cve-2025-36855
Vulnerability from cvelistv5
Published
2025-09-08 13:57
Modified
2025-09-08 14:06
Severity ?
EPSS score ?
Summary
EOL .NET 6.0 Runtime Remote Code Execution Vulnerability
References
{ "containers": { "adp": [ { "metrics": [ { "other": { "content": { "id": "CVE-2025-36855", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "total" } ], "role": "CISA Coordinator", "timestamp": "2025-09-08T14:06:12.291326Z", "version": "2.0.3" }, "type": "ssvc" } } ], "providerMetadata": { "dateUpdated": "2025-09-08T14:06:24.393Z", "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP" }, "title": "CISA ADP Vulnrichment" } ], "cna": { "affected": [ { "platforms": [ "Unknown" ], "product": ".NET 6.0", "vendor": "Microsoft", "versions": [ { "lessThan": "6.0.36", "status": "affected", "version": "6.0.0", "versionType": "custom" } ] } ], "datePublic": "2025-01-14T08:00:00.000Z", "descriptions": [ { "lang": "en-US", "supportingMedia": [ { "base64": false, "type": "text/html", "value": "\u003cp\u003eA vulnerability (\u003ca target=\"_blank\" rel=\"nofollow\" href=\"https://www.cve.org/CVERecord?id=CVE-2025-21176\"\u003eCVE-2025-21176\u003c/a\u003e) exists in \u003cem\u003eDiaSymReader.dll\u003c/em\u003e\u0026nbsp;due to buffer over-read.\u003c/p\u003e \u003cp\u003ePer \u003ca target=\"_blank\" rel=\"nofollow\" href=\"https://cwe.mitre.org/data/definitions/126.html\"\u003eCWE-126: Buffer Over-read\u003c/a\u003e, Buffer Over-read is when a product reads from a buffer using buffer access mechanisms such as indexes or pointers that reference memory locations after the targeted buffer.\u003c/p\u003e \u003cdiv\u003e \u003cdiv\u003eThis issue affects EOL ASP.NET 6.0.0 \u0026lt;= 6.0.36 as represented in this CVE, as well as 8.0.0 \u0026lt;= 8.0.11 \u0026amp; \u0026lt;= 9.0.0 as represented in\u0026nbsp;CVE-2025-21176.\u003c/div\u003e \u003c/div\u003e \u003cp\u003eAdditionally, if you\u0027ve deployed \u003ca target=\"_blank\" rel=\"nofollow\" href=\"https://docs.microsoft.com/dotnet/core/deploying/#self-contained-deployments-scd\"\u003eself-contained applications\u003c/a\u003e\u0026nbsp;targeting any of the impacted versions, these applications are also vulnerable and must be recompiled and redeployed.\u003c/p\u003e \u003cp\u003e\u003cstrong\u003eNOTE:\u003c/strong\u003e\u0026nbsp;This CVE affects only \u003cstrong\u003eEnd Of Life (EOL)\u0026nbsp;\u003c/strong\u003esoftware components. The vendor, Microsoft, has indicated there will be no future updates nor support provided upon inquiry.\u003c/p\u003e" } ], "value": "A vulnerability ( CVE-2025-21176 https://www.cve.org/CVERecord ) exists in DiaSymReader.dll\u00a0due to buffer over-read.\n\n Per CWE-126: Buffer Over-read https://cwe.mitre.org/data/definitions/126.html , Buffer Over-read is when a product reads from a buffer using buffer access mechanisms such as indexes or pointers that reference memory locations after the targeted buffer.\n\n This issue affects EOL ASP.NET 6.0.0 \u003c= 6.0.36 as represented in this CVE, as well as 8.0.0 \u003c= 8.0.11 \u0026 \u003c= 9.0.0 as represented in\u00a0CVE-2025-21176.\n\n \n\n Additionally, if you\u0027ve deployed self-contained applications https://docs.microsoft.com/dotnet/core/deploying/#self-contained-deployments-scd \u00a0targeting any of the impacted versions, these applications are also vulnerable and must be recompiled and redeployed.