Privileged code execution via CLI buffer overflows
Published Jul 21, 2026 · Updated Jul 21, 2026
Buffer overflows in affected AOS-CX releases allow remote authenticated users with high privileges to execute privileged operating-system code. HPE has not disclosed the affected command, parser, buffer, or unchecked copy operation, so the specific malformed CLI input remains unknown. Exploitation requires network access and high-privileged credentials; success crosses from the switch CLI into privileged code execution on the underlying operating system.
Summary
What happened
Buffer overflows in affected AOS-CX releases allow remote authenticated users with high privileges to execute privileged operating-system code. HPE has not disclosed the affected command, parser, buffer, or unchecked copy operation, so the specific malformed CLI input remains unknown. Exploitation requires network access and high-privileged credentials; success crosses from the switch CLI into privileged code execution on the underlying operating system.
The record
- CVE
- CVE-2026-63453
- Published
- Jul 21, 2026
- Updated
- Jul 21, 2026
- Vendor
- Hewlett Packard Enterprise (HPE)
- Product
- AOS-CX
- Classifications
- CWE-120, T1210
- Attack vector
- network
- Privileges
- admin
Timeline
How it unfolded
- Jul 21, 2026CVE publishedPublication date reported by the CVE source.
- Jul 21, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=10.13.0000 <=10.13.1170
- Affected versionversion=10.16.0000 <=10.16.1050
- Affected versionversion=10.17.0000 <=10.17.1020
- Affected versionversion=10.18.0000 <10.18.0001
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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