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.
Product reference — Firefox by Mozilla · sector: Open Source Ecosystems. Cumulative disclosure record for this product across the archive.
| All-time | YTD | |
|---|---|---|
| CVEs | 196 | 175 |
| KEV entries | 5 | 0 |
| KEV/100 | Med CVSS | Med EPSS | C | H | M | L |
|---|---|---|---|---|---|---|
| 2.6 | 8.8 | .0028 | 67 | 67 | 38 | 0 |
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.
Trend (by first-seen month, full archive): ▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▂▁▁▁▁▁▁▁▁▁▂▆█▇
| Month | New CVEs |
|---|---|
| 2025-09 | 3 |
| 2025-10 | 1 |
| 2025-11 | 0 |
| 2025-12 | 0 |
| 2026-01 | 0 |
| 2026-02 | 0 |
| 2026-03 | 0 |
| 2026-04 | 0 |
| 2026-05 | 5 |
| 2026-06 | 45 |
| 2026-07 | 66 |
| 2026-08 | 59 |
Ranked by the published formula: KEV → EPSS → CVSS → CVE ID.
| CVE | CVSS | EPSS %ile | Severity | KEV | First seen |
|---|---|---|---|---|---|
| CVE-2015-4495 | — | 99.3 | — | YES | 2022-05-25 |
| CVE-2024-9680 | 9.8 | 97.6 | CRITICAL | YES | 2024-10-15 |
| CVE-2022-26485 | — | 96.2 | — | YES | 2022-03-07 |
| CVE-2013-1675 | — | 93.4 | — | YES | 2022-03-03 |
| CVE-2022-26486 | — | 82.3 | — | YES | 2022-03-07 |
| CVE-2026-10702 | 4.3 | 51.1 | MEDIUM | — | 2026-06-02 |
| CVE-2025-49710 | 9.8 | 49.4 | CRITICAL | — | 2025-06-11 |
| CVE-2025-49709 | 9.8 | 46.1 | CRITICAL | — | 2025-06-11 |
| CVE-2026-74990 | 9.8 | 44.0 | CRITICAL | — | 2026-08-18 |
| CVE-2026-8953 | 9.6 | 42.7 | CRITICAL | — | 2026-05-19 |
| CVE-2026-12292 | 8.1 | 40.4 | HIGH | — | 2026-06-16 |
| CVE-2026-12328 | 8.1 | 39.3 | HIGH | — | 2026-06-16 |
| CVE-2025-8028 | 9.8 | 39.0 | CRITICAL | — | 2025-07-22 |
| CVE-2026-8091 | 9.8 | 38.8 | CRITICAL | — | 2026-05-07 |
| CVE-2026-8094 | 9.8 | 37.3 | CRITICAL | — | 2026-05-07 |
| CVE | CVSS | EPSS %ile | Severity | KEV | First seen |
|---|---|---|---|---|---|
| CVE-2026-74980 | — | 3.7 | — | — | 2026-08-18 |
| CVE-2026-74975 | 5.4 | 6.9 | MEDIUM | — | 2026-08-18 |
| CVE-2026-74986 | — | 4.7 | — | — | 2026-08-18 |
| CVE-2026-74989 | — | 4.7 | — | — | 2026-08-18 |
| CVE-2026-74988 | — | 5.1 | — | — | 2026-08-18 |
| CVE-2026-74981 | — | 4.7 | — | — | 2026-08-18 |
| CVE-2026-74984 | — | 4.7 | — | — | 2026-08-18 |
| CVE-2026-74982 | — | 4.7 | — | — | 2026-08-18 |
| CVE-2026-74985 | — | 4.7 | — | — | 2026-08-18 |
| CVE-2026-74978 | 8.1 | 16.3 | HIGH | — | 2026-08-18 |
| CVE-2026-74979 | 9.8 | 27.9 | CRITICAL | — | 2026-08-18 |
| CVE-2026-74977 | 7.5 | 26.6 | HIGH | — | 2026-08-18 |
| CVE-2026-74973 | 4.2 | 8.7 | MEDIUM | — | 2026-08-18 |
| CVE-2026-74966 | — | 4.1 | — | — | 2026-08-18 |
| CVE-2026-74970 | 5.4 | 6.6 | MEDIUM | — | 2026-08-18 |
| CVE | KEV added | CVSS | EPSS %ile | Severity |
|---|---|---|---|---|
| CVE-2024-9680 | 2024-10-15 | 9.8 | 97.6 | CRITICAL |
| CVE-2015-4495 | 2022-05-25 | — | 99.3 | — |
| CVE-2022-26485 | 2022-03-07 | — | 96.2 | — |
| CVE-2022-26486 | 2022-03-07 | — | 82.3 | — |
| CVE-2013-1675 | 2022-03-03 | — | 93.4 | — |
Vendor: Mozilla — all products and the full vendor record.
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.