IBM disclosed CVE-2026-16841, a high-severity stack buffer overflow in AIX 7.2, 7.3 and PowerVM VIOS 4.1 that could allow remote arbitrary code execution with a CVSS score of 8.8. The flaw, published August 19 2026, requires prompt patching on affected enterprise Unix and virtualization platforms. Direct NVD page not yet surfaced in searches; support page referenced in related IBM AIX CVE reports.
A stack buffer overflow enables remote code execution.
It stems from a stack buffer overflow that a remote attacker could exploit.
Enterprise users of AIX and PowerVM should treat this CVSS 8.8 remote code execution flaw as urgent given the low complexity and high impact vector.
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IBM Security Verify Access 10.0 through 10.0.9.2 and IBM Verify Identity Access 11.0 through 11.0.3 contain critical authentication bypass flaw CVE-2026-16823. The NVD rates it 9.1 and warns of remote exploitation without credentials.
IBM has fixed 40 vulnerabilities in DataPower Gateway, seven of them rated critical at CVSS 9.3 to 9.8, including remote code execution bugs and an LDAP flaw that accepts empty passwords for admin access. IBM says to upgrade to 10.5.0.23, 10.6.0.11 or 11.0.0.3.
Microsoft has disclosed CVE-2026-83947, a CVSS 7.7 HIGH spoofing vulnerability in Azure Event Grid caused by missing authorization. Microsoft says it has already fully mitigated the cloud-service flaw and customers have nothing to do.
A critical vulnerability CVE-2026-77900 affects Microsoft Azure App Service for Linux with a CVSS score of 9.8. The flaw allows an unauthenticated attacker to execute code over the network. Microsoft says it has already fully mitigated the flaw; no customer action is needed.
Microsoft Dataverse is affected by critical vulnerability CVE-2026-88131, which allows remote code execution. The flaw scores 9.8 on CVSS; Microsoft says it has already fully mitigated it and customers have nothing to patch.
