March 2026 Patch TuesdayKB5002849Normal patch window

Microsoft · KB5002849

Linked CVE review

Deploy Microsoft Microsoft Office security update KB5002849

Linked CVEs
4
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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4 of 4 linked CVEs shown
Confirmed exploitedCVSS above 9.0
CVE and descriptionSeverityExploit realityForecast and accessRemediation
CVE-2026-26107 Scheduled assessment
Microsoft Excel Remote Code Execution Vulnerability

Use after free in Microsoft Office Excel 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: 0.48% · 39.8th percentileForecast date: 2026-10-08LOCAL · LOW complexity · NONE privileges · REQUIRED user interactionWithin 7 daysHigh technical severity; prioritise exposed affected systems while verifying vendor guidance.Mitigation available. No fixed version is explicitly recorded in the structured CVE data.
CVE-2026-26108 Scheduled assessment
Microsoft Excel Remote Code Execution Vulnerability

Heap-based buffer overflow in Microsoft Office Excel 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: 0.48% · 39.8th percentileForecast date: 2026-10-08LOCAL · LOW complexity · NONE privileges · REQUIRED user interactionWithin 7 daysHigh technical severity; prioritise exposed affected systems while verifying vendor guidance.Mitigation available. No fixed version is explicitly recorded in the structured CVE data.
CVE-2026-26112 Scheduled assessment
Microsoft Excel Remote Code Execution Vulnerability

Untrusted pointer dereference in Microsoft Office Excel 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: 0.48% · 39.8th percentileForecast date: 2026-10-08LOCAL · LOW complexity · NONE privileges · REQUIRED user interactionWithin 7 daysHigh technical severity; prioritise exposed affected systems while verifying vendor guidance.Mitigation available. No fixed version is explicitly recorded in the structured CVE data.
CVE-2026-26109 Scheduled assessment
Microsoft Excel Remote Code Execution Vulnerability

Out-of-bounds read in Microsoft Office Excel 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: 0.35% · 26.5th percentileForecast date: 2026-10-08LOCAL · LOW complexity · NONE privileges · NONE user interactionWithin 7 daysHigh technical severity; prioritise exposed affected systems while verifying vendor guidance.Mitigation available. No fixed version is explicitly recorded in the structured CVE data.