CVE•Published 2026-09-03•Modified 2026-09-08•1 article on news•5 live references•NVD data
CVE-2026-80098Microsoft · Copilot_studio
Vulnerability data via NVD (ingested)
CVSS v3.1
9.3
CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:H/A:N
EPSS percentile
22
Exploit Prediction Scoring System · top 78% of all CVEs
Weaknesses (CWE)
Description
Improper verification of cryptographic signature in Copilot Studio allows an unauthorized attacker to elevate privileges over a network.
Timeline
Published 2026-09-03
Modified 2026-09-08
External references
Search for exposed instances
Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).
Shodan · vuln tag0 hosts
vuln:CVE-2026-80098Hosts Shodan has explicitly fingerprinted as vulnerable.
Shodan · product
product:"Microsoft Copilot Studio"All exposed Microsoft Copilot Studio instances — cross-reference with the CVE's affected-version range.
Shodan · banner/body mention
http.html:"Copilot Studio"HTTP body or banner mentions "Copilot Studio" — catches deploys Shodan didn't identify as a product.
More intel sources (5)
Shodan report
vuln:CVE-2026-80098Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2026-80098Censys host search filtered to this CVE id.
grep.app
CVE-2026-80098Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2026-80098GitHub code search for direct mentions.
Google dork
"CVE-2026-80098" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.
Known PoCs on GitHub
No public proof-of-concept repositories found for CVE-2026-80098 on GitHub.