Bug 2538778 (CVE-2026-87121) - CVE-2026-87121 lwip: lwip: Arbitrary code execution via MQTT out-of-bounds write
Summary: CVE-2026-87121 lwip: lwip: Arbitrary code execution via MQTT out-of-bounds write
Keywords:
Status: NEW
Alias: CVE-2026-87121
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
urgent
urgent
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-09-22 20:31 UTC by OSIDB Bzimport
Modified: 2026-10-09 06:04 UTC (History)
0 users

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:

Attachments (Terms of Use)

Description OSIDB Bzimport 2026-09-22 20:31:45 UTC 
lwIP TCP/IP Stack MQTT is vulnerable to an out-of-bounds write, which may allow an attacker to gain full code execution on the device.
Note You need to log in before you can comment on or make changes to this bug.