CVE-2026-8484

Heap buffer overflow in Jansi

Published Jun 16, 2026 CVSS 4.0 · 4.8 Medium EPSS < 1% KEV · Not listed
Description
A heap buffer overflow vulnerability exists in the Jansi JNI "ioctl()" wrapper due to a lack of size verification for the argument array before the system call. This can lead to heap corruption and application crashes (DoS).
All versions are believed to be vulnerable. This project is unmaintained at the time of CVE assignment.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Fusesource
Fusesource jansi
Vendors & Products Fusesource
Fusesource jansi
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description A heap buffer overflow vulnerability exists in the Jansi JNI "ioctl()" wrapper due to a lack of size verification for the argument array before the system call. This can lead to heap corruption and application crashes (DoS). All versions are believed to be vulnerable. This project is unmaintained at the time of CVE assignment.
Title Heap buffer overflow in Jansi
Weaknesses CWE-122
References
Metrics cvssV4_0

{'score': 4.8, 'vector': 'CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
CERT-PL
Published
Updated
Jun 16, 2026, 12:15 PM
Reserved
May 13, 2026, 2:47 PM
Status
Deferred
Published
Jun 16, 2026, 12:16 PM
Modified
Oct 26, 2026, 11:10 AM