boxscore/security
PRODUCT · referenceProducts · latest edition

Reference page — cumulative record through Thursday, October 8, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

Xstream

Product reference — Xstream by X-stream · sector: Other. Cumulative disclosure record for this product across the archive.

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Product totals

Disclosures & known-exploited
All-timeYTD
CVEs290
KEV entries10
Rate & severity
KEV/100Med CVSSMed EPSSCHML
3.48.5.152372020

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
2025-110
2025-120
2026-010
2026-020
2026-030
2026-040
2026-050
2026-060
2026-070
2026-080
2026-090
2026-100

Notable CVEs

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

Notable (ranked)
CVECVSSEPSS %ileSeverityKEVFirst seen
CVE-2021-391448.599.9HIGHYES2021-08-23
CVE-2020-262178.899.7HIGH—2020-11-16
CVE-2020-262596.899.7MEDIUM—2020-12-16
CVE-2021-213519.199.6CRITICAL—2021-03-22
CVE-2020-262587.799.6HIGH—2020-12-16
CVE-2021-213417.599.6HIGH—2021-03-22
CVE-2021-295058.899.5HIGH—2021-05-28
CVE-2021-213469.899.5CRITICAL—2021-03-22
CVE-2021-213449.899.5CRITICAL—2021-03-22
CVE-2021-213459.999.4CRITICAL—2021-03-22
CVE-2021-213429.198.9CRITICAL—2021-03-22
CVE-2021-213498.698.8HIGH—2021-03-22
CVE-2021-213437.598.8HIGH—2021-03-22
CVE-2021-391418.596.8HIGH—2021-08-23
CVE-2021-213509.896.7CRITICAL—2021-03-22

Recent CVEs

Most recently seen
CVECVSSEPSS %ileSeverityKEVFirst seen
CVE-2021-391548.591.6HIGH—2021-08-23
CVE-2021-391458.590.4HIGH—2021-08-23
CVE-2021-391498.591.6HIGH—2021-08-23
CVE-2021-391488.591.6HIGH—2021-08-23
CVE-2021-391538.591.2HIGH—2021-08-23
CVE-2021-391518.591.6HIGH—2021-08-23
CVE-2021-391468.596.5HIGH—2021-08-23
CVE-2021-391528.595.9HIGH—2021-08-23
CVE-2021-391418.596.8HIGH—2021-08-23
CVE-2021-391508.588.6HIGH—2021-08-23
CVE-2021-391478.591.6HIGH—2021-08-23
CVE-2021-391406.393.1MEDIUM—2021-08-23
CVE-2021-391398.891.3HIGH—2021-08-23
CVE-2021-391448.599.9HIGHYES2021-08-23
CVE-2021-295058.899.5HIGH—2021-05-28

KEV entries

CISA Known Exploited Vulnerabilities (newest addition first)
CVEKEV addedCVSSEPSS %ileSeverity
CVE-2021-391442023-03-108.599.9HIGH

Related

Vendor: X-stream — 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.