GCVE Workshop - 22 September 2026 (14:00-18:00), Luxembourg Before The Vulnopticon Conference - Registration

CVE-2023-27882 (GCVE-0-2023-27882)

Vulnerability from cvelistv5 – Published: 2023-11-14 09:14 – Updated: 2025-11-04 19:15
VLAI
Summary
A heap-based buffer overflow vulnerability exists in the HTTP Server form boundary functionality of Weston Embedded uC-HTTP v3.01.01. A specially crafted network packet can lead to code execution. An attacker can send a malicious packet to trigger this vulnerability.
SSVC
Exploitation: poc Automatable: yes Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-09-03 14:19 UTC
CWE
  • CWE-122 - Heap-based Buffer Overflow
Impacted products
Show details on NVD website

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2025-11-04T19:15:42.678Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "name": "https://talosintelligence.com/vulnerability_reports/TALOS-2023-1733",
            "tags": [
              "x_transferred"
            ],
            "url": "https://talosintelligence.com/vulnerability_reports/TALOS-2023-1733"
          },
          {
            "url": "https://www.talosintelligence.com/vulnerability_reports/TALOS-2023-1733"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2023-27882",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-09-03T14:19:39.296365Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-09-03T14:20:08.305Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "Gecko Platform",
          "vendor": "Silicon Labs",
          "versions": [
            {
              "status": "affected",
              "version": "4.3.1.0"
            }
          ]
        },
        {
          "product": "Cesium NET",
          "vendor": "Weston Embedded",
          "versions": [
            {
              "status": "affected",
              "version": "3.07.01"
            }
          ]
        },
        {
          "product": "uC-HTTP",
          "vendor": "Weston Embedded",
          "versions": [
            {
              "status": "affected",
              "version": "v3.01.01"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "value": "Discovered by Kelly Leuschner of Cisco Talos."
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "A heap-based buffer overflow vulnerability exists in the HTTP Server form boundary functionality of Weston Embedded uC-HTTP v3.01.01. A specially crafted network packet can lead to code execution. An attacker can send a malicious packet to trigger this vulnerability."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 9,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-122",
              "description": "CWE-122: Heap-based Buffer Overflow",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2023-11-14T18:00:07.947Z",
        "orgId": "b86d76f8-0f8a-4a96-a78d-d8abfc7fc29b",
        "shortName": "talos"
      },
      "references": [
        {
          "name": "https://talosintelligence.com/vulnerability_reports/TALOS-2023-1733",
          "url": "https://talosintelligence.com/vulnerability_reports/TALOS-2023-1733"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "b86d76f8-0f8a-4a96-a78d-d8abfc7fc29b",
    "assignerShortName": "talos",
    "cveId": "CVE-2023-27882",
    "datePublished": "2023-11-14T09:14:52.532Z",
    "dateReserved": "2023-03-22T15:09:15.580Z",
    "dateUpdated": "2025-11-04T19:15:42.678Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2023-27882",
      "date": "2026-09-17",
      "epss": "0.01778",
      "percentile": "0.77146"
    },
    "fkie_nvd": {
      "configurations": "[{\"nodes\": [{\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": true, \"criteria\": \"cpe:2.3:a:silabs:gecko_software_development_kit:4.3.1:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"90DDAC84-E71F-44E3-A5A8-D949DC1943D4\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:a:weston-embedded:cesium_net:3.07.01:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"44A78DFC-FD24-43A2-A4F4-76A77F46E9A5\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:a:weston-embedded:uc-http:3.01.01:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"6939279F-5819-4661-9050-3947010C9B71\"}]}]}]",
      "descriptions": "[{\"lang\": \"en\", \"value\": \"A heap-based buffer overflow vulnerability exists in the HTTP Server form boundary functionality of Weston Embedded uC-HTTP v3.01.01. A specially crafted network packet can lead to code execution. An attacker can send a malicious packet to trigger this vulnerability.\"}, {\"lang\": \"es\", \"value\": \"Existe una vulnerabilidad de desbordamiento del b\\u00fafer en la funcionalidad de l\\u00edmite de formulario HTTP Server de Weston Embedded uC-HTTP v3.01.01. Un paquete de red especialmente manipulado puede provocar la ejecuci\\u00f3n de c\\u00f3digo. Un atacante puede enviar un paquete malicioso para desencadenar esta vulnerabilidad.\"}]",
