{"ticker":"ZERODAY","name":"Software holes under attack","family":"net","counts":"Software flaws the US Cybersecurity and Infrastructure Security Agency added in a month to its catalog of flaws attackers are known to be using. Counted from December 2021, the first full month after the catalog's first load.","unit":"flaws","cadence":"Monthly. CISA adds entries any day; a month prints once it has ended.","step":"month","period":"month","baseline":"monthly","source":{"name":"CISA, Known Exploited Vulnerabilities catalog","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","terms":"US government work, public domain.","terms_url":null,"attribution":null},"latest":{"period":"2026-10-01","value":36,"provisional":false,"change_pct":-16.3,"change_vs":"2026-09-01","score":27,"z":1.8},"latest_complete":{"period":"2026-10-01","value":36,"score":27,"z":1.8,"band":"Normal"},"baseline_days":{"have":24,"need":12},"revised_days":0,"predict":{"on":false,"why":"Calls open when the Arena takes monthly rounds."},"settlement":{"grade":"reference","why":"A federal agency's own catalog, read in full. A venue can count it directly. CISA has removed an entry when its CVE was withdrawn, which lowers a month already printed; the record keeps the revision.","manipulation":"Not practical. An entry is added by CISA after it confirms attacks.","fallback":"A month stays open until it ends and the catalog is read. A month with no entries is 0. A month the catalog can never be read for is void.","precision":"Whole catalog entries whose date added falls in the month.","version":"Rulebook v0.2, 2026-10-04","see_only":false},"linked":[],"url":"https://tickerz.com/x/zeroday","first_print":{"period":"2026-10-01","value":null,"sealed_day":null,"digest_sha256":null,"bitcoin_height":null,"proof_url":null,"note":"Not on-chain yet. The newest complete period goes on-chain with the daily proof at 12:40 UTC."},"days":[{"period":"2021-12-01","value":20,"provisional":false,"change_pct":null,"band":null,"z":null,"settlement_value":null},{"period":"2022-01-01","value":40,"provisional":false,"change_pct":100,"band":null,"z":null,"settlement_value":null},{"period":"2022-02-01","value":32,"provisional":false,"change_pct":-20,"band":null,"z":null,"settlement_value":null},{"period":"2022-03-01","value":226,"provisional":false,"change_pct":606.3,"band":null,"z":null,"settlement_value":null},{"period":"2022-04-01","value":45,"provisional":false,"change_pct":-80.1,"band":null,"z":null,"settlement_value":null},{"period":"2022-05-01","value":83,"provisional":false,"change_pct":84.4,"band":null,"z":null,"settlement_value":null},{"period":"2022-06-01","value":48,"provisional":false,"change_pct":-42.2,"band":null,"z":null,"settlement_value":null},{"period":"2022-07-01","value":3,"provisional":false,"change_pct":-93.8,"band":null,"z":null,"settlement_value":null},{"period":"2022-08-01","value":23,"provisional":false,"change_pct":666.7,"band":null,"z":null,"settlement_value":null},{"period":"2022-09-01","value":24,"provisional":false,"change_pct":4.3,"band":null,"z":null,"settlement_value":null},{"period":"2022-10-01","value":12,"provisional":false,"change_pct":-50,"band":null,"z":null,"settlement_value":null},{"period":"2022-11-01","value":10,"provisional":false,"change_pct":-16.7,"band":null,"z":null,"settlement_value":null},{"period":"2022-12-01","value":9,"provisional":false,"change_pct":-10,"band":"Quiet","z":-0.8,"settlement_value":null},{"period":"2023-01-01","value":5,"provisional":false,"change_pct":-44.4,"band":"Quiet","z":-0.9,"settlement_value":null},{"period":"2023-02-01","value":14,"provisional":false,"change_pct":180,"band":"Quiet","z":-0.4,"settlement_value":null},{"period":"2023-03-01","value":18,"provisional":false,"change_pct":28.6,"band":"Quiet","z":-0.2,"settlement_value":null},{"period":"2023-04-01","value":17,"provisional":false,"change_pct":-5.6,"band":"Quiet","z":-0.3,"settlement_value":null},{"period":"2023-05-01","value":19,"provisional":false,"change_pct":11.8,"band":"Quiet","z":-0.1,"settlement_value":null},{"period":"2023-06-01","value":24,"provisional":false,"change_pct":26.3,"band":"Quiet","z":0.3,"settlement_value":null},{"period":"2023-07-01","value":16,"provisional":false,"change_pct":-33.3,"band":"Quiet","z":-0.3,"settlement_value":null},{"period":"2023-08-01","value":8,"provisional":false,"change_pct":-50,"band":"Quiet","z":-0.9,"settlement_value":null},{"period":"2023-09-01","value":19,"provisional":false,"change_pct":137.5,"band":"Quiet","z":0,"settlement_value":null},{"period":"2023-10-01","value":18,"provisional":false,"change_pct":-5.3,"band":"Quiet","z":-0.1,"settlement_value":null