CVE-2026-109090— libXi XGetDeviceControl DEVICE_ENABLE Heap Buffer Overflow
Quick assessment
Affected
x.org libXi
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
在 libXi 1.8.4 版本之前，恶意的 X 服务器可以通过注入一个过大的 DEVICE_ENABLE 响应，在 libXi 处理该响应时引发堆溢出漏洞。
Possible ATT&CK Techniques 1 AI
T1190 · Exploit Public-Facing Application
Get alerts for future matching vulnerabilities
Log in to subscribe
I. Basic Information for CVE-2026-109090
Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗
Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.
Vulnerability Title
libXi XGetDeviceControl DEVICE_ENABLE Heap Buffer Overflow
Source: CVE Program / CVE List V5
Vulnerability Description
A malicious X server could cause a heap overflow by injecting a large DEVICE_ENABLE reply when processed by libXi before 1.8.4.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
堆缓冲区溢出
Source: CVE Program / CVE List V5
Affected Products
II. Public POCs for CVE-2026-109090
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
Premium
No public POC found.
Login to generate AI POCIII. Intelligence Information for CVE-2026-109090
请登录查看更多情报信息。
Other References for CVE-2026-109090 (1)
Same Patch Batch · x.org · 2026-10-27 · 4 CVEs total
| CVE-2026-88812 | 7.8 HIGH | X.Org Server XKB SetGeometry TextDoodad Double Free |
| CVE-2026-109089 | 7.5 HIGH | libXi XGetDeviceControl Control Type Mismatch Heap Buffer Overflow |
| CVE-2026-109088 | 6.5 MEDIUM | libXtst RECORD EnableContext Reply Endless Loop |
IV. Related Vulnerabilities
Same product: libXi
-
CVE-2026-109089
libXi XGetDeviceControl Control Type Mismatch Heap Buffer Ov -
CVE-2026-94282
Out-of-bounds read in libXi's XI2 enter/leave/focus cookie c -
CVE-2026-94281
Out-of-bounds read in libXi's XListInputDevices() class pars -
CVE-2026-93545
Out-of-bounds read in libXi's XListInputDevices() -
CVE-2026-93544
Out-of-bounds read in libXi's XI2 XIQueryDevice reply parsin
Same vendor: x.org
-
CVE-2026-88812
X.Org Server XKB SetGeometry TextDoodad Double Free -
CVE-2026-109088
libXtst RECORD EnableContext Reply Endless Loop -
CVE-2026-109089
libXi XGetDeviceControl Control Type Mismatch Heap Buffer Ov -
CVE-2026-94287
Denial of service via unsigned underflow in libXpm's write p -
CVE-2026-94286
Out-of-bounds read in libXtst's RECORD reply parser
Same weakness: CWE-122
-
CVE-2026-108307
Tanium addressed a heap-based buffer overflow vulnerability -
CVE-2026-57198
Asterisk: Possible RED T.140 Heap Buffer Overflow -
CVE-2026-57197
Asterisk: Heap Buffer Overflow in OGG/Speex File Playback (f -
CVE-2026-109089
libXi XGetDeviceControl Control Type Mismatch Heap Buffer Ov -
CVE-2026-112710
Fireware OS Heap Buffer Overflow in AD Authentication Servic