CVE-2022-26376 (GCVE-0-2022-26376)

Vulnerability from cvelistv5 – Published: 2022-08-05 21:18 – Updated: 2025-04-15 18:53
VLAI
Summary
A memory corruption vulnerability exists in the httpd unescape functionality of Asuswrt prior to 3.0.0.4.386_48706 and Asuswrt-Merlin New Gen prior to 386.7.. A specially-crafted HTTP request can lead to memory corruption. An attacker can send a network request to trigger this vulnerability.
SSVC
Exploitation: poc Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-04-15 18:18 UTC
CWE
Impacted products
Vendor Product Version CPE status
Asuswrt-Merlin Asuswrt-Merlin New Gen Affected: prior to 386.7
guessed Create a notification for this product.
Date Public
2022-07-27 00:00
Show details on NVD website

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              "type": "Primary"
            }
          ],
          "ssvcV203": [
            {
              "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "ssvcData": {
                "id": "CVE-2022-26376",
                "options": [
                  {
                    "exploitation": "poc"
                  },
                  {
                    "automatable": "yes"
                  },
                  {
                    "technicalImpact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-04-15T18:18:45.679502Z",
                "version": "2.0.3"
              }
            }
          ]
        },
        "published": "2022-08-05T22:15:11.143",
        "references": [
          {
            "source": "talos-cna@cisco.com",
            "tags": [
              "Exploit",
              "Third Party Advisory"
            ],
            "url": "https://talosintelligence.com/vulnerability_reports/TALOS-2022-1511"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Exploit",
              "Third Party Advisory"
            ],
            "url": "https://talosintelligence.com/vulnerability_reports/TALOS-2022-1511"
          }
        ],
        "sourceIdentifier": "talos-cna@cisco.com",
        "vulnStatus": "Modified",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-787"
              }
            ],
            "source": "talos-cna@cisco.com",
            "type": "Secondary"
          },
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-787"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Secondary"
          }
        ]
      }
    },
    "vulnrichment": {
      "containers": {
        "adp": [
          {
            "providerMetadata": {
              "dateUpdated": "2024-08-03T05:03:32.976Z",
              "orgId": "af854a3a-2127-422b-91ae-364da2661108",
              "shortName": "CVE"
            },
            "references": [
              {
                "tags": [
                  "x_transferred"
                ],
                "url": "https://talosintelligence.com/vulnerability_reports/TALOS-2022-1511"
              }
            ],
            "title": "CVE Program Container"
          },
          {
            "metrics": [
              {
                "other": {
                  "content": {
                    "id": "CVE-2022-26376",
                    "options": [
                      {
                        "Exploitation": "poc"
                      },
                      {
                        "Automatable": "yes"
                      },
                      {
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                      }
                    ],
                    "role": "CISA Coordinator",
                    "timestamp": "2025-04-15T18:18:45.679502Z",
                    "version": "2.0.3"
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                  "type": "ssvc"
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            ],
            "providerMetadata": {
              "dateUpdated": "2025-04-15T18:18:47.140Z",
              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP"
            },
            "title": "CISA ADP Vulnrichment"
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        ],
        "cna": {
          "affected": [
            {
              "product": "Asuswrt-Merlin New Gen",
              "vendor": "Asuswrt-Merlin",
              "versions": [
                {
                  "status": "affected",
                  "version": "prior to 386.7"
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              ]
            }
          ],
          "datePublic": "2022-07-27T00:00:00.000Z",
          "descriptions": [
            {
              "lang": "en",
              "value": "A memory corruption vulnerability exists in the httpd unescape functionality of Asuswrt prior to 3.0.0.4.386_48706 and Asuswrt-Merlin New Gen prior to 386.7.. A specially-crafted HTTP request can lead to memory corruption. An attacker can send a network request to trigger this vulnerability."
            }
          ],
          "metrics": [
            {
              "cvssV3_0": {
                "attackComplexity": "LOW",
                "attackVector": "NETWORK",
                "availabilityImpact": "NONE",
                "baseScore": 5.3,
                "baseSeverity": "MEDIUM",
                "confidentialityImpact": "NONE",
                "integrityImpact": "LOW",
                "privilegesRequired": "NONE",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
                "version": "3.0"
              }
            }
          ],
          "problemTypes": [
            {
              "descriptions": [
                {
                  "cweId": "CWE-787",
                  "description": "CWE-787: Out-of-bounds Write",
                  "lang": "en",
                  "type": "CWE"
                }
              ]
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          ],
          "providerMetadata": {
            "dateUpdated": "2022-10-07T00:00:00.000Z",
            "orgId": "b86d76f8-0f8a-4a96-a78d-d8abfc7fc29b",
            "shortName": "talos"
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          "references": [
            {
              "url": "https://talosintelligence.com/vulnerability_reports/TALOS-2022-1511"
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        }
      },
      "cveMetadata": {
        "assignerOrgId": "b86d76f8-0f8a-4a96-a78d-d8abfc7fc29b",
        "assignerShortName": "talos",
        "cveId": "CVE-2022-26376",
        "datePublished": "2022-08-05T21:18:47.095Z",
        "dateReserved": "2022-04-05T00:00:00.000Z",
        "dateUpdated": "2025-04-15T18:53:55.243Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}



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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.

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Detection rules are retrieved from Rulezet.

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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.


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