a96430642338006c6b59d7b144b55e2
05 Affected products
06 References
- www.securityfocus.com95094http://www.securityfocus.com/bid/95094
- curl.haxx.sehttps://curl.haxx.se/docs/adv_20161223.html
- www.tenable.comhttps://www.tenable.com/security/tns-2017-04
- www.securitytracker.com1037528http://www.securitytracker.com/id/1037528
- security.gentoo.orgGLSA-201701-47https://security.gentoo.org/glsa/201701-47
- bugzilla.redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-9594
07 Fixed in
Arch Linux
- curl Fixed in 7.52.1-1
- lib32-curl Fixed in 7.52.1-1
- lib32-libcurl-compat Fixed in 7.52.1-1
- lib32-libcurl-gnutls Fixed in 7.52.1-1
- libcurl-compat Fixed in 7.52.1-1
- libcurl-gnutls Fixed in 7.52.1-1
Source: Arch Linux Security Tracker, the Arch Linux security team. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.