CVE-2025-29329
CRITICAL
2026-01-12
[email protected]
9.8
CVSS 3.1
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CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Lifecycle Timeline
3
Analysis Generated
Mar 12, 2026 - 21:54 vuln.today
PoC Detected
Jan 22, 2026 - 18:46 vuln.today
Public exploit code
CVE Published
Jan 12, 2026 - 22:16 nvd
CRITICAL 9.8
Tags
Description
Buffer Overflow in the ippprint (Internet Printing Protocol) service in Sagemcom F@st 3686 MAGYAR_4.121.0 allows remote attacker to execute arbitrary code by sending a crafted HTTP request.
Analysis
Sagemcom F@st 3686 cable modem/router has a buffer overflow in the IPP printing service that allows unauthenticated remote code execution via crafted HTTP requests. PoC available.
Technical Context
The ippprint service processes HTTP requests without proper bounds checking (CWE-120). A crafted request overflows a buffer, enabling code execution on the cable modem.
Affected Products
Sagemcom F@st 3686 MAGYAR_4.121.0
Remediation
Contact your ISP for firmware updates. If possible, use your own router behind the cable modem.
Priority Score
71
Low
Medium
High
Critical
KEV: 0
EPSS: +1.7
CVSS: +49
POC: +20
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External POC / Exploit Code
Leaving vuln.today
Destination URL
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