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CVE-2016-9313

20
FAUCET Score

CVE-2016-9313 is a denial-of-service vulnerability affecting the Linux kernel before version 4.8.7, specifically within the security/keys/big_key.c component. It arises from improper handling of unsuccessful crypto registration combined with successful key-type registration, allowing local users to trigger a NULL pointer dereference and system panic. With a CVSS score of 7.8 (High), this vulnerability has a low attack complexity and requires no privileges, but does necessitate user interaction. While the potential impact includes high confidentiality, integrity, and availability, there is no evidence of active exploitation, publicly available exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
>= 4.7, < 4.8.7CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.8HIGH

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
2.11%
Probability of exploitation in next 30 days
EPSS Percentile
79.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0211 is in the 80th percentile among its peer group of 11,616 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

github_advisorypatch availablevia nvd_reference
View patch

Vendor Advisories (1)

redhatCVE-2016-9313Moderate

kernel: security/keys/big_key.c mishandles unsuccessful crypto registration

Jul 22, 2016

References

git.kernel.org / cgit/linux/kernel/git/torvalds/linux.git/commit
Issue TrackingPatchThird Party Advisory
github.com / torvalds/linux/commit/7df3e59c3d1df4f87fe874c7956ef7a3d2f4d5fb
Issue TrackingPatchThird Party Advisory
kernel.org / pub/linux/kernel/v4.x/ChangeLog-4.8.7
Release Notes
openwall.com / lists/oss-security/2016/07/22/1
ExploitMailing ListThird Party Advisory
securityfocus.com / bid/94546
Third Party AdvisoryVDB Entry