CVE-2026-115484 (GCVE-0-2026-115484)
Vulnerability from cvelistv5
Published
2026-10-23 00:16
Modified
2026-10-26 14:30
CWE
Summary
A flaw was found in the iscsiuio component of open-iscsi. The DHCPv4 option parser incorrectly calculates the length of the options data, causing it to read beyond the allocated buffer into adjacent heap memory. An attacker on the same network segment can send a crafted DHCP response to crash the daemon or corrupt its network configuration.
References
Impacted products
Vendor Product Version
Red Hat Red Hat Enterprise Linux 10     cpe:/o:redhat:enterprise_linux:10
Create a notification for this product.
Show details on NVD website


{
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          "cpes": [
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          ],
          "defaultStatus": "affected",
          "packageName": "iscsi-initiator-utils",
          "product": "Red Hat Enterprise Linux 10",
          "vendor": "Red Hat"
        },
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          "cpes": [
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          "defaultStatus": "unaffected",
          "packageName": "iscsi-initiator-utils",
          "product": "Red Hat Enterprise Linux 6",
          "vendor": "Red Hat"
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          "cpes": [
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          "packageName": "iscsi-initiator-utils",
          "product": "Red Hat Enterprise Linux 7",
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          "cpes": [
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          "packageName": "iscsi-initiator-utils",
          "product": "Red Hat Enterprise Linux 8",
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          "cpes": [
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          "defaultStatus": "affected",
          "packageName": "iscsi-initiator-utils",
          "product": "Red Hat Enterprise Linux 9",
          "vendor": "Red Hat"
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      ],
      "credits": [
        {
          "lang": "en",
          "value": "Red Hat would like to thank Tristan Madani (Talence Security) for reporting this issue."
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      ],
      "datePublic": "2026-10-20T00:00:00.000Z",
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        }
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            "attackVector": "ADJACENT_NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.6,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "LOW",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H",
            "version": "3.1"
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              "description": "Out-of-bounds Read",
              "lang": "en",
              "type": "CWE"
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      "providerMetadata": {
        "dateUpdated": "2026-10-26T14:30:54.524Z",
        "orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
        "shortName": "redhat"
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            "x_refsource_REDHAT"
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          "url": "https://access.redhat.com/security/cve/CVE-2026-115484"
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          "value": "Reported to Red Hat."
        },
        {
          "lang": "en",
          "time": "2026-10-20T00:00:00.000Z",
          "value": "Made public."
        }
      ],
      "title": "Open-iscsi: open-iscsi: dhcpv4 option parser heap out-of-bounds read in iscsiuio parse_msg",
      "workarounds": [
        {
          "lang": "en",
          "value": "Restrict untrusted systems from the L2 broadcast domain where iscsiuio-managed interfaces operate. If IPv4 DHCP is not required for iSCSI boot, configure static IP addressing. Where DHCP must remain enabled, limit DHCP/BOOTP traffic so only trusted infrastructure can reach the affected host."
        }
      ],
      "x_generator": {
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  },
  "cveMetadata": {
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    "datePublished": "2026-10-23T00:16:28.943Z",
    "dateReserved": "2026-10-22T15:15:31.504Z",
    "dateUpdated": "2026-10-26T14:30:54.524Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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