CVE-2026-16924

IBM AIX 7.2, and 7.3 and IBM PowerVM VIOS 4.1 could allow a remote attacker to cause a denial of service due to an improper calculation of a memory offset during IPsec decapsulation.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://www.ibm.com/support/pages/node/7283858	Patch Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:ibm:vios::::::::
	cpe:2.3:a:ibm:vios::::::::
	cpe:2.3:a:ibm:vios::::::::

Configuration 2 (hide)

OR	cpe:2.3:o:ibm:aix::::::::
	cpe:2.3:o:ibm:aix::::::::
	cpe:2.3:o:ibm:aix::::::::
	cpe:2.3:o:ibm:aix::::::::

History

No history.

Information

Published : 2026-08-20 15:17

Updated : 2026-08-24 20:52

NVD link : CVE-2026-16924

Mitre link : CVE-2026-16924

CVE.ORG link : CVE-2026-16924

JSON object : View

Products Affected

ibm

aix
vios

CWE

CWE-191

Integer Underflow (Wrap or Wraparound)

CWE-131

Incorrect Calculation of Buffer Size

{"id": "CVE-2026-16924", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-16924", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-08-20T15:52:55.461471Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "psirt@us.ibm.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 3.9}]}, "affected": [{"source": "psirt@us.ibm.com", "affectedData": [{"cpes": ["cpe:2.3:a:ibm:aix:7.2:*:*:*:*:*:*:*", "cpe:2.3:a:ibm:aix:7.2.0:*:*:*:*:*:*:*", "cpe:2.3:a:ibm:aix:7.3:*:*:*:*:*:*:*", "cpe:2.3:a:ibm:aix:7.3.0:*:*:*:*:*:*:*"], "vendor": "IBM", "product": "AIX", "versions": [{"status": "affected", "version": "7.2"}, {"status": "affected", "version": "7.3"}]}, {"cpes": ["cpe:2.3:a:ibm:powervm_vios:4.1:*:*:*:*:*:*:*", "cpe:2.3:a:ibm:powervm_vios:4.1.0:*:*:*:*:*:*:*"], "vendor": "IBM", "product": "PowerVM VIOS", "versions": [{"status": "affected", "version": "4.1"}]}]}], "published": "2026-08-20T15:17:28.607", "references": [{"url": "https://www.ibm.com/support/pages/node/7283858", "tags": ["Patch", "Vendor Advisory"], "source": "psirt@us.ibm.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "psirt@us.ibm.com", "description": [{"lang": "en", "value": "CWE-191"}]}, {"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-131"}]}], "descriptions": [{"lang": "en", "value": "IBM AIX 7.2, and 7.3 and IBM PowerVM VIOS 4.1 could allow a remote attacker to cause a denial of service due to an improper calculation of a memory offset during IPsec decapsulation."}], "lastModified": "2026-08-24T20:52:52.513", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:ibm:vios:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "4A14B743-DDD2-467F-90E7-3431CE35F835", "versionEndExcluding": "4.1.0.50", "versionStartIncluding": "4.1.0"}, {"criteria": "cpe:2.3:a:ibm:vios:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "37B446F0-EE99-42EA-99EE-80E517FDCB78", "versionEndExcluding": "4.1.1.30", "versionStartIncluding": "4.1.1.0"}, {"criteria": "cpe:2.3:a:ibm:vios:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "6245F535-1896-4CC5-8EC9-89C8EF455B8C", "versionEndExcluding": "4.1.2.20", "versionStartIncluding": "4.1.2.0"}], "operator": "OR"}]}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:ibm:aix:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "EB84A37D-4C98-44FC-8B9B-E14DA7C88ED5", "versionEndIncluding": "7.2.5.212", "versionStartIncluding": "7.2.5"}, {"criteria": "cpe:2.3:o:ibm:aix:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "EA55F75D-C50C-46D2-93CC-EABB8F49B03F", "versionEndIncluding": "7.3.2.5", "versionStartIncluding": "7.3.2"}, {"criteria": "cpe:2.3:o:ibm:aix:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "B4115FCC-1026-417E-8D30-237B2C90367E", "versionEndIncluding": "7.3.3.2", "versionStartIncluding": "7.3.3"}, {"criteria": "cpe:2.3:o:ibm:aix:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "340ADD53-8363-4CDA-AEEB-8DC7CB0088D5", "versionEndIncluding": "7.3.4.1", "versionStartIncluding": "7.3.4"}], "operator": "OR"}]}], "sourceIdentifier": "psirt@us.ibm.com"}