CVE-2025-41739 (GCVE-0-2025-41739)
Vulnerability from cvelistv5 – Published: 2025-12-01 10:00 – Updated: 2025-12-01 10:00
VLAI?
Summary
An unauthenticated remote attacker, who beats a race condition, can exploit a flaw in the communication servers of the CODESYS Control runtime system on Linux and QNX to trigger an out-of-bounds read via crafted socket communication, potentially causing a denial of service.
Severity ?
5.9 (Medium)
CWE
- CWE-125 - Out-of-bounds Read
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| CODESYS | CODESYS PLCHandler |
Affected:
3.5.21.0 , < 3.5.21.40
(semver)
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Credits
ABB AG
{
"containers": {
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "CODESYS PLCHandler",
"vendor": "CODESYS",
"versions": [
{
"lessThan": "3.5.21.40",
"status": "affected",
"version": "3.5.21.0",
"versionType": "semver"
}
]
},
{
"defaultStatus": "unaffected",
"product": "CODESYS Remote Target Visu",
"vendor": "CODESYS",
"versions": [
{
"lessThan": "3.5.21.40",
"status": "affected",
"version": "3.5.21.0",
"versionType": "semver"
}
]
},
{
"defaultStatus": "unaffected",
"product": "CODESYS Runtime Toolkit",
"vendor": "CODESYS",
"versions": [
{
"lessThan": "3.5.21.40",
"status": "affected",
"version": "3.5.21.0",
"versionType": "semver"
}
]
},
{
"defaultStatus": "unaffected",
"product": "CODESYS Control for BeagleBone SL",
"vendor": "CODESYS",
"versions": [
{
"lessThan": "4.19.0.0",
"status": "affected",
"version": "4.15.0.0",
"versionType": "semver"
}
]
},
{
"defaultStatus": "unaffected",
"product": "CODESYS Control for emPC-A/iMX6 SL",
"vendor": "CODESYS",
"versions": [
{
"lessThan": "4.19.0.0",
"status": "affected",
"version": "4.15.0.0",
"versionType": "semver"
}
]
},
{
"defaultStatus": "unaffected",
"product": "CODESYS Control for IOT2000 SL",
"vendor": "CODESYS",
"versions": [
{
"lessThan": "4.19.0.0",
"status": "affected",
"version": "4.15.0.0",
"versionType": "semver"
}
]
},
{
"defaultStatus": "unaffected",
"product": "CODESYS Control for Linux ARM SL",
"vendor": "CODESYS",
"versions": [
{
"lessThan": "4.19.0.0",
"status": "affected",
"version": "4.15.0.0",
"versionType": "semver"
}
]
},
{
"defaultStatus": "unaffected",
"product": "CODESYS Control for Linux SL",
"vendor": "CODESYS",
"versions": [
{
"lessThan": "4.19.0.0",
"status": "affected",
"version": "4.15.0.0",
"versionType": "semver"
}
]
},
{
"defaultStatus": "unaffected",
"product": "CODESYS Control for PFC100 SL",
"vendor": "CODESYS",
"versions": [
{
"lessThan": "4.19.0.0",
"status": "affected",
"version": "4.15.0.0",
"versionType": "semver"
}
]
},
{
"defaultStatus": "unaffected",
"product": "CODESYS Control for PFC200 SL",
"vendor": "CODESYS",
"versions": [
{
"lessThan": "4.19.0.0",
"status": "affected",
"version": "4.15.0.0",
"versionType": "semver"
}
]
},
{
"defaultStatus": "unaffected",
"product": "CODESYS Control for PLCnext SL",
"vendor": "CODESYS",
"versions": [
{
"lessThan": "4.19.0.0",
"status": "affected",
"version": "4.15.0.0",
"versionType": "semver"
}
]
},
{
"defaultStatus": "unaffected",
"product": "CODESYS Control for Raspberry Pi SL",
"vendor": "CODESYS",
"versions": [
{
"lessThan": "4.19.0.0",
"status": "affected",
"version": "4.15.0.0",
"versionType": "semver"
}
]
},
{
"defaultStatus": "unaffected",
"product": "CODESYS Control for WAGO Touch Panels 600 SL",
"vendor": "CODESYS",
"versions": [
{
"lessThan": "4.19.0.0",
"status": "affected",
"version": "4.15.0.0",
"versionType": "semver"
