{"id":"CVE-2023-7101","url":"https://www.cyber-defence.io/tools/cve/CVE-2023-7101","generatedAt":"2026-10-31T10:22:25.561Z","title":"Spreadsheet::ParseExcel Remote Code Execution Vulnerability","description":"Spreadsheet::ParseExcel version 0.65 is a Perl module used for parsing Excel files. Spreadsheet::ParseExcel is vulnerable to an arbitrary code execution (ACE) 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 (not to be confused with printf-style format strings) within the Excel parsing logic.","published":"2023-12-24T22:15:08.000Z","lastModified":"2026-06-17T06:52:04.000Z","status":"Analyzed","sourceIdentifier":"mandiant-cve@google.com","cvss":{"version":"3.1","score":7.8,"severity":"HIGH","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"},"cwe":["CWE-95","CWE-94"],"affected":["jmcnamara/spreadsheet\\","debian/debian linux","fedoraproject/fedora"],"epss":{"score":0.18959,"percentile":0.97298,"date":"2026-10-30","history":[]},"kev":{"listed":true,"dateAdded":"2024-01-02","dueDate":"2024-01-23","knownRansomwareCampaignUse":"Unknown","notes":"Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.\nThis vulnerability affects a common open-source component, third-party library, or a protocol used by different products. Please check with specific vendors for information on patching status. For more information, please see: https://metacpan.org/dist/Spreadsheet-ParseExcel and Barracuda's specific implementation and fix for their downstream issue CVE-2023-7102 at https://www.barracuda.com/company/legal/esg-vulnerability;  https://nvd.nist.gov/vuln/detail/CVE-2023-7101"},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"urgent","text":"Known to be exploited in the wild (CISA KEV, CISA remediation deadline 23 January 2024). Treat as an emergency change: patch or isolate now, then hunt for prior compromise."},"changes":[],"references":[{"url":"http://www.openwall.com/lists/oss-security/2023/12/29/4","tags":["Mailing List","Patch","Third Party Advisory"],"source":"mandiant-cve@google.com"},{"url":"https://github.com/jmcnamara/spreadsheet-parseexcel/blob/c7298592e102a375d43150cd002feed806557c15/lib/Spreadsheet/ParseExcel/Utility.pm#L171","tags":["Product"],"source":"mandiant-cve@google.com"},{"url":"https://github.com/mandiant/Vulnerability-Disclosures/blob/master/2023/MNDT-2023-0019.md","tags":["Third Party Advisory"],"source":"mandiant-cve@google.com"},{"url":"https://https://github.com/haile01/perl_spreadsheet_excel_rce_poc","tags":["Broken Link","Third Party Advisory"],"source":"mandiant-cve@google.com"},{"url":"https://https://github.com/jmcnamara/spreadsheet-parseexcel/commit/bd3159277e745468e2c553417b35d5d7dc7405bc","tags":["Broken Link","Patch"],"source":"mandiant-cve@google.com"},{"url":"https://https://metacpan.org/dist/Spreadsheet-ParseExcel","tags":["Broken Link","Product"],"source":"mandiant-cve@google.com"},{"url":"https://https://www.cve.org/CVERecord?id=CVE-2023-7101","tags":["Broken Link","Third Party Advisory"],"source":"mandiant-cve@google.com"},{"url":"https://lists.debian.org/debian-lts-announce/2023/12/msg00025.html","tags":["Mailing List"],"source":"mandiant-cve@google.com"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/IFEHKULQRVXHIV7XXK2RGD4VQN6Y4CV5/","tags":["Broken Link","Mailing List"],"source":"mandiant-cve@google.com"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/M2FIWDHRYTAAQLGM6AFOZVM7AFZ4H2ZR/","tags":["Broken Link","Mailing List"],"source":"mandiant-cve@google.com"},{"url":"https://security.metacpan.org/2024/02/10/vulnerable-spreadsheet-parsing-modules.html","tags":["Third Party Advisory"],"source":"mandiant-cve@google.com"},{"url":"http://www.openwall.com/lists/oss-security/2023/12/29/4","tags":["Mailing List","Patch","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://github.com/jmcnamara/spreadsheet-parseexcel/blob/c7298592e102a375d43150cd002feed806557c15/lib/Spreadsheet/ParseExcel/Utility.pm#L171","tags":["Product"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://github.com/mandiant/Vulnerability-Disclosures/blob/master/2023/MNDT-2023-0019.md","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://https://github.com/haile01/perl_spreadsheet_excel_rce_poc","tags":["Broken Link","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://https://github.com/jmcnamara/spreadsheet-parseexcel/commit/bd3159277e745468e2c553417b35d5d7dc7405bc","tags":["Broken Link","Patch"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://https://metacpan.org/dist/Spreadsheet-ParseExcel","tags":["Broken Link","Product"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://https://www.cve.org/CVERecord?id=CVE-2023-7101","tags":["Broken Link","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.debian.org/debian-lts-announce/2023/12/msg00025.html","tags":["Mailing List"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/IFEHKULQRVXHIV7XXK2RGD4VQN6Y4CV5/","tags":["Broken Link","Mailing List"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/M2FIWDHRYTAAQLGM6AFOZVM7AFZ4H2ZR/","tags":["Broken Link","Mailing List"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://security.metacpan.org/2024/02/10/vulnerable-spreadsheet-parsing-modules.html","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-7101","tags":["US Government Resource"],"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2023-7101","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}