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CVE-2023-31284

20
FAUCET Score

CVE-2023-31284 is a stack buffer overflow vulnerability affecting illumos illumos-gate before commit 676abcb. This flaw allows a local, authenticated attacker to achieve privilege escalation by performing a stat operation on a long filename within the /dev/net directory. Rated 7.8 HIGH, it has a low attack complexity and no user interaction required, leading to high impacts on confidentiality, integrity, and availability. Currently, there is no public exploit code available, it is not listed in the KEV catalog, and there is no community discussion or media coverage surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
< 2023-04-29CPE matchmatch criteria
cpe:2.3:a:illumos:illumos-gate:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.8HIGH

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
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
0.28%
Probability of exploitation in next 30 days
EPSS Percentile
20.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0028 is in the 56th percentile among its peer group of 17,061 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, 0.2 Bluesky, 0.1 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

Remediation records are not available for this CVE.

References

github.com / illumos/illumos-gate/tree/16b76d3cb933ff92018a2a75594449010192eacb
Product
illumos.topicbox.com / groups/developer/T13ef186a53edeb5c-M821cc18b5884e04e16daa8fd/cve-2023-31284-buffer-overflow-in-dev-net
Issue Tracking
openwall.com / lists/oss-security/2023/09/13/4
openwall.com / lists/oss-security/2023/09/13/5
openwall.com / lists/oss-security/2023/09/14/4