      "id": "CVE-2023-27882",
      "lastModified": "2024-11-21T07:53:37.790",
      "metrics": "{\"cvssMetricV31\": [{\"source\": \"talos-cna@cisco.com\", \"type\": \"Secondary\", \"cvssData\": {\"version\": \"3.1\", \"vectorString\": \"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H\", \"baseScore\": 9.0, \"baseSeverity\": \"CRITICAL\", \"attackVector\": \"NETWORK\", \"attackComplexity\": \"HIGH\", \"privilegesRequired\": \"NONE\", \"userInteraction\": \"NONE\", \"scope\": \"CHANGED\", \"confidentialityImpact\": \"HIGH\", \"integrityImpact\": \"HIGH\", \"availabilityImpact\": \"HIGH\"}, \"exploitabilityScore\": 2.2, \"impactScore\": 6.0}, {\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"cvssData\": {\"version\": \"3.1\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H\", \"baseScore\": 9.8, \"baseSeverity\": \"CRITICAL\", \"attackVector\": \"NETWORK\", \"attackComplexity\": \"LOW\", \"privilegesRequired\": \"NONE\", \"userInteraction\": \"NONE\", \"scope\": \"UNCHANGED\", \"confidentialityImpact\": \"HIGH\", \"integrityImpact\": \"HIGH\", \"availabilityImpact\": \"HIGH\"}, \"exploitabilityScore\": 3.9, \"impactScore\": 5.9}]}",
      "published": "2023-11-14T10:15:27.113",
      "references": "[{\"url\": \"https://talosintelligence.com/vulnerability_reports/TALOS-2023-1733\", \"source\": \"talos-cna@cisco.com\", \"tags\": [\"Exploit\", \"Technical Description\", \"Third Party Advisory\"]}, {\"url\": \"https://talosintelligence.com/vulnerability_reports/TALOS-2023-1733\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Exploit\", \"Technical Description\", \"Third Party Advisory\"]}]",
      "sourceIdentifier": "talos-cna@cisco.com",
      "vulnStatus": "Modified",
      "weaknesses": "[{\"source\": \"talos-cna@cisco.com\", \"type\": \"Secondary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-122\"}]}, {\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-787\"}]}]"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2023-27882\",\"sourceIdentifier\":\"talos-cna@cisco.com\",\"published\":\"2023-11-14T10:15:27.113\",\"lastModified\":\"2026-06-17T05:46:01.513\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"A heap-based buffer overflow vulnerability exists in the HTTP Server form boundary functionality of Weston Embedded uC-HTTP v3.01.01. A specially crafted network packet can lead to code execution. An attacker can send a malicious packet to trigger this vulnerability.\"},{\"lang\":\"es\",\"value\":\"Existe una vulnerabilidad de desbordamiento del b\u00fafer en la funcionalidad de l\u00edmite de formulario HTTP Server de Weston Embedded uC-HTTP v3.01.01. Un paquete de red especialmente manipulado puede provocar la ejecuci\u00f3n de c\u00f3digo. Un atacante puede enviar un paquete malicioso para desencadenar esta vulnerabilidad.\"}],\"affected\":[{\"source\":\"talos-cna@cisco.com\",\"affectedData\":[{\"vendor\":\"Silicon Labs\",\"product\":\"Gecko Platform\",\"versions\":[{\"version\":\"4.3.1.0\",\"status\":\"affected\"}]},{\"vendor\":\"Weston Embedded\",\"product\":\"Cesium NET\",\"versions\":[{\"version\":\"3.07.01\",\"status\":\"affected\"}]},{\"vendor\":\"Weston Embedded\",\"product\":\"uC-HTTP\",\"versions\":[{\"version\":\"v3.01.01\",\"status\":\"affected\"}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"talos-cna@cisco.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H\",\"baseScore\":9.0,\"baseSeverity\":\"CRITICAL\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"HIGH\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"CHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":2.2,\"impactScore\":6.0},{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":9.8,\"baseSeverity\":\"CRITICAL\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":3.9,\"impactScore\":5.9}],\"ssvcV203\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"ssvcData\":{\"timestamp\":\"2024-09-03T14:19:39.296365Z\",\"id\":\"CVE-2023-27882\",\"options\":[{\"exploitation\":\"poc\"},{\"automatable\":\"yes\"},{\"technicalImpact\":\"total\"}],\"role\":\"CISA