SIPp 3.6 Local Buffer Overflow via Command-line Arguments

SIPp 3.6 and earlier contains a local buffer overflow vulnerability in command-line argument handling that allows local attackers to crash the application or execute arbitrary code. Attackers can trigger the vulnerability by supplying oversized input to the -3pcc, -i, or -log_file parameters, causing strcpy to write beyond buffer boundaries in sipp.cpp.

Problem type

Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

Affected products

Sipp

SIPp

<= 3.6 - AFFECTED

References

ExploitDB-44962

https://www.exploit-db.com/exploits/44962

exploit

Official Product Homepage

http://sipp.sourceforge.net/

product

Product Reference

https://github.com/SIPp/sipp/releases

product

VulnCheck Advisory: SIPp 3.6 Local Buffer Overflow via Command-line Arguments

https://www.vulncheck.com/advisories/sipp-local-buffer-overflow-via-command-line-arguments

third-party-advisory

JSON source

https://cveawg.mitre.org/api/cve/CVE-2018-25356

Click to expand

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  "cveMetadata": {
    "cveId": "CVE-2018-25356",
    "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
    "assignerShortName": "VulnCheck",
    "dateUpdated": "2026-05-23T18:30:55.727Z",
    "dateReserved": "2026-05-23T16:26:22.154Z",
    "datePublished": "2026-05-23T18:30:55.727Z",
    "state": "PUBLISHED"
  },
  "containers": {
    "cna": {
      "providerMetadata": {
        "orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
        "shortName": "VulnCheck",
        "dateUpdated": "2026-05-23T18:30:55.727Z"
      },
      "datePublic": "2018-06-30T00:00:00.000Z",
      "title": "SIPp 3.6 Local Buffer Overflow via Command-line Arguments",
      "descriptions": [
        {
          "lang": "en",
          "value": "SIPp 3.6 and earlier contains a local buffer overflow vulnerability in command-line argument handling that allows local attackers to crash the application or execute arbitrary code. Attackers can trigger the vulnerability by supplying oversized input to the -3pcc, -i, or -log_file parameters, causing strcpy to write beyond buffer boundaries in sipp.cpp."
        }
      ],
      "affected": [
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          "product": "SIPp",
          "versions": [
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              "status": "affected",
              "versionType": "custom",
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      "problemTypes": [
        {
          "descriptions": [
            {
              "lang": "en",
              "description": "Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')",
              "cweId": "CWE-120",
              "type": "CWE"
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          "name": "ExploitDB-44962",
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          "tags": [
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            "attackVector": "LOCAL",
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            "privilegesRequired": "NONE",
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            "scope": "UNCHANGED",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
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            "baseScore": 8.4,
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      "credits": [
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          "value": "Fakhri Zulkifli",
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