CVE-2026-17206 (GCVE-0-2026-17206)
Vulnerability from cvelistv5 – Published: 2026-08-13 18:55 – Updated: 2026-08-14 03:56
VLAI
EPSS
VEX
Title
IBM i is Affected By Multiple Vulnerabilities in Host Servers
Summary
IBM i 7.6, 7.5, 7.4, and 7.3 could allow a remote attacker to execute arbitrary code due to a buffer overflow.
Severity
8.1 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-13 00:00 UTC
CWE
- CWE-787 - Out-of-bounds Write
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://www.ibm.com/support/pages/node/7283578 | vendor-advisorypatch |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| IBM | i |
Affected:
7.6
Affected: 7.5 Affected: 7.4 Affected: 7.3 cpe:2.3:a:ibm:i:7.6:*:*:*:*:*:*:* cpe:2.3:a:ibm:i:7.6.0:*:*:*:*:*:*:* cpe:2.3:a:ibm:i:7.5:*:*:*:*:*:*:* cpe:2.3:a:ibm:i:7.5.0:*:*:*:*:*:*:* cpe:2.3:a:ibm:i:7.4:*:*:*:*:*:*:* cpe:2.3:a:ibm:i:7.4.0:*:*:*:*:*:*:* cpe:2.3:a:ibm:i:7.3:*:*:*:*:*:*:* cpe:2.3:a:ibm:i:7.3.0:*:*:*:*:*:*:* |
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"value": "\u003cp\u003e\u003cstrong\u003eIBM strongly recommends addressing the vulnerability now.\u003c/strong\u003e\u003c/p\u003e\u003cp\u003e\u003cstrong\u003eHost Servers\u003c/strong\u003e\u003c/p\u003e\u003cdiv\u003e\u003ctable\u003e\u003ccolgroup\u003e\u003ccol/\u003e\u003ccol/\u003e\u003ccol/\u003e\u003c/colgroup\u003e\u003cthead\u003e\u003ctr\u003e\u003ctd\u003e\u003cstrong\u003eIBM i Release\u003c/strong\u003e\u003c/td\u003e\u003ctd\u003e\u003cstrong\u003e5770-SS1\u003cbr/\u003ePTF Number(s)\u003c/strong\u003e\u003c/td\u003e\u003ctd\u003e\u003cstrong\u003ePTF Download Link(s)\u003c/strong\u003e\u003c/td\u003e\u003c/tr\u003e\u003c/thead\u003e\u003ctbody\u003e\u003ctr\u003e\u003ctd\u003e7.6\u003c/td\u003e\u003ctd\u003eSJ11101\u003cbr/\u003eSJ11097\u003c/td\u003e\u003ctd\u003e\u003ca href=\"https://www.ibm.com/mysupport/s/fix-information?legacy=SJ11101\" rel=\"noopener noreferrer nofollow\"\u003ehttps://www.ibm.com/mysupport/s/fix-information?legacy=SJ11101\u003c/a\u003e\u003cbr/\u003e\u003ca href=\"https://www.ibm.com/mysupport/s/fix-information?legacy=SJ11097\" rel=\"noopener noreferrer nofollow\"\u003ehttps://www.ibm.com/mysupport/s/fix-information?legacy=SJ11097\u003c/a\u003e\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd\u003e7.5\u003c/td\u003e\u003ctd\u003eSJ11102\u003cbr/\u003eSJ11098\u003cbr/\u003e\u003c/td\u003e\u003ctd\u003e\u003ca href=\"https://www.ibm.com/mysupport/s/fix-information?legacy=SJ11102\" rel=\"noopener noreferrer nofollow\"\u003ehttps://www.ibm.com/mysupport/s/fix-information?legacy=SJ11102\u003c/a\u003e\u003cbr/\u003e\u003ca href=\"https://www.ibm.com/mysupport/s/fix-information?legacy=SJ11098\" rel=\"noopener noreferrer 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nofollow\"\u003ehttps://www.ibm.com/mysupport/s/fix-information?legacy=SJ11104\u00a0\u003c/a\u003e\u003cbr/\u003e\u003ca href=\"https://www.ibm.com/mysupport/s/fix-information?legacy=SJ11100\" rel=\"nofollow\"\u003ehttps://www.ibm.com/mysupport/s/fix-information?legacy=SJ11100\u003c/a\u003e\u003c/td\u003e\u003c/tr\u003e\u003c/tbody\u003e\u003c/table\u003e\u003c/div\u003e\u003cp\u003e\u003c/p\u003e\u003cp\u003e\u003cstrong\u003eDebug Server\u003c/strong\u003e\u003c/p\u003e\u003cdiv\u003e\u003ctable\u003e\u003ccolgroup\u003e\u003ccol/\u003e\u003ccol/\u003e\u003ccol/\u003e\u003c/colgroup\u003e\u003cthead\u003e\u003ctr\u003e\u003ctd\u003e\u003cstrong\u003eIBM