CVE & CISA-KEV CatalogNVD
CVE-2026-21530
HIGH6.7
CVSS v3
Description
Double free in Windows Rich Text Edit allows an authorized attacker to elevate privileges locally.
CVSS v3 Vector
Exploitability
Attack VectorLocal
Attack ComplexityHigh
Privileges RequiredLow
User InteractionRequired
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
Exploit Intelligence
0.32%probability of exploitation in 30 days
24thpercentile
Low risk: more likely to be exploited than 24% of all known CVEs.
References
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Start freeThis product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-05-14.