CVE-2026-81944 PUBLISHED

PLANET IGS-5225-8P2T4S V1/V2 Stack-Based Buffer Overflow via Web Server

Assigner: VulnCheck
Reserved: 27.08.2026 Published: 18.09.2026 Updated: 18.09.2026

PLANET IGS-5225-8P2T4S industrial managed switch V1 and V2 firmware versions before 1.2412b260707 and 2.2412b260519 contain a stack-based buffer overflow in the web server. Insufficient bounds checking on data copied into a stack buffer allows a remote authenticated attacker to cause a denial of service or potentially execute arbitrary code on the underlying operating system.

CVSS Vector: CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CVSS Score: 7.7

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	High	Confidentiality	None
Attack Complexity	High	Integrity	High	Integrity	None
Attack Requirements	None	Availability	High	Availability	None
Privileges Required	Low
User Interaction	None

CVSS 4.0

CVSS Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS Score: 7.5

Attack Vector	Network	Scope	Unchanged
Attack Complexity	High	Confidentiality Impact	High
Privileges Required	Low	Integrity Impact	High
User Interaction	None	Availability Impact	High

CVSS 3.1

Product Status

Vendor	PLANET Technology Corp.
Product	PLANET IGS-5225-8P2T4S V1
Versions	Default: unaffected affected from 0 to 1.2412b260707 (excl.)

Vendor	PLANET Technology Corp.
Product	PLANET IGS-5225-8P2T4S V2
Versions	Default: affected affected from 0 to 2.2412b260519 (excl.)

Credits

Ivan Kurnakov, Vladimir Nazarov, Ilya Bubliy, Iliya Rogachev, Arseny Grigorev, Ivan Tarakanov, Aleksey Karimov (Positive Technologies) finder
Maksim Gruzin finder

References

Problem Types

Stack-based Buffer Overflow CWE