CVE-2008-2636

Status: ModifiedHigh (7.8)—

The HTTP service on the Cisco Linksys WRH54G with firmware 1.01.03 allows remote attackers to cause a denial of service (management interface outage) or possibly execute arbitrary code via a URI that begins with a "/./" sequence, contains many instances of a "front_page" sequence, and ends with a ".asp" sequence.

CVSS

Version: 2.0
Vector: AV:N/AC:L/Au:N/C:N/I:N/A:C
Base score: 7.8

Exploitation probability (EPSS)

Probability of exploitation in the next 30 days: 3.40%
Percentile among all scored CVEs: 89
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 (1)

Cisco — Linksys Wrh54g Router

CWEs

CWE-20

References

Raw JSON (NVD)

Show

{
  "id": "CVE-2008-2636",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 7.8,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:C",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "LOW",
          "availabilityImpact": "COMPLETE",
          "confidentialityImpact": "NONE"
        },
        "acInsufInfo": false,
        "impactScore": 6.9,
        "baseSeverity": "HIGH",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 10,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ]
  },
  "affected": [
    {
      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2008-06-10T00:32:00.000",
  "references": [
    {
      "url": "http://secunia.com/advisories/30562",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://securityreason.com/securityalert/3929",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.securityfocus.com/archive/1/493129/100/0/threaded",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.securitytracker.com/id?1020237",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.vupen.com/english/advisories/2008/1772/references",
      "source": "cve@mitre.org"
    },
    {
      "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/42890",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://secunia.com/advisories/30562",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://securityreason.com/securityalert/3929",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securityfocus.com/archive/1/493129/100/0/threaded",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securitytracker.com/id?1020237",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.vupen.com/english/advisories/2008/1772/references",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/42890",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-20"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "The HTTP service on the Cisco Linksys WRH54G with firmware 1.01.03 allows remote attackers to cause a denial of service (management interface outage) or possibly execute arbitrary code via a URI that begins with a \"/./\" sequence, contains many instances of a \"front_page\" sequence, and ends with a \".asp\" sequence."
    },
    {
      "lang": "es",
      "value": "El servicio HTTP en Cisco Linksys WRH54G con software empotrado (firmware) 1.01.03 permite a atacantes remotos provocar una denegación de servicio (parada de la interfaz de administración) o posiblemente ejecutar código de su elección a través de una URI que comience con una secuencia \"/./\", contiene muchos casos de una secuencia \"front_page\", y finalice con una secuencia \"\".asp."
    }
  ],
  "lastModified": "2026-06-16T22:54:08.723",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:h:cisco:linksys_wrh54g_router:1.01.03:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "E009C865-EE13-46CD-8508-3825D531B061"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "cve@mitre.org"
}