boxscore/security
PRODUCT · referenceProducts · latest edition

Reference page — cumulative record through Wednesday, August 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

Office Online Server

Product reference — Office Online Server by Microsoft · sector: Operating Systems & Platforms. Cumulative disclosure record for this product across the archive.

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Product totals

Disclosures & known-exploited
All-timeYTD
CVEs8279
KEV entries00
Rate & severity
KEV/100Med CVSSMed EPSSCHML
0.07.8.0033066151

KEV/100 = KEV entries ÷ CVEs × 100. Med CVSS / Med EPSS are medians over this product's disclosures. C/H/M/L = disclosures by CVSS severity band.

Monthly disclosures

Trend (by first-seen month, full archive): ▂▁▁▁▁▁▁▁▁▂▂▁▂▂▂█▆

Last 12 months (new CVEs by first-seen day)
MonthNew CVEs
2025-090
2025-100
2025-110
2025-120
2026-013
2026-023
2026-030
2026-045
2026-053
2026-067
2026-0733
2026-0825

Notable CVEs

Ranked by the published formula: KEV → EPSS → CVSS → CVE ID.

Notable (ranked)
CVECVSSEPSS %ileSeverityKEVFirst seen
CVE-2025-277517.882.5HIGH—2025-04-08
CVE-2026-703276.555.4MEDIUM—2026-08-11
CVE-2026-703286.555.4MEDIUM—2026-08-11
CVE-2025-277467.854.6HIGH—2025-04-08
CVE-2025-266427.852.5HIGH—2025-04-08
CVE-2026-454554.347.4MEDIUM—2026-06-09
CVE-2026-550546.547.2MEDIUM—2026-07-14
CVE-2026-209557.846.5HIGH—2026-01-13
CVE-2026-212585.545.9MEDIUM—2026-02-10
CVE-2026-212615.545.9MEDIUM—2026-02-10
CVE-2026-212597.842.2HIGH—2026-02-10
CVE-2026-448228.241.9HIGH—2026-06-09
CVE-2026-209577.838.7HIGH—2026-01-13
CVE-2026-485805.538.2MEDIUM—2026-07-14
CVE-2026-550465.538.2MEDIUM—2026-07-14

Recent CVEs

Most recently seen
CVECVSSEPSS %ileSeverityKEVFirst seen
CVE-2026-703286.555.4MEDIUM—2026-08-11
CVE-2026-703276.555.4MEDIUM—2026-08-11
CVE-2026-688157.823.0HIGH—2026-08-11
CVE-2026-688177.833.8HIGH—2026-08-11
CVE-2026-688107.823.0HIGH—2026-08-11
CVE-2026-688147.833.8HIGH—2026-08-11
CVE-2026-688167.827.2HIGH—2026-08-11
CVE-2026-688117.823.0HIGH—2026-08-11
CVE-2026-688127.833.8HIGH—2026-08-11
CVE-2026-688067.832.6HIGH—2026-08-11
CVE-2026-688085.527.6MEDIUM—2026-08-11
CVE-2026-688037.823.0HIGH—2026-08-11
CVE-2026-688077.823.0HIGH—2026-08-11
CVE-2026-687995.527.6MEDIUM—2026-08-11
CVE-2026-688057.825.5HIGH—2026-08-11

KEV entries

No entries in the CISA KEV catalog.

Related

Vendor: Microsoft — all products and the full vendor record.

Methodology

A product is a (vendor, product) pair as named in the affected-product data. Rate statistics are arithmetic over published figures. Counts key to first-seen day. Raw counts are not comparable across products; this is a reference page assembled from the public record, not a ranking by our judgment.

Sources. CVE Program (cvelistV5), NVD (NIST), CISA KEV, FIRST EPSS.