\n\n NOTE:\u00a0This CVE affects only End Of Life (EOL)\u00a0software components. The vendor, Microsoft, has indicated there will be no future updates nor support provided upon inquiry." } ], "metrics": [ { "cvssV3_1": { "attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "version": "3.1" }, "format": "CVSS", "scenarios": [ { "lang": "en", "value": "GENERAL" } ] } ], "problemTypes": [ { "descriptions": [ { "cweId": "CWE-126", "description": "CWE-126: Buffer Over-read", "lang": "en-US", "type": "CWE" } ] } ], "providerMetadata": { "dateUpdated": "2025-09-08T13:57:28.386Z", "orgId": "36c7be3b-2937-45df-85ea-ca7133ea542c", "shortName": "HeroDevs" }, "references": [ { "name": ".NET, .NET Framework, and Visual Studio Remote Code Execution Vulnerability", "tags": [ "third-party-advisory" ], "url": "https://www.herodevs.com/vulnerability-directory/cve-2025-21176" }, { "name": ".NET, .NET Framework, and Visual Studio Remote Code Execution Vulnerability", "tags": [ "vendor-advisory" ], "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-21176" } ], "title": "EOL .NET 6.0 Runtime Remote Code Execution Vulnerability" } }, "cveMetadata": { "assignerOrgId": "36c7be3b-2937-45df-85ea-ca7133ea542c", "assignerShortName": "HeroDevs", "cveId": "CVE-2025-36855", "datePublished": "2025-09-08T13:57:28.386Z", "dateReserved": "2025-04-15T23:50:31.198Z", "dateUpdated": "2025-09-08T14:06:24.393Z", "state": "PUBLISHED" }, "dataType": "CVE_RECORD", "dataVersion": "5.1", "meta": { "nvd": "{\"cve\":{\"id\":\"CVE-2025-36855\",\"sourceIdentifier\":\"36c7be3b-2937-45df-85ea-ca7133ea542c\",\"published\":\"2025-09-08T14:15:34.577\",\"lastModified\":\"2025-09-08T16:25:38.810\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"A vulnerability ( CVE-2025-21176 https://www.cve.org/CVERecord ) exists in DiaSymReader.dll\u00a0due to buffer over-read.\\n\\n Per CWE-126: Buffer Over-read https://cwe.mitre.org/data/definitions/126.html , Buffer Over-read is when a product reads from a buffer using buffer access mechanisms such as indexes or pointers that reference memory locations after the targeted buffer.\\n\\n This issue affects EOL ASP.NET 6.0.0 \u003c= 6.0.36 as represented in this CVE, as well as 8.0.0 \u003c= 8.0.11 \u0026 \u003c= 9.0.0 as represented in\u00a0CVE-2025-21176.\\n\\n \\n\\n Additionally, if you\u0027ve deployed self-contained applications https://docs.microsoft.com/dotnet/core/deploying/#self-contained-deployments-scd \u00a0targeting any of the impacted versions, these applications are also vulnerable and must be recompiled and redeployed.\\n\\n NOTE:\u00a0This CVE affects only End Of Life (EOL)\u00a0software components. The vendor, Microsoft, has indicated there will be no future updates nor support provided upon inquiry.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"36c7be3b-2937-45df-85ea-ca7133ea542c\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H\",\"baseScore\":8.8,\"baseSeverity\":\"HIGH\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"REQUIRED\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":2.8,\"impactScore\":5.9}]},\"weaknesses\":[{\"source\":\"36c7be3b-2937-45df-85ea-ca7133ea542c\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-126\"}]}],\"references\":[{\"url\":\"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-21176\",\"source\":\"36c7be3b-2937-45df-85ea-ca7133ea542c\"},{\"url\":\"https://www.herodevs.com/vulnerability-directory/cve-2025-21176\",\"source\":\"36c7be3b-2937-45df-85ea-ca7133ea542c\"}]}}" } }
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- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.