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Critical

Security advisory

Type: advisorySources: OSVCVE: CVE-2017-2800

A specially crafted x509 certificate can cause a single out of bounds byte overwrite in wolfSSL through 3.10.2 resulting in potential certificate validation vulnerabilities, denial of service and possible remote code execution. In order to trigger this vulnerability, the attacker needs to supply a malicious x509 certificate to either a server or a client application using this library.

Products
Not specified
Affected versions
Not specified
Fixed versions
Not specified
CVEs
CVE-2017-2800
Confirmed fixed CVEs
Not specified
Updated in this feed
1 Nov 2026, 05:41 UTC · Revision 1

Source evidence

CVE-2017-2800

core-osv · Original source

Published 24 May 2017, 14:29 UTC

A specially crafted x509 certificate can cause a single out of bounds byte overwrite in wolfSSL through 3.10.2 resulting in potential certificate validation vulnerabilities, denial of service and possible remote code execution. In order to trigger this vulnerability, the attacker needs to supply a malicious x509 certificate to either a server or a client application using this library.

osv:CVE-2017-2800
Complete source record
{
  "id": "e6eb0eb96d82a98c2b50230bf21348ab68a9ba0622b7acdc0f276a63ffdd7e06",
  "url": "https://osv.dev/vulnerability/CVE-2017-2800",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2017-2800",
    "summary": "A specially crafted x509 certificate can cause a single out of bounds byte overwrite in wolfSSL through 3.10.2 resulting in potential certificate validation vulnerabilities, denial of service and possible remote code execution. In order to trigger this vulnerability, the attacker needs to supply a malicious x509 certificate to either a server or a client application using this library.",
    "evidence": "osv:CVE-2017-2800",
    "products": [],
    "severity": "critical",
    "structured": {
      "id": "CVE-2017-2800",
      "aliases": [
        "CVE-2017-2800"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/wolfssl/wolfssl",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "last_affected": "7da446c25aa28d860e320e109a70e1d624b5920a"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:wolfssl:wolfssl:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "3.10.2"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v3.10.2-stable",
            "v3.10.0a",
            "v3.10.0-stable",
            "v3.9.10b",
            "v3.9.10-stable",
            "v3.9.8",
            "v3.9.6w",
            "v3.9.6",
            "v3.9.1",
            "v3.9.0",
            "v3.8.0",
            "v3.7.3",
            "v3.7.1",
            "v3.7.0",
            "v3.6.9",
            "v3.6.8",
            "v3.4.6",
            "v3.4.2",
            "v3.4.0",
            "v3.3.3",
            "v3.3.0",
            "v3.2.6",
            "v3.2.4",
            "v3.2.0",
            "v2.9.4",
            "v2.9.2",
            "v2.9.1",
            "v0.5",
            "v2.9.0",
            "v2.8.6",
            "v2.8.5a",
            "v2.8.5",
            "v2.8.4",
            "v2.8.3",
            "v2.8.2",
            "v2.8.0",
            "v2.7.2",
            "v2.7.0",
            "v2.6.2",
            "v2.6.0",
            "v2.4.7",
            "v2.4.6",
            "v2.4.2",
            "v2.0.8",
            "v2.0.6",
            "v2.0.3",
            "v2.0.2",
            "v2.0rc3",
            "v2.0rc2b",
            "v2.0rc2",
            "v2.0rc1",
            "v1.9.0",
            "v1.8.8.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2017-2800.json"
          }
        }
      ],
      "modified": "2026-10-24T10:30:32.527969382Z",
      "provider": "osv",
      "references": [
        "https://talosintelligence.com/vulnerability_reports/TALOS-2017-0293",
        "https://www.exploit-db.com/exploits/41984/"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2017-2800",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 433050,
  "published_at": "2017-05-24T14:29:00.473+00:00"
}