Vulnerability-Lookup

CVE-2026-49435 (GCVE-0-2026-49435)

Vulnerability from cvelistv5 – Published: 2026-08-04 18:52 – Updated: 2026-08-04 18:59

Title

Keysight IxChariot-related products stack-based buffer overflow

Summary

Keysight IxChariot Endpoint and associated products contain a stack-based buffer overflow. An unauthenticated remote attacker can send a specially crafted packet and execute arbitrary code with administrative privileges.

Severity

9.8 (Critical)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

9.3 (Critical)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · cisa-cg (v2.0.3)

Decision recorded 2026-05-29 17:58 UTC

CWE

CWE-121 - Stack-based Buffer Overflow

Assigner

cisa-cg CISA root

References

7 references

URL	Tags
https://www.keysight.com/us/en/lib/software-detai…	release-notes
https://www.keysight.com/us/en/about/quality-and-…	release-notes
https://www.keysight.com/us/en/lib/software-detai…	release-notes
https://www.keysight.com/us/en/lib/software-detai…	release-notes
https://www.keysight.com/us/en/product/IXTP-CU3-T…	release-notes
https://raw.githubusercontent.com/cisagov/CSAF/de…	third-party-advisory
https://www.cve.org/CVERecord?id=CVE-2026-49435	vdb-entry

Impacted products

5 products

Vendor	Product	Version	CPE status
Keysight	Hawkeye	Affected: 0 , < 6.0.7 (custom) Unaffected: 6.0.7	guessed
Keysight	IxChariot	Unaffected: 10.0.254 Affected: 0 , < 10.0.254 (custom)	guessed
Keysight	IxTap	Affected: 0 , < 3.13.0 (custom) Unaffected: 3.13.0	guessed
Keysight	IxProbe	Affected: 0 , < 3.13.0 (custom) Unaffected: 3.13.0	guessed
Keysight	IxByPass	Affected: 0 , < 3.13.0.69 (custom) Unaffected: 3.13.0.69	guessed

Date Public

2026-04-30 00:00

Credits

Sébastien Charbonnier, ANSSI

Show details on NVD website

JSON

To clipboard

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                "subConfidentialityImpact": "NONE",
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                "userInteraction": "NONE",
                "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
                "version": "4.0",
                "vulnAvailabilityImpact": "HIGH",
                "vulnConfidentialityImpact": "HIGH",
                "vulnIntegrityImpact": "HIGH"
              }
            },
            {
              "other": {
                "content": {
                  "id": "CVE-2026-49435",
                  "options": [
                    {
                      "Exploitation": "none"
                    },
                    {
                      "Automatable": "no"
                    },
                    {
                      "Technical Impact": "total"
                    }
                  ],
                  "role": "CISA Coordinator",
                  "timestamp": "2026-05-29T17:58:14.676221Z",
                  "version": "2.0.3"
                },
                "type": "ssvc"
              }
            }
          ],
          "problemTypes": [
            {
              "descriptions": [
                {
                  "cweId": "CWE-121",
                  "description": "CWE-121 Stack-based Buffer Overflow",
                  "lang": "en",
                  "type": "CWE"
                }
              ]
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2026-08-04T18:52:30.921Z",
            "orgId": "9119a7d8-5eab-497f-8521-727c672e3725",
            "shortName": "cisa-cg"
          },
          "references": [
            {
              "name": "url",
              "tags": [
                "release-notes"
              ],
              "url": "https://www.keysight.com/us/en/lib/software-detail/computer-software/hawkeye.html"
            },
            {
              "name": "url",
              "tags": [
                "release-notes"
              ],
              "url": "https://www.keysight.com/us/en/about/quality-and-security/security/product-and-solution-cyber-security/security-advisory-archive/security-advisory--ixchariot-vulnerability.html"
            },
            {
              "name": "url",
              "tags": [
                "release-notes"
              ],
              "url": "https://www.keysight.com/us/en/lib/software-detail/computer-software/ixchariot.html"
            },
            {
              "name": "url",
              "tags": [
                "release-notes"
              ],
              "url": "https://www.keysight.com/us/en/lib/software-detail/instrument-firmware-software/ixprobe.html"
            },
            {
              "name": "url",
              "tags": [
                "release-notes"
              ],
              "url": "https://www.keysight.com/us/en/product/IXTP-CU3-T/copper-taps---ixtp-cu3-t.html"
            },
            {
              "name": "url",
              "tags": [
                "third-party-advisory"
              ],
              "url": "https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/IT/white/2026/va-26-216-01.json"
            },
            {
              "name": "url",
              "tags": [
                "vdb-entry"
              ],
              "url": "https://www.cve.org/CVERecord?id=CVE-2026-49435"
            }
          ],
          "title": "Keysight IxChariot-related products stack-based buffer overflow"
        }
      },
      "cveMetadata": {
        "assignerOrgId": "9119a7d8-5eab-497f-8521-727c672e3725",
        "assignerShortName": "cisa-cg",
        "cveId": "CVE-2026-49435",
        "datePublished": "2026-08-04T18:52:30.921Z",
        "dateReserved": "2026-05-29T21:56:48.486Z",
        "dateUpdated": "2026-08-04T18:59:37.866Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}

