ClosedPatched

Spreadsheet::ParseExcel Remote Code Execution

Spreadsheet::ParseExcel

Spreadsheet::ParseExcel contains a remote code execution vulnerability due to passing unvalidated input from a file into a string-type “eval”. Specifically, the issue stems from the evaluation of Number format strings within the Excel parsing logic. Added to the CISA KEV catalog on 2024-01-02. CVE-2023-7101 was assigned before 2024; the KEV listing came in 2024.

Why this severity: CVSS 7.8 (v3.1, CISA-ADP), actively exploited (CISA KEV)

Started: Jan 2, 2024
Closed: Jan 2, 2024
CVE: CVE-2023-7101

Follow this incident

Updated Jan 2, 2024

Affected

See vendor advisory (versions are not listed in the KEV record)

Fixed in

See vendor advisory linked in sources

Timeline1

Jan 2, 2024
CISA added CVE-2023-7101 to the KEV catalog (federal deadline 2024-01-23)
Source

Advisories4

Notes & caveats

Derived from the CISA KEV JSON feed (catalogVersion 2026.10.21); CVSS from the CVE record (cveawg.mitre.org). startedAt is the CVE publication date when it fell in 2024 before the KEV listing, else the KEV dateAdded; exploitation may have begun earlier. closedAt is the KEV listing date (a fix or mitigation was available then unless noted).

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