}
]
},
{
"defaultStatus": "unaffected",
"product": "CODESYS Edge Gateway for Linux",
"vendor": "CODESYS",
"versions": [
{
"lessThan": "4.19.0.0",
"status": "affected",
"version": "4.15.0.0",
"versionType": "semver"
}
]
},
{
"defaultStatus": "unaffected",
"product": "CODESYS TargetVisu for Linux SL",
"vendor": "CODESYS",
"versions": [
{
"lessThan": "4.19.0.0",
"status": "affected",
"version": "4.15.0.0",
"versionType": "semver"
}
]
},
{
"defaultStatus": "unaffected",
"product": "CODESYS Virtual Control SL",
"vendor": "CODESYS",
"versions": [
{
"lessThan": "4.19.0.0",
"status": "affected",
"version": "4.15.0.0",
"versionType": "semver"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"user": "00000000-0000-4000-9000-000000000000",
"value": "ABB AG"
}
],
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "An unauthenticated remote attacker, who beats a race condition, can exploit a flaw in the communication servers of the CODESYS Control runtime system on Linux and QNX to trigger an out-of-bounds read via crafted socket communication, potentially causing a denial of service.\u003cbr\u003e"
}
],
"value": "An unauthenticated remote attacker, who beats a race condition, can exploit a flaw in the communication servers of the CODESYS Control runtime system on Linux and QNX to trigger an out-of-bounds read via crafted socket communication, potentially causing a denial of service."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "HIGH",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 5.9,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-125",
"description": "CWE-125 Out-of-bounds Read",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2025-12-01T10:00:44.373Z",
"orgId": "270ccfa6-a436-4e77-922e-914ec3a9685c",
"shortName": "CERTVDE"
},
"references": [
{
"url": "https://certvde.com/de/advisories/VDE-2025-099"
}
],
"source": {
"advisory": "VDE-2025-099",
"defect": [
"CERT@VDE#641888"
],
"discovery": "UNKNOWN"
},
"title": "CODESYS Control - Linux/QNX SysSocket flaw",
"x_generator": {
"engine": "Vulnogram 0.1.0-dev"
}
}
},
"cveMetadata": {
"assignerOrgId": "270ccfa6-a436-4e77-922e-914ec3a9685c",
"assignerShortName": "CERTVDE",
"cveId": "CVE-2025-41739",
"datePublished": "2025-12-01T10:00:44.373Z",
"dateReserved": "2025-04-16T11:17:48.320Z",
"dateUpdated": "2025-12-01T10:00:44.373Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"nvd": "{\"cve\":{\"id\":\"CVE-2025-41739\",\"sourceIdentifier\":\"info@cert.vde.com\",\"published\":\"2025-12-01T10:16:01.320\",\"lastModified\":\"2025-12-01T15:39:33.110\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"An unauthenticated remote attacker, who beats a race condition, can exploit a flaw in the communication servers of the CODESYS Control runtime system on Linux and QNX to trigger an out-of-bounds read via crafted socket communication, potentially causing a denial of service.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"info@cert.vde.com\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":5.9,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"HIGH\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":2.2,\"impactScore\":3.6}]},\"weaknesses\":[{\"source\":\"info@cert.vde.com\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-125\"}]}],\"references\":[{\"url\":\"https://certvde.com/de/advisories/VDE-2025-099\",\"source\":\"info@cert.vde.com\"}]}}"
}
}
Loading…
Loading…
Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Loading…
Loading…