FKIE_CVE-2026-49435

Vulnerability from fkie_nvd - Published: 2026-08-04 19:16 - Updated: 2026-08-26 16:52

Severity

9.8 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Summary

References

	URL	Tags
	9119a7d8-5eab-497f-8521-727c672e3725	https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/IT/white/2026/va-26-216-01.json
	9119a7d8-5eab-497f-8521-727c672e3725	https://www.cve.org/CVERecord?id=CVE-2026-49435
	9119a7d8-5eab-497f-8521-727c672e3725	https://www.keysight.com/us/en/about/quality-and-security/security/product-and-solution-cyber-security/security-advisory-archive/security-advisory--ixchariot-vulnerability.html
	9119a7d8-5eab-497f-8521-727c672e3725	https://www.keysight.com/us/en/lib/software-detail/computer-software/hawkeye.html
	9119a7d8-5eab-497f-8521-727c672e3725	https://www.keysight.com/us/en/lib/software-detail/computer-software/ixchariot.html
	9119a7d8-5eab-497f-8521-727c672e3725	https://www.keysight.com/us/en/lib/software-detail/instrument-firmware-software/ixprobe.html
	9119a7d8-5eab-497f-8521-727c672e3725	https://www.keysight.com/us/en/product/IXTP-CU3-T/copper-taps---ixtp-cu3-t.html