i Release\u003c/strong\u003e\u003c/td\u003e\u003ctd\u003e\u003cstrong\u003e\u003cstrong\u003e5770-SS1\u003c/strong\u003e\u003cbr/\u003ePTF Number(s)\u003c/strong\u003e\u003c/td\u003e\u003ctd\u003e\u003cstrong\u003ePTF Download Link(s)\u003c/strong\u003e\u003c/td\u003e\u003c/tr\u003e\u003c/thead\u003e\u003ctbody\u003e\u003ctr\u003e\u003ctd\u003e7.6\u003c/td\u003e\u003ctd\u003eSJ10899\u003c/td\u003e\u003ctd\u003e\u003ca href=\"https://www.ibm.com/mysupport/s/fix-information?legacy=SJ10899\" rel=\"noopener noreferrer nofollow\"\u003ehttps://www.ibm.com/mysupport/s/fix-information?legacy=SJ10899\u003c/a\u003e\u003c/td\u003e\u003c/tr\u003e\u003c/tbody\u003e\u003c/table\u003e\u003c/div\u003e\u003cp\u003e\u003c/p\u003e\u003cp\u003e\u003cstrong\u003eTelnet\u003c/strong\u003e\u003c/p\u003e\u003cdiv\u003e\u003ctable\u003e\u003ccolgroup\u003e\u003ccol/\u003e\u003ccol/\u003e\u003ccol/\u003e\u003c/colgroup\u003e\u003cthead\u003e\u003ctr\u003e\u003ctd\u003e\u003cstrong\u003eIBM i Release\u003c/strong\u003e\u003c/td\u003e\u003ctd\u003e\u003cstrong\u003e5770-SS1\u003cbr/\u003ePTF Number(s)\u003c/strong\u003e\u003c/td\u003e\u003ctd\u003e\u003cstrong\u003ePTF Download Link(s)\u003c/strong\u003e\u003c/td\u003e\u003c/tr\u003e\u003c/thead\u003e\u003ctbody\u003e\u003ctr\u003e\u003ctd\u003e7.6\u003c/td\u003e\u003ctd\u003eSJ11022\u003c/td\u003e\u003ctd\u003e\u003ca href=\"https://www.ibm.com/mysupport/s/fix-information?legacy=SJ11022\" rel=\"noopener noreferrer nofollow\"\u003ehttps://www.ibm.com/mysupport/s/fix-information?legacy=SJ11022\u003c/a\u003e\u003c/td\u003e\u003c/tr\u003e\u003c/tbody\u003e\u003c/table\u003e\u003c/div\u003e\u003cp\u003e\u003c/p\u003e\u003cp\u003e\u003cstrong\u003eDRDA/DDM\u003c/strong\u003e\u003c/p\u003e\u003cdiv\u003e\u003ctable\u003e\u003ccolgroup\u003e\u003ccol/\u003e\u003ccol/\u003e\u003ccol/\u003e\u003c/colgroup\u003e\u003cthead\u003e\u003ctr\u003e\u003ctd\u003e\u003cstrong\u003eIBM i Release\u003c/strong\u003e\u003c/td\u003e\u003ctd\u003e\u003cstrong\u003e5770-SS1\u003cbr/\u003ePTF Number(s)\u003c/strong\u003e\u003c/td\u003e\u003ctd\u003e\u003cstrong\u003ePTF Download Link(s)\u003c/strong\u003e\u003c/td\u003e\u003c/tr\u003e\u003c/thead\u003e\u003ctbody\u003e\u003ctr\u003e\u003ctd\u003e7.6\u003c/td\u003e\u003ctd\u003eSJ10848\u003c/td\u003e\u003ctd\u003e\u003ca href=\"https://www.ibm.com/mysupport/s/fix-information?legacy=SJ10848\" rel=\"nofollow\"\u003ehttps://www.ibm.com/mysupport/s/fix-information?legacy=SJ10848\u003c/a\u003e\u003c/td\u003e\u003c/tr\u003e\u003c/tbody\u003e\u003c/table\u003e\u003c/div\u003e\u003cp\u003e\u003c/p\u003e\u003cp\u003eIBM recommends users running unsupported versions of affected products upgrade to a supported and fixed version of affected products.\u003c/p\u003e"
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"value": "IBM strongly recommends addressing the vulnerability now.