Arubanetworks Sd-wan
Cisco Catalyst SD-WAN Manager Incorrect Use of Privileged APIs Vulnerability
At a glance
Actively exploited in the wild — prioritise confirming exposure.
High rather than Critical: exposure is scored at a default because we cannot see your systems or suppliers. If you run or depend on Cisco Catalyst SD-WAN Manager, treat it as Critical.
Briefing
- Do not treat uncorroborated claims as confirmed breaches.
Questions to ask IT
- Do we run Cisco Catalyst SD-WAN Manager, and which versions?
- Is any of it reachable from the internet?
- Have we checked whether it has already been used against us?
- If it is still not patched, what mitigation is in place, and what is holding the fix up?
Next steps
- Confirm exposure, mitigation status and any service interruption risk.
Vulnerability facts
Full CVE detail CVE-2026-20122- 5.4 · MediumExploitable over the network with a low-privilege account, and no one has to click or open anything. Low impact on confidentiality and integrity.CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
- Listed: attacks using it have been seen (on the catalogue since )
- Elevated attack likelihood (~25.8% in 30 days)
No technical write-up beyond these facts and the summary below yet.
Next steps
- Confirm whether affected products/versions are present and prioritise patching or mitigations
Summary
- An attacker could exploit this vulnerability by uploading a malicious file on the local file system. A successful exploit could allow the attacker to overwrite arbitrary files on the affected system and gain vmanage user privileges.
- CVE-2026-20122 is listed in known-exploited catalogue (exploitation in the wild)
- Authoritative catalogues report active exploitation of this vulnerability.
Why this matters in the UK
- Known-exploited catalogue reports exploitation in the wild
Products and services involved
- Cisco Catalyst SD-WAN Manager98% match confidence · CVE-2026-20122
Pulse
Last checked 4d ago · Recheck overdue since 5 Nov 2026, 21:06 UK time · 3 quiet checks collapsed
in the next 30 days first recorded at 24.6% (elevated likelihood signal, not confirmed exploitation).
Elevated — confirm exposure; this is a probability signal, not confirmed exploitation.
2 quiet checks hidden.
Sources
Cisco Catalyst SD-WAN Manager Incorrect Use of Privileged APIs Vulnerability
How we know
Statements extracted from sources. Higher confidence means stronger corroboration.
- ConfirmedHeadline90% confidence
Cisco Catalyst SD-WAN Manager Incorrect Use of Privileged APIs Vulnerability
- ConfirmedSummary fact75% confidence
Cisco Catalyst SD-WAN Manager contains an incorrect use of privileged APIs vulnerability due to improper file handling on the API interface of an affected system. An attacker could exploit this vulnerability by uploading a malicious file on the local file system. A successful exploit could allow the attacker to overwrite arbitrary files on the affected system and gain vmanage user privileges. Affects Cisco Catalyst SD-WAN Manger. Known ransomware campaign use: Unknown.
- ConfirmedCVE identifier95% confidence
Event involves CVE-2026-20122
- ConfirmedKnown-exploited catalogue98% confidence
CVE-2026-20122 is listed in known-exploited catalogue (exploitation in the wild)

