EUVD-2026-29644
Heap-based Buffer Overflow (CWE-122)
GHSA-qxwr-vc23-g88h
7.8
CVSS 3.1 · NVD
Temporal: 6.8
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Severity by source
NVD
PRIMARY
7.8
HIGH
AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
ENISA EUVD
HIGH
qualitative
CIRCL (temporal)
6.8
MEDIUM
cvss
Primary rating from NVD.
CVSS VectorNVD
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Lifecycle Timeline
1
CVE Published
May 12, 2026 - 16:59 nvd
HIGH 7.8
DescriptionCVE.org
Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
Analysis
Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
Same weakness CWE-122 – Heap-based Buffer Overflow
View allSame technique Heap Overflow
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External POC / Exploit Code
Leaving vuln.today
Destination URL
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Verify the source reputation and cross-reference with known databases (Exploit-DB, GitHub Security).