Critical severity · published Oct 6, 2026
CVE-2026-76747
Unauthenticated Buffer Overflow Vulnerabilities lead to Information Disclosure in AOS-S
9.1
CVSS
0.4%
EPSS
No
On KEV
Description
Buffer overflow vulnerabilities exist in the affected interface of AOS-S. Successful exploitation could allow an unauthenticated remote attacker to expose sensitive memory contents and cause a denial of service on the device.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 39% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AA
AOS-Switch (AOS-S) · Hewlett Packard Enterprise (HPE)
16.11.0000 through 16.11.0031 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-76747
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-76747
support.hpe.com
https://support.hpe.com/hpesc/public/docDisplay?docId=hpesbnw05156en_us&docLocale=en_US
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9.3
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Unauthenticated Adjacent Buffer Overflow Vulnerability Leading to Information Disclosure in AOS-S