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CVE-2026-21219 (GCVE-0-2026-21219)

Vulnerability from cvelistv5 – Published: 2026-01-13 17:56 – Updated: 2026-07-30 20:47
VLAI
Title
Inbox COM Objects (Global Memory) Remote Code Execution Vulnerability
Summary
Use after free in Inbox COM Objects allows an unauthorized attacker to execute code locally.
Severity
7 (High)
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-01-14 04:56 UTC
CWE
Assigner
References
Impacted products
Vendor Product Version CPE status
Microsoft Windows SDK Affected: 26100 , < 10.0.26100.7463 (custom)
    cpe:2.3:a:microsoft:.windows_sdk:*:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2026-01-13 16:00
Show details on NVD website
To clipboard 

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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.


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