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CVE-2026-87121

🗓️ 22 Sep 2026 20:17:00Reported by ubuntu.comType 
ubuntucve
 ubuntucve
🔗 ubuntu.com👁 7 Views

Out-of-bounds write in lwIP TCP/IP Stack MQTT on unix enables remote code execution.

Related
Packages
Refs
ReporterTitlePublishedViews
Family
circl
Circl
CVE-2026-87121
22 Sep 202616:15
–circl
cve
CVE
CVE-2026-87121
22 Sep 202619:48
–cve
cvelist
Cvelist
CVE-2026-87121 Out-of-bounds write in lwIP TCP/IP Stack MQTT Client Application
22 Sep 202619:48
–cvelist
debiancve
Debian CVE
CVE-2026-87121
22 Sep 202619:48
–debiancve
euvd
EUVD
EUVD-2026-84816
22 Sep 202619:48
–euvd
ics
ICS
lwIP TCP/IP Stack MQTT Client Application
22 Sep 202606:00
–ics
nvd
NVD
CVE-2026-87121
22 Sep 202620:17
–nvd
osv
OSV
DEBIAN-CVE-2026-87121
22 Sep 202620:17
–osv
osv
OSV
UBUNTU-CVE-2026-87121
22 Sep 202620:17
–osv
rapid7
Rapid7 Vulnerability Database (full)
CVE-2026-87121: Out-of-bounds Write
22 Sep 202600:00
–rapid7
Rows per page
OSOS VersionArchitecturePackagePackage VersionFilename
Ubuntu20.04alllwip0lwip_0_all.deb
Ubuntu22.04alllwip0lwip_0_all.deb
Ubuntu24.04alllwip0lwip_0_all.deb
Ubuntu26.04alllwip0lwip_0_all.deb

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24 Sep 2026 01:05Current
6.2Medium risk
Vulners AI Score6.2
CVSS 49.3
CVSS 3.19.8
EPSS0.00528
SSVC
7