CVE-2025-34450

MEDIUM EPSS 8.8%
Published Dec 18, 20256mo ago · Modified Jun 17, 20261w ago
6.9 CVSS 4.0
Medium
Find Similar
Published Dec 18, 2025 6mo ago
Last Modified Jun 17, 2026 1w ago

Description

merbanan/rtl_433 versions up to and including 25.02 and prior to commit 25e47f8 contain a stack-based buffer overflow vulnerability in the function parse_rfraw() located in src/rfraw.c. When processing crafted or excessively large raw RF input data, the application may write beyond the bounds of a stack buffer, resulting in memory corruption or a crash. This vulnerability can be exploited to cause a denial of service and, under certain conditions, may be leveraged for further exploitation depending on the execution environment and available mitigations.

CVSS Details

Base Score
6.9
Exploitability
—
Impact
—
Vector string
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector Local
Attack Complexity Low
Privileges Required None
User Interaction None
Scope X

Threat Intelligence

EPSS Exploit Probability
8.8% percentile
Exploit & Patch Status
Public Exploit Known
Patch Available

Weaknesses 2

CWE-121
CWE-787 Out-of-bounds Write Memory Safety

Affected Products 1

VendorProductVersionRange
rtl_433_projectrtl_433* ≤25.02

References 4

  • github.com https://github.com/dd32/rtl_433/commit/25e47f8
    Patch
  • github.com https://github.com/marlinkcyber/advisories/blob/main/advisories/MCSAID-2025-004-rtl_433-rfraw-parse-overflow.md
    ExploitThird Party Advisory
  • github.com https://github.com/merbanan/rtl_433/issues/3375
    ExploitIssue TrackingPatch
  • vulncheck.com https://www.vulncheck.com/advisories/merbanan-rtl-433-stack-based-buffer-overflow
    Third Party Advisory

Remediation

  • github.com https://github.com/dd32/rtl_433/commit/25e47f8
    Patch
  • github.com https://github.com/merbanan/rtl_433/issues/3375
    ExploitIssue TrackingPatch