CVE-2026-76721
Unauthenticated Buffer Overflow Vulnerability leads to Remote Code Execution in HPE Networking Instant ON APs
Description
Buffer overflow vulnerability exists in the affected interface of HPE Networking Instant ON that could allow an unauthenticated remote attacker to run arbitrary code on the underlying host. Successful exploitation could allow an attacker to execute arbitrary code as a privileged user on the underlying operating system.
INFO
Published Date :
Sept. 29, 2026, 8:17 p.m.
Last Modified :
Sept. 29, 2026, 8:17 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
Affected Products
The following products are affected by CVE-2026-76721
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | CRITICAL | eb103674-0d28-4225-80f8-39fb86215de0 | ||||
| CVSS 3.1 | CRITICAL | [email protected] |
Solution
- Update HPE Networking Instant ON to the latest version.
- Apply vendor-supplied security patches immediately.
- Review system logs for signs of compromise.
- Restrict network access to the affected interface.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-76721.
| URL | Resource |
|---|---|
| https://support.hpe.com/hpesc/public/docDisplay?docId=hpesbnw05150en_us&docLocale=en_US |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-76721 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-76721
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-76721 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-76721 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
New CVE Received by [email protected]
Sep. 29, 2026
Action Type Old Value New Value Added Description Buffer overflow vulnerability exists in the affected interface of HPE Networking Instant ON that could allow an unauthenticated remote attacker to run arbitrary code on the underlying host. Successful exploitation could allow an attacker to execute arbitrary code as a privileged user on the underlying operating system. Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Added Affected New affected value received. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/76xxx/CVE-2026-76721.json">CVE-2026-76721</a> Added Reference https://support.hpe.com/hpesc/public/docDisplay?docId=hpesbnw05150en_us&docLocale=en_US