},{"period":"2023-11-01","value":18,"provisional":false,"change_pct":0,"band":"Quiet","z":-0.1,"settlement_value":null},{"period":"2023-12-01","value":11,"provisional":false,"change_pct":-38.9,"band":"Quiet","z":-0.8,"settlement_value":null},{"period":"2024-01-01","value":21,"provisional":false,"change_pct":90.9,"band":"Quiet","z":0.3,"settlement_value":null},{"period":"2024-02-01","value":9,"provisional":false,"change_pct":-57.1,"band":"Quiet","z":-1,"settlement_value":null},{"period":"2024-03-01","value":10,"provisional":false,"change_pct":11.1,"band":"Quiet","z":-0.9,"settlement_value":null},{"period":"2024-04-01","value":10,"provisional":false,"change_pct":0,"band":"Quiet","z":-0.8,"settlement_value":null},{"period":"2024-05-01","value":14,"provisional":false,"change_pct":40,"band":"Quiet","z":-0.3,"settlement_value":null},{"period":"2024-06-01","value":9,"provisional":false,"change_pct":-35.7,"band":"Quiet","z":-0.8,"settlement_value":null},{"period":"2024-07-01","value":14,"provisional":false,"change_pct":55.6,"band":"Quiet","z":0,"settlement_value":null},{"period":"2024-08-01","value":19,"provisional":false,"change_pct":35.7,"band":"Quiet","z":0.8,"settlement_value":null},{"period":"2024-09-01","value":25,"provisional":false,"change_pct":31.6,"band":"Normal","z":1.9,"settlement_value":null},{"period":"2024-10-01","value":17,"provisional":false,"change_pct":-32,"band":"Quiet","z":0.5,"settlement_value":null},{"period":"2024-11-01","value":22,"provisional":false,"change_pct":29.4,"band":"Normal","z":1.2,"settlement_value":null},{"period":"2024-12-01","value":16,"provisional":false,"change_pct":-27.3,"band":"Quiet","z":-0.1,"settlement_value":null},{"period":"2025-01-01","value":14,"provisional":false,"change_pct":-12.5,"band":"Quiet","z":-0.7,"settlement_value":null},{"period":"2025-02-01","value":27,"provisional":false,"change_pct":92.9,"band":"Elevated","z":2.8,"settlement_value":null},{"period":"2025-03-01","value":32,"provisional":false,"change_pct":18.5,"band":"Elevated","z":3.4,"settlement_value":null},{"period":"2025-04-01","value":15,"provisional":false,"change_pct":-53.1,"band":"Quiet","z":-0.4,"settlement_value":null},{"period":"2025-05-01","value":24,"provisional":false,"change_pct":60,"band":"Normal","z":1.4,"settlement_value":null},{"period":"2025-06-01","value":20,"provisional":false,"change_pct":-16.7,"band":"Quiet","z":0.5,"settlement_value":null},{"period":"2025-07-01","value":20,"provisional":false,"change_pct":0,"band":"Quiet","z":0.6,"settlement_value":null},{"period":"2025-08-01","value":15,"provisional":false,"change_pct":-25,"band":"Quiet","z":-0.5,"settlement_value":null},{"period":"2025-09-01","value":16,"provisional":false,"change_pct":6.7,"band":"Quiet","z":-0.3,"settlement_value":null},{"period":"2025-10-01","value":31,"provisional":false,"change_pct":93.8,"band":"Elevated","z":2.8,"settlement_value":null},{"period":"2025-11-01","value":11,"provisional":false,"change_pct":-64.5,"band":"Quiet","z":-0.9,"settlement_value":null},{"period":"2025-12-01","value":20,"provisional":false,"change_pct":81.8,"band":"Normal","z":0.5,"settlement_value":null},{"period":"2026-01-01","value":17,"provisional":false,"change_pct":-15,"band":"Quiet","z":0.1,"settlement_value":null},{"period":"2026-02-01","value":28,"provisional":false,"change_pct":64.7,"band":"Normal","z":2.2,"settlement_value":null},{"period":"2026-03-01","value":26,"provisional":false,"change_pct":-7.1,"band":"Quiet","z":2,"settlement_value":null},{"period":"2026-04-01","value":31,"provisional":false,"change_pct":19.2,"band":"Normal","z":2.2,"settlement_value":null},{"period":"2026-05-01","value":21,"provisional":false,"change_pct":-32.3,"band":"Quiet","z":0.2,"settlement_value":null},{"period":"2026-06-01","value":23,"provisional":false,"change_pct":9.5,"band":"Quiet","z":0.4,"settlement_value":null},{"period":"2026-07-01","value":26,"provisional":false,"change_pct":13,"band":"Quiet","z":0.9,"settlement_value":null},{"period":"2026-08-01","value":31,"provisional":false,"change_pct":19.2,"band":"Normal","z":1.6,"settlement_value":null},{"period":"2026-09-01","value":43,"provisional":false,"change_pct":38.7,"band":"Elevated","z":2.9,"settlement_value":null},{"period":"2026-10-01","value":36,"provisional":false,"change_pct":-16.3,"band":"Normal","z":1.8,"settlement_value":null}],"round":null,"upcoming":null,"past_rounds":[],"resolved_rounds":[],"points":{"right":10,"wrong":0,"money":false},"seal":{"day":"2026-11-12","digest_sha256":"6d5210d388bc11cf2fcdcc86fb2fa01dc92efe78e45aa60675747ba4cdaa8322","stamped_at":"2026-11-12T12:40:33.705+00:00","bitcoin_height":975557},"forecast":null}