\n\n\n\nHost Servers\n\nIBM i Release5770-SS1\nPTF Number(s)PTF Download Link(s)7.6SJ11101\nSJ11097 https://www.ibm.com/mysupport/s/fix-information?legacy=SJ11101 \n https://www.ibm.com/mysupport/s/fix-information?legacy=SJ11097 7.5SJ11102\nSJ11098\n https://www.ibm.com/mysupport/s/fix-information?legacy=SJ11102 \n https://www.ibm.com/mysupport/s/fix-information?legacy=SJ11098 7.4SJ11103\nSJ11099\n https://www.ibm.com/mysupport/s/fix-information?legacy=SJ11103 \n https://www.ibm.com/mysupport/s/fix-information?legacy=SJ11099 7.3SJ11104\nSJ11100\n https://www.ibm.com/mysupport/s/fix-information?legacy=SJ11100 \n\n\n\n\n\n\n\nDebug Server\n\nIBM i Release5770-SS1\nPTF Number(s)PTF Download Link(s)7.6SJ10899 https://www.ibm.com/mysupport/s/fix-information?legacy=SJ10899 \n\n\n\n\n\n\n\nTelnet\n\nIBM i Release5770-SS1\nPTF Number(s)PTF Download Link(s)7.6SJ11022 https://www.ibm.com/mysupport/s/fix-information?legacy=SJ11022 \n\n\n\n\n\n\n\nDRDA/DDM\n\nIBM i Release5770-SS1\nPTF Number(s)PTF Download Link(s)7.6SJ10848 https://www.ibm.com/mysupport/s/fix-information?legacy=SJ10848 \n\n\n\n\n\n\n\nIBM recommends users running unsupported versions of affected products upgrade to a supported and fixed version of affected products."
}
],
"title": "IBM i is Affected By Multiple Vulnerabilities in Host Servers"
}
},
"cveMetadata": {
"assignerOrgId": "9a959283-ebb5-44b6-b705-dcc2bbced522",
"assignerShortName": "ibm",
"cveId": "CVE-2026-17206",
"datePublished": "2026-08-13T18:55:41.032Z",
"dateReserved": "2026-07-24T19:28:05.244Z",
"dateUpdated": "2026-08-14T03:56:03.008Z",
"state": "PUBLISHED"
},
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"nvd": "{\"cve\":{\"id\":\"CVE-2026-17206\",\"sourceIdentifier\":\"psirt@us.ibm.com\",\"published\":\"2026-08-13T20:17:18.780\",\"lastModified\":\"2026-08-14T05:16:58.253\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"IBM i 7.6, 7.5, 7.4, and 7.3 could allow a remote attacker to execute arbitrary code due to a buffer overflow.\"}],\"affected\":[{\"source\":\"psirt@us.ibm.com\",\"affectedData\":[{\"vendor\":\"IBM\",\"product\":\"i\",\"cpes\":[\"cpe:2.3:a:ibm:i:7.6:*:*:*:*:*:*:*\",\"cpe:2.3:a:ibm:i:7.6.0:*:*:*:*:*:*:*\",\"cpe:2.3:a:ibm:i:7.5:*:*:*:*:*:*:*\",\"cpe:2.3:a:ibm:i:7.5.0:*:*:*:*:*:*:*\",\"cpe:2.3:a:ibm:i:7.4:*:*:*:*:*:*:*\",\"cpe:2.3:a:ibm:i:7.4.0:*:*:*:*:*:*:*\",\"cpe:2.3:a:ibm:i:7.3:*:*:*:*:*:*:*\",\"cpe:2.3:a:ibm:i:7.3.0:*:*:*:*:*:*:*\"],\"versions\":[{\"version\":\"7.6\",\"status\":\"affected\"},{\"version\":\"7.5\",\"status\":\"affected\"},{\"version\":\"7.4\",\"status\":\"affected\"},{\"version\":\"7.3\",\"status\":\"affected\"}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"psirt@us.ibm.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":8.1,\"baseSeverity\":\"HIGH\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"HIGH\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":2.2,\"impactScore\":5.9}],\"ssvcV203\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"ssvcData\":{\"timestamp\":\"2026-08-13T00:00:00+00:00\",\"id\":\"CVE-2026-17206\",\"options\":[{\"exploitation\":\"none\"},{\"automatable\":\"no\"},{\"technicalImpact\":\"total\"}],\"role\":\"CISA Coordinator\",\"version\":\"2.0.3\"}}]},\"weaknesses\":[{\"source\":\"psirt@us.ibm.com\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-787\"}]}],\"references\":[{\"url\":\"https://www.ibm.com/support/pages/node/7283578\",\"source\":\"psirt@us.ibm.com\"}]}}"
}
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
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.
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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.
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.
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