High
rtl-433 — security advisory
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.
- Products
- rtl-433
- Affected versions
- 19.08-1, 19.08-1build1, 19.08-2, 20.02-1, 20.11-1, 21.05-2, 21.05-2build1, 21.12-1, 22.11-1, 23.11-1, 23.11-1build1, 25.02-1, 25.02-1.1, 25.12-1, 26.07-1
- Fixed versions
- Not specified
- CVEs
- CVE-2025-34450
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 01:48 UTC · Revision 1
Source evidence
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.
osv:UBUNTU-CVE-2025-34450
rtl-433
Fixed versions: Not specified
rtl-433
Fixed versions: Not specified
rtl-433
Fixed versions: Not specified
rtl-433
Fixed versions: Not specified
rtl-433
Fixed versions: Not specified
rtl-433
Fixed versions: Not specified
Complete source record
{
"id": "db1555998ae53b37e2c9d6a870683e645f81053ac13ef4381de41e2c666841b7",
"url": "https://osv.dev/vulnerability/UBUNTU-CVE-2025-34450",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "UBUNTU-CVE-2025-34450",
"summary": "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.",
"evidence": "osv:UBUNTU-CVE-2025-34450",
"products": [
{
"name": {
"value": "rtl-433",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "19.08-1",
"evidence": "/affected/0/versions"
},
{
"value": "19.08-1build1",
"evidence": "/affected/0/versions"
},
{
"value": "19.08-2",
"evidence": "/affected/0/versions"
},
{
"value": "20.02-1",
"evidence": "/affected/0/versions"
}
]
},
{
"name": {
"value": "rtl-433",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "20.11-1",
"evidence": "/affected/1/versions"
},
{
"value": "21.05-2",
"evidence": "/affected/1/versions"
},
{
"value": "21.05-2build1",
"evidence": "/affected/1/versions"
},
{
"value": "21.12-1",
"evidence": "/affected/1/versions"
}
]
},
{
"name": {
"value": "rtl-433",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "22.11-1",
"evidence": "/affected/2/versions"
},
{
"value": "23.11-1",
"evidence": "/affected/2/versions"
},
{
"value": "23.11-1build1",
"evidence": "/affected/2/versions"
}
]
},
{
"name": {
"value": "rtl-433",
"evidence": "/affected/3/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "25.02-1",
"evidence": "/affected/3/versions"
}
]
},
{
"name": {
"value": "rtl-433",
"evidence": "/affected/4/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "25.12-1",
"evidence": "/affected/4/versions"
},
{
"value": "26.07-1",
"evidence": "/affected/4/versions"
}
]
},
{
"name": {
"value": "rtl-433",
"evidence": "/affected/5/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "25.02-1",
"evidence": "/affected/5/versions"
},
{
"value": "25.02-1.1",
"evidence": "/affected/5/versions"
},
{
"value": "25.12-1",
"evidence": "/affected/5/versions"
}
]
}
],
"severity": "high",
"structured": {
"id": "UBUNTU-CVE-2025-34450",
"aliases": [
"UBUNTU-CVE-2025-34450"
],
"metrics": [
{
"type": "CVSS_V4",
"score": "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"
},
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
},
{
"type": "Ubuntu",
"score": "medium"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "rtl-433",
"purl": "pkg:deb/ubuntu/rtl-433?arch=source&distro=focal",
"ecosystem": "Ubuntu:20.04:LTS"
},
"versions": [
"19.08-1",
"19.08-1build1",
"19.08-2",
"20.02-1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-34450.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "rtl-433",
"binary_version": "20.02-1"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "rtl-433",
"purl": "pkg:deb/ubuntu/rtl-433?arch=source&distro=jammy",
"ecosystem": "Ubuntu:22.04:LTS"
},
"versions": [
"20.11-1",
"21.05-2",
"21.05-2build1",
"21.12-1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-34450.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "rtl-433",
"binary_version": "21.12-1"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "rtl-433",
"purl": "pkg:deb/ubuntu/rtl-433?arch=source&distro=noble",
"ecosystem": "Ubuntu:24.04:LTS"
},
"versions": [
"22.11-1",
"23.11-1",
"23.11-1build1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-34450.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "rtl-433",
"binary_version": "23.11-1build1"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "rtl-433",
"purl": "pkg:deb/ubuntu/rtl-433?arch=source&distro=questing",
"ecosystem": "Ubuntu:25.10"
},
"versions": [
"25.02-1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-34450.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "rtl-433",
"binary_version": "25.02-1"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "rtl-433",
"purl": "pkg:deb/ubuntu/rtl-433?arch=source&distro=stonking",
"ecosystem": "Ubuntu:26.10"
},
"versions": [
"25.12-1",
"26.07-1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-34450.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "rtl-433",
"binary_version": "26.07-1"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "rtl-433",
"purl": "pkg:deb/ubuntu/rtl-433?arch=source&distro=resolute",
"ecosystem": "Ubuntu:26.04:LTS"
},
"versions": [
"25.02-1",
"25.02-1.1",
"25.12-1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-34450.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "rtl-433",
"binary_version": "25.12-1"
}
]
}
}
],
"modified": "2026-10-17T12:57:27.356820723Z",
"provider": "osv",
"upstream": [
"CVE-2025-34450"
],
"references": [
"https://ubuntu.com/security/CVE-2025-34450",
"https://www.cve.org/CVERecord?id=CVE-2025-34450",
"https://github.com/dd32/rtl_433/commit/25e47f8",
"https://github.com/marlinkcyber/advisories/blob/main/advisories/MCSAID-2025-004-rtl_433-rfraw-parse-overflow.md",
"https://github.com/merbanan/rtl_433/issues/3375",
"https://www.vulncheck.com/advisories/merbanan-rtl-433-stack-based-buffer-overflow"
]
},
"related_cves": [
{
"value": "CVE-2025-34450",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/1/score"
},
"source_id": "core-osv",
"document_id": 357523,
"published_at": "2025-12-18T22:15:00+00:00"
}