Reference page — cumulative record through Monday, October 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.
AV AC PR UI S C I A CVSS EPSS %ile KEV N L N N U H H H 9.8 .0345 88.8 —
AFFECTED Product Versions Fixed n/a n/a – —
TIMELINE Oct 14 Reserved by mitre Oct 14 Published (CNA: mitre) Oct 15 RESCORED — CVE-2023-45853. CVSS 8.8 → 9.8 (NVD).
MiniZip in zlib through 1.3 has an integer overflow and resultant heap-based buffer overflow in zipOpenNewFileInZip4_64 via a long filename, comment, or extra field. NOTE: MiniZip is not a supported part of the zlib product. NOTE: pyminizip through 0.2.6 is also vulnerable because it bundles an affected zlib version, and exposes the applicable MiniZip code through its compress API.
| Date | Event | Detail |
|---|---|---|
| October 14, 2023 | Reserved | Reserved by mitre |
| October 14, 2023 | Published | Published (CNA: mitre) |
| October 15, 2026 | RESCORED | RESCORED — CVE-2023-45853. CVSS 8.8 → 9.8 (NVD). |
| Vendor | Product / Package | Ecosystem | Version introduced | Fixed |
|---|---|---|---|---|
| n/a | n/a | — | n/a | — |
Authoritative record: CVE-2023-45853 at cve.org
Weaknesses: CWE-190
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2023-45853 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Monday, October 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.
