CVE-2001-0741

Status: ModifiedLow (2.1)—Exploit

Severity2.1Low · CVSS 2.0

Exploitation probability1.33 %higher than 71% of CVEs

Active exploitationNonot in the CISA catalog

Public exploitAvailablePublished on Exploit-DB

Cisco Hot Standby Routing Protocol (HSRP) allows local attackers to cause a denial of service by spoofing HSRP packets.

CVSS

Base score: 2.1
Version: 2.0
Vector: AV:L/AC:L/Au:N/C:N/I:N/A:P

Exploitation probability (EPSS)

Probability of exploitation in the next 30 days: 1.33 %
Percentile among all scored CVEs: 71
Score date: 10/20/2026

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).

Public exploits

Exploit code or detection templates are publicly available. This is not the same as confirmed active exploitation (KEV), but it raises the risk: patch with priority.

Published on Exploit-DB · Cisco HSRP - Denial of Service (5/3/2001)

Affected technologies (1)

Cisco — Hsrp

CWEs

NVD-CWE-Other

References

Show 8 references

Raw JSON (NVD)

Show

{
  "id": "CVE-2001-0741",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 2.1,
          "accessVector": "LOCAL",
          "vectorString": "AV:L/AC:L/Au:N/C:N/I:N/A:P",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "LOW",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "NONE"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "LOW",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 3.9,
        "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": "2001-10-18T04:00:00.000",
  "references": [
    {
      "url": "http://archives.neohapsis.com/archives/bugtraq/2001-05/0035.html",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.cisco.com/networkers/nw00/pres/2402.pdf",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.securityfocus.com/bid/2684",
      "tags": [
        "Exploit",
        "Vendor Advisory"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/6497",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://archives.neohapsis.com/archives/bugtraq/2001-05/0035.html",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.cisco.com/networkers/nw00/pres/2402.pdf",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securityfocus.com/bid/2684",
      "tags": [
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      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/6497",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-Other"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Cisco Hot Standby Routing Protocol (HSRP) allows local attackers to cause a denial of service by spoofing HSRP packets."
    }
  ],
  "lastModified": "2026-06-16T21:54:52.320",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:cisco:hsrp:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "8E75AEBF-D509-42B5-9EF5-67649D7E8FA5"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "cve@mitre.org"
}