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unknown",
          "product": "Hawkeye",
          "vendor": "Keysight",
          "versions": [
            {
              "lessThan": "6.0.7",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            },
            {
              "status": "unaffected",
              "version": "6.0.7"
            }
          ]
        },
        {
          "defaultStatus": "unknown",
          "product": "IxChariot",
          "vendor": "Keysight",
          "versions": [
            {
              "status": "unaffected",
              "version": "10.0.254"
            },
            {
              "lessThan": "10.0.254",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        },
        {
          "defaultStatus": "unknown",
          "product": "IxTap",
          "vendor": "Keysight",
          "versions": [
            {
              "lessThan": "3.13.0",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            },
            {
              "status": "unaffected",
              "version": "3.13.0"
            }
          ]
        },
        {
          "defaultStatus": "unknown",
          "product": "IxProbe",
          "vendor": "Keysight",
          "versions": [
            {
              "lessThan": "3.13.0",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            },
            {
              "status": "unaffected",
              "version": "3.13.0"
            }
          ]
        },
        {
          "defaultStatus": "unknown",
          "product": "IxByPass",
          "vendor": "Keysight",
          "versions": [
            {
              "lessThan": "3.13.0.69",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            },
            {
              "status": "unaffected",
              "version": "3.13.0.69"
            }
          ]
        }
      ],
      "source": "9119a7d8-5eab-497f-8521-727c672e3725"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Keysight IxChariot Endpoint and associated products contain a stack-based buffer overflow. An unauthenticated remote attacker can send a specially crafted packet and execute arbitrary code with administrative privileges."
    }
  ],
  "id": "CVE-2026-49435",
  "lastModified": "2026-08-26T16:52:20.850",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 9.8,
          "baseSeverity": "CRITICAL",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 5.9,
        "source": "9119a7d8-5eab-497f-8521-727c672e3725",
        "type": "Secondary"
      }
    ],
    "cvssMetricV40": [
      {
        "cvssData": {
          "Automatable": "NOT_DEFINED",
          "Recovery": "NOT_DEFINED",
          "Safety": "NOT_DEFINED",
          "attackComplexity": "LOW",
          "attackRequirements": "NONE",
          "attackVector": "NETWORK",
          "availabilityRequirement": "NOT_DEFINED",
          "baseScore": 9.3,
          "baseSeverity": "CRITICAL",
          "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": "NONE",
          "valueDensity": "NOT_DEFINED",
          "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/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": "HIGH",
          "vulnConfidentialityImpact": "HIGH",
          "vulnIntegrityImpact": "HIGH",
          "vulnerabilityResponseEffort": "NOT_DEFINED"
        },
        "source": "9119a7d8-5eab-497f-8521-727c672e3725",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "9119a7d8-5eab-497f-8521-727c672e3725",
        "ssvcData": {
          "id": "CVE-2026-49435",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-05-29T17:58:14.676221Z",
          "version": "2.0.3"
        }
      },
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-49435",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-08-04T18:59:31.599509Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-08-04T19:16:51.810",
  "references": [
    {
      "source": "9119a7d8-5eab-497f-8521-727c672e3725",
      "url": "https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/IT/white/2026/va-26-216-01.json"
    },
    {
      "source": "9119a7d8-5eab-497f-8521-727c672e3725",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-49435"
    },
    {
      "source": "9119a7d8-5eab-497f-8521-727c672e3725",
      "url": "https://www.keysight.com/us/en/about/quality-and-security/security/product-and-solution-cyber-security/security-advisory-archive/security-advisory--ixchariot-vulnerability.html"
    },
    {
      "source": "9119a7d8-5eab-497f-8521-727c672e3725",
      "url": "https://www.keysight.com/us/en/lib/software-detail/computer-software/hawkeye.html"
    },
    {
      "source": "9119a7d8-5eab-497f-8521-727c672e3725",
      "url": "https://www.keysight.com/us/en/lib/software-detail/computer-software/ixchariot.html"
    },
    {
      "source": "9119a7d8-5eab-497f-8521-727c672e3725",
      "url": "https://www.keysight.com/us/en/lib/software-detail/instrument-firmware-software/ixprobe.html"
    },
    {
      "source": "9119a7d8-5eab-497f-8521-727c672e3725",
      "url": "https://www.keysight.com/us/en/product/IXTP-CU3-T/copper-taps---ixtp-cu3-t.html"
    }
  ],
  "sourceIdentifier": "9119a7d8-5eab-497f-8521-727c672e3725",
  "vulnStatus": "Awaiting Analysis",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-121"
        }
      ],
      "source": "9119a7d8-5eab-497f-8521-727c672e3725",
      "type": "Secondary"
    }
  ]
}

GHSA-98PG-JF9W-9QQG

Vulnerability from github – Published: 2026-08-04 21:30 – Updated: 2026-08-04 21:30

Details

Severity

9.8 (Critical)


                  
                    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

9.3 (Critical)


                  
                    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-49435"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-121"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-04T19:16:51Z",
    "severity": "CRITICAL"
  },
  "details": "Keysight IxChariot Endpoint and associated products contain a stack-based buffer overflow. An unauthenticated remote attacker can send a specially crafted packet and execute arbitrary code with administrative privileges.",
  "id": "GHSA-98pg-jf9w-9qqg",
  "modified": "2026-08-04T21:30:28Z",
  "published": "2026-08-04T21:30:28Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-49435"
    },
    {
      "type": "WEB",
      "url": "https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/IT/white/2026/va-26-216-01.json"
    },
    {
      "type": "WEB",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-49435"
    },
    {
      "type": "WEB",
      "url": "https://www.keysight.com/us/en/about/quality-and-security/security/product-and-solution-cyber-security/security-advisory-archive/security-advisory--ixchariot-vulnerability.html"
    },
    {
      "type": "WEB",
      "url": "https://www.keysight.com/us/en/lib/software-detail/computer-software/hawkeye.html"
    },
    {
      "type": "WEB",
      "url": "https://www.keysight.com/us/en/lib/software-detail/computer-software/ixchariot.html"
    },
    {
      "type": "WEB",
      "url": "https://www.keysight.com/us/en/lib/software-detail/instrument-firmware-software/ixprobe.html"
    },
    {
      "type": "WEB",
      "url": "https://www.keysight.com/us/en/product/IXTP-CU3-T/copper-taps---ixtp-cu3-t.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/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",
      "type": "CVSS_V4"
    }
  ]
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

CVE-2026-49435 (GCVE-0-2026-49435)

FKIE_CVE-2026-49435

GHSA-98PG-JF9W-9QQG

Tags

Sightings

Nomenclature

Related by attack behaviour