CVE-2026-21510HIGH 8.8CISA KEVEPSS p97.7%
CVE-2026-21510Microsoft Windows Shell Protection Mechanism Failure Vulnerability
Microsoft / Windows
Description
Microsoft Windows Shell contains a protection mechanism failure vulnerability that could allow an unauthorized attacker to bypass a security feature over a network.
Scoring
| CVSS 3.1 | 8.8 (HIGH) |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
| EPSS | 25.84% probability of exploitation · percentile 97.7% · 2026-06-18T12:00:27Z |
| Published | 2026-02-10 |
| Last modified | 2026-02-11 |
CISA KEV entry
Added to KEV: 2026-02-10
Underlying weaknesses· 1
References
1
| Type | Target | Confidence | Tier |
|---|---|---|---|
| Weakness | Protection Mechanism Failurecwe-693 | 0% | live |
(incoming)1
| Type | Target | Confidence | Tier |
|---|---|---|---|
| KEVEntry | Microsoft Windows Shell Protection Mechanism Failure Vulnerabilitykev-cve-2026-21510 | 0% | live |
Related by meaning· 6
Nearest entities by semantic similarity across the cs-graph corpus.