Unauthenticated service interruption via crafted packet overflow
Published Sep 1, 2026 · Updated Sep 2, 2026
Buffer overflows in an underlying AOS-CX service allow unauthenticated remote attackers to interrupt the operating system with crafted packets. CISA maps the flaw to unchecked buffer copying, but the affected service, packet fields, and vulnerable routines remain undisclosed. The attacker must reach an adjacent network, and exploitation disrupts normal switch operation without reported data disclosure or modification.
Summary
What happened
Buffer overflows in an underlying AOS-CX service allow unauthenticated remote attackers to interrupt the operating system with crafted packets. CISA maps the flaw to unchecked buffer copying, but the affected service, packet fields, and vulnerable routines remain undisclosed. The attacker must reach an adjacent network, and exploitation disrupts normal switch operation without reported data disclosure or modification.
The record
- CVE
- CVE-2026-73772
- Published
- Sep 1, 2026
- Updated
- Sep 2, 2026
- Vendor
- Hewlett Packard Enterprise (HPE)
- Product
- AOS-CX
- Classifications
- CWE-120, T1499
- Attack vector
- adjacent
- Privileges
- unauthenticated
Timeline
How it unfolded
- Sep 1, 2026CVE publishedPublication date reported by the CVE source.
- Sep 2, 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=10.10.0000 <=10.10.1180
- Affected versionversion=10.13.0000 <=10.13.1180
- Affected versionversion=10.16.0000 <=10.16.1051
- Affected versionversion=10.17.0000 <=10.17.1021
- 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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