CVE-2023-36359
Status: ModifiedHigh (7.5)—
TP-Link TL-WR940N V4, TL-WR841N V8/V10, TL-WR940N V2/V3 and TL-WR941ND V5/V6 were discovered to contain a buffer overflow in the component /userRpm/QoSRuleListRpm. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted GET request.
CVSS
- Version: 3.1
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Base score: 7.5
Exploitation probability (EPSS)
- Probability of exploitation in the next 30 days: 0.81%
- Percentile among all scored CVEs: 56
- Score date: 10/6/2026
EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).
Affected technologies (3)
CWEs
- CWE-120
- CWE-120
References
- https://github.com/a101e-IoTvul/iotvul/blob/main/tp-link/8/TP-Link%20TL-WR940N%20TL-WR841N%20TL-WR941ND%20wireless%20router%20userRpmQoSRuleListRpm%20buffer%20read%20out-of-bounds%20vulnerability.md
- https://github.com/a101e-IoTvul/iotvul/blob/main/tp-link/8/TP-Link%20TL-WR940N%20TL-WR841N%20TL-WR941ND%20wireless%20router%20userRpmQoSRuleListRpm%20buffer%20read%20out-of-bounds%20vulnerability.md
- https://github.com/a101e-IoTvul/iotvul/blob/main/tp-link/8/TP-Link%20TL-WR940N%20TL-WR841N%20TL-WR941ND%20wireless%20router%20userRpmQoSRuleListRpm%20buffer%20read%20out-of-bounds%20vulnerability.md
Raw JSON (NVD)
Show
{
"id": "CVE-2023-36359",
"cveTags": [],
"metrics": {
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2023-36359",
"role": "CISA Coordinator",
"options": [
{
"exploitation": "none"
},
{
"automatable": "yes"
},
{
"technicalImpact": "partial"
}
],
"version": "2.0.3",
"timestamp": "2024-12-10T21:01:21.608116Z"
}
}
],
"cvssMetricV31": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"cvssData": {
"scope": "UNCHANGED",
"version": "3.1",
"baseScore": 7.5,
"attackVector": "NETWORK",
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"integrityImpact": "NONE",
"userInteraction": "NONE",
"attackComplexity": "LOW",
"availabilityImpact": "HIGH",
"privilegesRequired": "NONE",
"confidentialityImpact": "NONE"
},
"impactScore": 3.6,
"exploitabilityScore": 3.9
},
{
"type": "Secondary",
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"cvssData": {
"scope": "UNCHANGED",
"version": "3.1",
"baseScore": 7.5,
"attackVector": "NETWORK",
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"integrityImpact": "NONE",
"userInteraction": "NONE",
"attackComplexity": "LOW",
"availabilityImpact": "HIGH",
"privilegesRequired": "NONE",
"confidentialityImpact": "NONE"
},
"impactScore": 3.6,
"exploitabilityScore": 3.9
}
]
},
"affected": [
{
"source": "cve@mitre.org",
"affectedData": [
{
"vendor": "n/a",
"product": "n/a",
"versions": [
{
"status": "affected",
"version": "n/a"
}
]
}
]
}
],
"published": "2023-06-22T20:15:09.920",
"references": [
{
"url": "https://github.com/a101e-IoTvul/iotvul/blob/main/tp-link/8/TP-Link%20TL-WR940N%20TL-WR841N%20TL-WR941ND%20wireless%20router%20userRpmQoSRuleListRpm%20buffer%20read%20out-of-bounds%20vulnerability.md",
"tags": [
"Exploit",
"Third Party Advisory"
],
"source": "cve@mitre.org"
},
{
"url": "https://github.com/a101e-IoTvul/iotvul/blob/main/tp-link/8/TP-Link%20TL-WR940N%20TL-WR841N%20TL-WR941ND%20wireless%20router%20userRpmQoSRuleListRpm%20buffer%20read%20out-of-bounds%20vulnerability.md",
"tags": [
"Exploit",
"Third Party Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://github.com/a101e-IoTvul/iotvul/blob/main/tp-link/8/TP-Link%20TL-WR940N%20TL-WR841N%20TL-WR941ND%20wireless%20router%20userRpmQoSRuleListRpm%20buffer%20read%20out-of-bounds%20vulnerability.md",
"tags": [
"Exploit",
"Third Party Advisory"
],
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"
}
],
"vulnStatus": "Modified",
"weaknesses": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"description": [
{
"lang": "en",
"value": "CWE-120"
}
]
},
{
"type": "Secondary",
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"description": [
{
"lang": "en",
"value": "CWE-120"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "TP-Link TL-WR940N V4, TL-WR841N V8/V10, TL-WR940N V2/V3 and TL-WR941ND V5/V6 were discovered to contain a buffer overflow in the component /userRpm/QoSRuleListRpm. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted GET request."
}
],
"lastModified": "2026-06-17T06:06:06.227",
"configurations": [
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:tp-link:tl-wr940n_firmware:-:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "2492A6CA-DFF1-42DC-8800-4A66D8943C33"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:tp-link:tl-wr940n:v4:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "2537DC7E-8024-45B5-924C-18C9B702DAFC"
}
],
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:tp-link:tl-wr841n_firmware:-:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "F7F95370-1001-4194-A0CB-B3CEA027AB6D"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:tp-link:tl-wr841n:v8:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "2F9738A0-4CC4-4C8C-A4BA-843395B0AA55"
}
],
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:tp-link:tl-wr841n_firmware:-:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "F7F95370-1001-4194-A0CB-B3CEA027AB6D"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:tp-link:tl-wr841n:v10:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "BDC4230D-3A3A-4D0E-BBD3-79C3054E90F8"
}
],
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:tp-link:tl-wr940n_firmware:-:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "2492A6CA-DFF1-42DC-8800-4A66D8943C33"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:tp-link:tl-wr940n:v2:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "029B4B03-94CE-41FF-A635-41682AE4B26D"
}
],
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:tp-link:tl-wr940n_firmware:-:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "2492A6CA-DFF1-42DC-8800-4A66D8943C33"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:tp-link:tl-wr940n:v3:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "DF722F24-7D43-4535-B013-545109CB1D98"
}
],
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:tp-link:tl-wr941nd_firmware:-:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "7600C377-2A63-4127-8958-32E04E7983CA"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:tp-link:tl-wr941nd:v5:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "1B0FC0E0-6C5B-49CA-95E3-D4AAC9D51518"
}
],
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:tp-link:tl-wr941nd_firmware:-:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "7600C377-2A63-4127-8958-32E04E7983CA"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:tp-link:tl-wr941nd:v6:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "111123CC-8945-4BB2-AD6B-08E80B1A2AD6"
}
],
"operator": "OR"
}
],
"operator": "AND"
}
],
"sourceIdentifier": "cve@mitre.org"
}