CVE-2016-9243

Exploitation

Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.

SSVC decision

Not assessed by CISA

EPSS probability

3.46% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 88.8% of scored records. A rank, not a probability.

NVD base score

7.5 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

NVD analysis status

Modified. NVD last modified this record on 2026-06-17.

Red Hat severity

Low. 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.

Published

2017-03-27 17:00Z9 YR AGO

Last updated

2024-08-06 02:42Z2 YR AGO

Reserved

2016-11-09

Assigning CNA

redhat

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-327Use of a Broken or Risky Cryptographic AlgorithmClass

Data version

5.1

Document digest

a3aa12244b27122d358ebf46166b7c23f9c8909f122dfb36345a453e076f5af8

• lists.fedoraproject.orgFEDORA-2016-2d90e27e50https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/U23KDR2M2N7W2ZSREG63BVW7D4VC6CIZ/vendor-advisoryx_refsource_FEDORA
• www.ubuntu.comUSN-3138-1http://www.ubuntu.com/usn/USN-3138-1vendor-advisoryx_refsource_UBUNTU
• github.comhttps://github.com/pyca/cryptography/commit/b924696b2e8731f39696584d12cceeb3aeb2d874x_refsource_CONFIRM
• lists.fedoraproject.orgFEDORA-2016-d3a2b640cehttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WQ5G7KHKZC4SI23JE7277KZXM57GEQKT/vendor-advisoryx_refsource_FEDORA
• www.securityfocus.com94216http://www.securityfocus.com/bid/94216vdb-entryx_refsource_BID
• www.openwall.com[oss-security] 20161109 Re: CVE Request: Cryptography 1.5.3: HKDF might return an empty byte-stringhttp://www.openwall.com/lists/oss-security/2016/11/09/2mailing-listx_refsource_MLIST
• cryptography.iohttps://cryptography.io/en/latest/changelogx_refsource_CONFIRM
• lists.fedoraproject.orgFEDORA-2016-e77c8c1f3bhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5R2ZOBMPWDFFHUZ6QOZZY36A6H5CGJXL/vendor-advisoryx_refsource_FEDORA
• github.comhttps://github.com/pyca/cryptography/issues/3211x_refsource_CONFIRM