CVE-2023-31284: illumos illumos-gate Out-of-bounds Write
CVSS: 7.8v3.1HighModified
Published 04-05-2023Last modified 29-01-2025
Vulnerability summary
CVE-2023-31284 is a high (CVSS 7.8) Out-of-bounds Write vulnerability in illumos illumos-gate. EPSS estimates a 0.28% chance of exploitation in the next 30 days, higher than 18.8% of scored vulnerabilities.
CVSS score
7.8/10
010
High · v3.1 (CVE.org)EPSS score
0.28%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 04-05-2023PublishedVulnerability first disclosed.
- 29-01-2025Last modifiedVulnerability information updated.
Description
illumos illumos-gate before 676abcb has a stack buffer overflow in /dev/net, leading to privilege escalation via a stat on a long file name in /dev/net.
CVSS metrics
2 scores · 2 sources · 1 versionHigh 7.8Preferred score · CVE.org (CNA)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HSourcesAll 2 agree
- NVDNIST7.8HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS trend
Probability
0.28%
Chance of exploitation in the next 30 days
Percentile
19%
Versus all other CVEs
30-day change
0.00 pp
From 0.28% on 20-09-2026
20-09-202620-10-2026
EPSS score0.28%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Illumos1 product
- illumos-gate< 2023-04-29
1 vendor · 1 product
References
5 links- illumos.topicbox.com/groups/…Issue Tracking
- www.openwall.com/lists/oss-security/2023/09/13/4Mailing List
- www.openwall.com/lists/oss-security/2023/09/13/5Mailing List
- www.openwall.com/lists/oss-security/2023/09/14/4Mailing List