CVE-2023-31284

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.
• AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
• Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.28% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 20.0% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/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

No Red Hat rating. Red Hat rates the CVEs that affect its products.

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

2023-05-04 00:00Z3 YR AGO

Last updated

2025-01-29 19:13Z1 YR AGO

Reserved

2023-04-27

Assigning CNA

mitre

Record state

PUBLISHED

Severity

High (CVSS 7.8)

CNA CVSS vector

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

Weaknesses

• CWE-787Out-of-bounds WriteBase

Data version

5.1

Document digest

7782c2ee03d00c10a80ffd75463e06ca4104038c087454ca00af552474508cee

• github.comhttps://github.com/illumos/illumos-gate/tree/16b76d3cb933ff92018a2a75594449010192eacb
• illumos.topicbox.comhttps://illumos.topicbox.com/groups/developer/T13ef186a53edeb5c-M821cc18b5884e04e16daa8fd/cve-2023-31284-buffer-overflow-in-dev-net
• www.openwall.com[oss-security] 20230913 illumos (or at least danmcd) membership in the distros listhttp://www.openwall.com/lists/oss-security/2023/09/13/4mailing-list
• www.openwall.com[oss-security] 20230913 Re: illumos (or at least danmcd) membership in the distros listhttp://www.openwall.com/lists/oss-security/2023/09/13/5mailing-list
• www.openwall.com[oss-security] 20230914 Re: illumos (or at least danmcd) membership in the distros listhttp://www.openwall.com/lists/oss-security/2023/09/14/4mailing-list