FKIE_CVE-2025-0825

Vulnerability from fkie_nvd - Published: 2025-02-04 15:15 - Updated: 2026-06-17 08:27
Severity
5.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Summary
cpp-httplib version v0.17.3 through v0.18.3 fails to filter CRLF characters ("\r\n") when those are prefixed with a null byte. This enables attackers to exploit CRLF injection that could further lead to HTTP Response Splitting, XSS, and more.
References
596c5446-0ce5-4ba2-aa66-48b3b757a647https://advisory.checkmarx.net/advisory/CVE-2025-0825/Exploit, Third Party Advisory
596c5446-0ce5-4ba2-aa66-48b3b757a647https://github.com/yhirose/cpp-httplib/commit/9c36aae4b73e2b6e493f4133e4173103c9266289Patch
Impacted products
Vendor Product Version
yhirose cpp-httplib *
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "collectionURL": "https://github.com/yhirose/cpp-httplib",
          "defaultStatus": "unaffected",
          "packageName": "cpp-httplib",
          "repo": "https://github.com/yhirose/cpp-httplib",
          "versions": [
            {
              "lessThanOrEqual": "v0.18.3",
              "status": "affected",
              "version": "v0.17.3",
              "versionType": "git"
            }
          ]
        }
      ],
      "source": "596c5446-0ce5-4ba2-aa66-48b3b757a647"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:yhirose:cpp-httplib:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "D340D10D-0A48-408A-B0F2-B432EF76F5A5",
              "versionEndExcluding": "0.18.4",
              "versionStartIncluding": "0.17.3",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "cpp-httplib version v0.17.3 through v0.18.3 fails to filter CRLF characters (\"\\r\\n\") when those are prefixed with a null byte. This enables attackers to exploit CRLF injection that could further lead to HTTP Response Splitting, XSS, and more."
    },
    {
      "lang": "es",
      "value": "La versi\u00f3n v0.17.3 a v0.18.3 de cpp-httplib no filtra los caracteres CRLF (\"\\r\\n\") cuando tienen como prefijo un byte nulo. Esto permite a los atacantes aprovechar la inyecci\u00f3n CRLF que podr\u00eda conducir a la divisi\u00f3n de la respuesta HTTP, XSS y m\u00e1s."
    }
  ],
  "id": "CVE-2025-0825",
  "lastModified": "2026-06-17T08:27:12.473",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 5.3,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "LOW",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 1.4,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ],
    "cvssMetricV40": [
      {
        "cvssData": {
          "Automatable": "NOT_DEFINED",
          "Recovery": "NOT_DEFINED",
          "Safety": "NOT_DEFINED",
          "attackComplexity": "LOW",
          "attackRequirements": "NONE",
          "attackVector": "NETWORK",
          "availabilityRequirement": "NOT_DEFINED",
          "baseScore": 6.9,
          "baseSeverity": "MEDIUM",
          "confidentialityRequirement": "NOT_DEFINED",
          "exploitMaturity": "NOT_DEFINED",
          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "privilegesRequired": "NONE",
          "providerUrgency": "NOT_DEFINED",
          "subAvailabilityImpact": "NONE",
          "subConfidentialityImpact": "NONE",
          "subIntegrityImpact": "NONE",
          "userInteraction": "ACTIVE",
          "valueDensity": "NOT_DEFINED",
          "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
          "version": "4.0",
          "vulnAvailabilityImpact": "NONE",
          "vulnConfidentialityImpact": "NONE",
          "vulnIntegrityImpact": "HIGH",
          "vulnerabilityResponseEffort": "NOT_DEFINED"
        },
        "source": "596c5446-0ce5-4ba2-aa66-48b3b757a647",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2025-0825",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2025-02-04T15:41:49.353379Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2025-02-04T15:15:19.420",
  "references": [
    {
      "source": "596c5446-0ce5-4ba2-aa66-48b3b757a647",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "url": "https://advisory.checkmarx.net/advisory/CVE-2025-0825/"
    },
    {
      "source": "596c5446-0ce5-4ba2-aa66-48b3b757a647",
      "tags": [
        "Patch"
      ],
      "url": "https://github.com/yhirose/cpp-httplib/commit/9c36aae4b73e2b6e493f4133e4173103c9266289"
    }
  ],
  "sourceIdentifier": "596c5446-0ce5-4ba2-aa66-48b3b757a647",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-113"
        }
      ],
      "source": "596c5446-0ce5-4ba2-aa66-48b3b757a647",
      "type": "Secondary"
    }
  ]
}



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