June 2026 Patch TuesdayKB5002876Normal patch window

Microsoft · KB5002876

Linked CVE review

Deploy Microsoft Microsoft Office security update KB5002876

Linked CVEs
8
Confirmed exploited
0
PoC or lab evidence
0
Maximum CVSS
8.4
Evidence is kept separate

Confirmed exploitation, public exploit material, EPSS probability and CVSS severity answer different questions. “No confirmation recorded” means the checked sources do not currently confirm exploitation. It is not proof that exploitation has not occurred.

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8 of 8 linked CVEs shown
Confirmed exploitedCVSS above 9.0
CVE and descriptionSeverityExploit realityForecast and accessRemediation
CVE-2026-44819 Scheduled assessment
Microsoft Office Remote Code Execution Vulnerability

Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code locally.

7.8 · CVSS 3.1 · HighSource: CNANo confirmation recordedNo CISA KEV match was present at the last successful refresh. This means no confirmation from that source, not proof of no exploitation.None recordedNo exploit-tagged reference or CISA SSVC proof-of-concept state is currently recorded. Research may still exist outside the structured feeds.EPSS: 0.57% · 45.5th percentileForecast date: 2026-10-08LOCAL · LOW complexity · NONE privileges · REQUIRED user interactionWithin 7 daysHigh technical severity; prioritise exposed affected systems while verifying vendor guidance.Awaiting fix. No fixed version is explicitly recorded in the structured CVE data.
CVE-2026-44824 Scheduled assessment
Microsoft Office Remote Code Execution Vulnerability

Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code locally.

7.8 · CVSS 3.1 · HighSource: CNANo confirmation recordedNo CISA KEV match was present at the last successful refresh. This means no confirmation from that source, not proof of no exploitation.None recordedNo exploit-tagged reference or CISA SSVC proof-of-concept state is currently recorded. Research may still exist outside the structured feeds.EPSS: 0.57% · 45.5th percentileForecast date: 2026-10-08LOCAL · LOW complexity · NONE privileges · REQUIRED user interactionWithin 7 daysHigh technical severity; prioritise exposed affected systems while verifying vendor guidance.Awaiting fix. No fixed version is explicitly recorded in the structured CVE data.
CVE-2026-45471 Scheduled assessment
Microsoft Word Remote Code Execution Vulnerability

Untrusted pointer dereference in Microsoft Office Word allows an unauthorized attacker to execute code locally.

7.8 · CVSS 3.1 · HighSource: CNANo confirmation recordedNo CISA KEV match was present at the last successful refresh. This means no confirmation from that source, not proof of no exploitation.None recordedNo exploit-tagged reference or CISA SSVC proof-of-concept state is currently recorded. Research may still exist outside the structured feeds.EPSS: 0.57% · 45.5th percentileForecast date: 2026-10-08LOCAL · LOW complexity · NONE privileges · REQUIRED user interactionWithin 7 daysHigh technical severity; prioritise exposed affected systems while verifying vendor guidance.Awaiting fix. No fixed version is explicitly recorded in the structured CVE data.
CVE-2026-45475 Scheduled assessment
Microsoft Office Remote Code Execution Vulnerability

Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code locally.

7.8 · CVSS 3.1 · HighSource: CNANo confirmation recordedNo CISA KEV match was present at the last successful refresh. This means no confirmation from that source, not proof of no exploitation.None recordedNo exploit-tagged reference or CISA SSVC proof-of-concept state is currently recorded. Research may still exist outside the structured feeds.EPSS: 0.57% · 45.5th percentileForecast date: 2026-10-08LOCAL · LOW complexity · NONE privileges · REQUIRED user interactionWithin 7 daysHigh technical severity; prioritise exposed affected systems while verifying vendor guidance.Awaiting fix. No fixed version is explicitly recorded in the structured CVE data.
CVE-2026-45456 Scheduled assessment
Microsoft Outlook and Word Remote Code Execution Vulnerability

Access of resource using incompatible type ('type confusion') in Microsoft Office allows an unauthorized attacker to execute code locally.

8.4 · CVSS 3.1 · HighSource: CNANo confirmation recordedNo CISA KEV match was present at the last successful refresh. This means no confirmation from that source, not proof of no exploitation.None recordedNo exploit-tagged reference or CISA SSVC proof-of-concept state is currently recorded. Research may still exist outside the structured feeds.EPSS: 0.45% · 36.8th percentileForecast date: 2026-10-08LOCAL · LOW complexity · NONE privileges · NONE user interactionWithin 7 daysHigh technical severity; prioritise exposed affected systems while verifying vendor guidance.Awaiting fix. No fixed version is explicitly recorded in the structured CVE data.
CVE-2026-45458 Scheduled assessment
Microsoft Outlook and Word Remote Code Execution Vulnerability

Use after free in Microsoft Office allows an unauthorized attacker to execute code locally.

8.4 · CVSS 3.1 · HighSource: CNANo confirmation recordedNo CISA KEV match was present at the last successful refresh. This means no confirmation from that source, not proof of no exploitation.None recordedNo exploit-tagged reference or CISA SSVC proof-of-concept state is currently recorded. Research may still exist outside the structured feeds.EPSS: 0.45% · 36.8th percentileForecast date: 2026-10-08LOCAL · LOW complexity · NONE privileges · NONE user interactionWithin 7 daysHigh technical severity; prioritise exposed affected systems while verifying vendor guidance.Awaiting fix. No fixed version is explicitly recorded in the structured CVE data.
CVE-2026-44821 Scheduled assessment
Microsoft Office Information Disclosure Vulnerability

Out-of-bounds read in Microsoft Office allows an unauthorized attacker to disclose information locally.

5.5 · CVSS 3.1 · MediumSource: CNANo confirmation recordedNo CISA KEV match was present at the last successful refresh. This means no confirmation from that source, not proof of no exploitation.None recordedNo exploit-tagged reference or CISA SSVC proof-of-concept state is currently recorded. Research may still exist outside the structured feeds.EPSS: 0.60% · 46.8th percentileForecast date: 2026-10-08LOCAL · LOW complexity · NONE privileges · REQUIRED user interactionScheduledMedium technical severity with no CISA KEV confirmation; remediate through the normal risk-based patch cycle unless local exposure raises the priority.Awaiting fix. No fixed version is explicitly recorded in the structured CVE data.
CVE-2026-45485 Scheduled assessment
Microsoft Office Information Disclosure Vulnerability

Out-of-bounds read in Microsoft Office allows an unauthorized attacker to disclose information locally.

3.3 · CVSS 3.1 · LowSource: CNANo confirmation recordedNo CISA KEV match was present at the last successful refresh. This means no confirmation from that source, not proof of no exploitation.None recordedNo exploit-tagged reference or CISA SSVC proof-of-concept state is currently recorded. Research may still exist outside the structured feeds.EPSS: 0.56% · 44.8th percentileForecast date: 2026-10-08LOCAL · LOW complexity · NONE privileges · REQUIRED user interactionScheduledLow technical severity with no CISA KEV confirmation; remediate through the normal risk-based patch cycle unless local exposure raises the priority.Awaiting fix. No fixed version is explicitly recorded in the structured CVE data.