Coordinator\",\"version\":\"2.0.3\"}}]},\"weaknesses\":[{\"source\":\"talos-cna@cisco.com\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-122\"}]},{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-787\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:silabs:gecko_software_development_kit:4.3.1:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"90DDAC84-E71F-44E3-A5A8-D949DC1943D4\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:weston-embedded:cesium_net:3.07.01:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"44A78DFC-FD24-43A2-A4F4-76A77F46E9A5\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:weston-embedded:uc-http:3.01.01:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"6939279F-5819-4661-9050-3947010C9B71\"}]}]}],\"references\":[{\"url\":\"https://talosintelligence.com/vulnerability_reports/TALOS-2023-1733\",\"source\":\"talos-cna@cisco.com\",\"tags\":[\"Exploit\",\"Technical Description\",\"Third Party Advisory\"]},{\"url\":\"https://talosintelligence.com/vulnerability_reports/TALOS-2023-1733\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Exploit\",\"Technical Description\",\"Third Party Advisory\"]},{\"url\":\"https://www.talosintelligence.com/vulnerability_reports/TALOS-2023-1733\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"}]}}",
    "redhat_vex": {
      "current_release_date": "2025-05-28T23:15:15+00:00",
      "cve": "CVE-2023-27882",
      "id": "CVE-2023-27882",
      "initial_release_date": "2023-01-01T00:00:00+00:00",
      "product_status:known_not_affected": "1",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "CVE-2023-27882",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2023/cve-2023-27882.json",
      "version": "3"
    },
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CVE Program Container\", \"references\": [{\"url\": \"https://talosintelligence.com/vulnerability_reports/TALOS-2023-1733\", \"name\": \"https://talosintelligence.com/vulnerability_reports/TALOS-2023-1733\", \"tags\": [\"x_transferred\"]}], \"providerMetadata\": {\"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\", \"dateUpdated\": \"2024-08-02T12:23:29.948Z\"}}, {\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2023-27882\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"poc\"}, {\"Automatable\": \"yes\"}, {\"Technical Impact\": \"total\"}], \"version\": \"2.0.3\", \"timestamp\": \"2024-09-03T14:19:39.296365Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2024-09-03T14:20:00.843Z\"}}], \"cna\": {\"credits\": [{\"lang\": \"en\", \"value\": \"Discovered by Kelly Leuschner of Cisco Talos.\"}], \"metrics\": [{\"cvssV3_1\": {\"scope\": \"CHANGED\", \"version\": \"3.1\", \"baseScore\": 9, \"attackVector\": \"NETWORK\", \"baseSeverity\": \"CRITICAL\", \"vectorString\": \"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H\", \"integrityImpact\": \"HIGH\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"HIGH\", \"availabilityImpact\": \"HIGH\", \"privilegesRequired\": \"NONE\", \"confidentialityImpact\": \"HIGH\"}}], \"affected\": [{\"vendor\": \"Silicon Labs\", \"product\": \"Gecko Platform\", \"versions\": [{\"status\": \"affected\", \"version\": \"4.3.1.0\"}]}, {\"vendor\": \"Weston Embedded\", \"product\": \"Cesium NET\", \"versions\": [{\"status\": \"affected\", \"version\": \"3.07.01\"}]}, {\"vendor\": \"Weston Embedded\", \"product\": \"uC-HTTP\", \"versions\": [{\"status\": \"affected\", \"version\": \"v3.01.01\"}]}], \"references\": [{\"url\": \"https://talosintelligence.com/vulnerability_reports/TALOS-2023-1733\", \"name\": \"https://talosintelligence.com/vulnerability_reports/TALOS-2023-1733\"}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"A heap-based buffer overflow vulnerability exists in the HTTP Server form boundary functionality of Weston Embedded uC-HTTP v3.01.01. A specially crafted network packet can lead to code execution. An attacker can send a malicious packet to trigger this vulnerability.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-122\", \"description\": \"CWE-122: Heap-based Buffer Overflow\"}]}], \"providerMetadata\": {\"orgId\": \"b86d76f8-0f8a-4a96-a78d-d8abfc7fc29b\", \"shortName\": \"talos\", \"dateUpdated\": \"2023-11-14T18:00:07.947Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2023-27882\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2024-09-03T14:20:08.305Z\", \"dateReserved\": \"2023-03-22T15:09:15.580Z\", \"assignerOrgId\": \"b86d76f8-0f8a-4a96-a78d-d8abfc7fc29b\", \"datePublished\": \"2023-11-14T09:14:52.532Z\", \"assignerShortName\": \"talos\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.


Loading…

Loading…

Loading…

Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

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…

Detection rules are retrieved from Rulezet.

Loading…

Loading…

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.


Loading…