What is CVE-2026-73780?
A vulnerability in the web-based management interface of AOS-CX switches exposes some sessions to a lack of Cross-Site Request Forgery (CSRF) protection. This could allow a remote unauthenticated attacker to execute arbitrary input against the affected interface if the attacker can convince an authenticated user of the interface to interact with a specially crafted URL.
The record classifies CVE-2026-73780 under weakness class CWE-352. Its CVSS v3 base vector states that the flaw is reachable remotely over the network, needs no prior authentication, needs a user to take an action first, and has high impact on confidentiality, integrity, availability. 1 affected-product entry is recorded, across 1 vendor, listed below. The identifier was first published 54 days ago.
Severity and exploitation probability
- CVSS v3.1 base score
- 8.3 — HIGH
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H - EPSS (FIRST)
- 0.1% probability of exploitation in the next 30 days, higher than 8.8% of all scored CVEs
- CISA KEV
- Not listed in the CISA Known Exploited Vulnerabilities catalog
- Threadlinqs priority
- 4.5/10 — a Threadlinqs composite of the CVSS base score, the EPSS percentile and public exploit availability
- Published
- 2026-09-01, last modified 2026-09-03
Is CVE-2026-73780 being exploited?
It currently carries a trending score of 27 in the Threadlinqs vulnerability feed.
Affected products and versions
- Hewlett Packard Enterprise (HPE): AOS-CX
How to fix CVE-2026-73780
Vendor advisory: https://support.hpe.com/hpesc/public/docDisplay?docId=hpesbnw05134en_us&docLocale=en_US. Apply the vendor fix referenced above to every affected product listed in this record, then confirm the running version against the vendor advisory.
Threat activity tracking CVE-2026-73780
1 tracked threat in the Threadlinqs corpus references CVE-2026-73780, either in the campaign’s CVE list or as an indicator on the campaign record.
Sources
Enriched from CVE.org, NVD, FIRST EPSS, GitHub Security Advisories. Last verified by Threadlinqs on . This product uses the NVD API but is not endorsed or certified by the NVD.