LOW
CVE-2026-45466
CWE-122Published: June 9, 2026· Updated: Jun 9, 2026
3.3
CVSS v3.1
EPSS:0.05%probability of exploitation in 30 daysPercentile:17.1th
Official Description
Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to disclose information locally.
Technical Analysis
CVE-2026-45466 requires local access, meaning attackers must already have a foothold on the target system.
Exploitation does not require any privileges, though user interaction (Required) is needed, which slightly reduces the risk of mass automated attacks.
CVSS v3.1 Vector Breakdown
Exploitability
Attack VectorLocal
Attack ComplexityLow
Privileges Req.None
User InteractionRequired
ScopeUnchanged
Impact
ConfidentialityLow
IntegrityNone
AvailabilityNone
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
Affected Vendors & Products
Mentioned vendors (from description):
Microsoft
CPE data not yet available in NVD for this CVE.
Exploit & PoC Resources
NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
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GitHub PoC Search
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Rapid7 / Metasploit
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PacketStorm
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NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
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All References (1)
Quick Facts
CVE IDCVE-2026-45466
CVSS Score3.3 / 10
SeverityLOW
WeaknessCWE-122
CISA KEVNo
EPSS (30d)0.05%
PublishedJun 9, 2026
Related CVEs (CWE-122)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2026-45466 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.