Exploitation evidence
Known exploited · CISA KEV listed
Added 2024-01-02. Ransomware campaign use: Unknown.
CISA required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
CISA due date: 2024-01-23. This is the catalog’s deadline, not an assessment of your organization’s exposure.
KEV checked 13 Nov 2026, 00:20 Jerusalem · Original catalog ↗Reported products and versions
Douglas Wilson / Spreadsheet::ParseExcel
Default status: affected
- affected: 0.65
Fixes and workarounds
Update to version 0.66
Sources and related reporting
CVE Program record ↗ · Download tracked evidence as JSON
- https://github.com/mandiant/Vulnerability-Disclosures/blob/master/2023/MNDT-2023-0019.md
- https://https://www.cve.org/CVERecord?id=CVE-2023-7101
- https://https://metacpan.org/dist/Spreadsheet-ParseExcel
- https://https://github.com/haile01/perl_spreadsheet_excel_rce_poc
- https://github.com/jmcnamara/spreadsheet-parseexcel/blob/c7298592e102a375d43150cd002feed806557c15/lib/Spreadsheet/ParseExcel/Utility.pm#L171
- http://www.openwall.com/lists/oss-security/2023/12/29/4
- https://lists.debian.org/debian-lts-announce/2023/12/msg00025.html
- https://https://github.com/jmcnamara/spreadsheet-parseexcel/commit/bd3159277e745468e2c553417b35d5d7dc7405bc
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/IFEHKULQRVXHIV7XXK2RGD4VQN6Y4CV5/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/M2FIWDHRYTAAQLGM6AFOZVM7AFZ4H2ZR/
- https://security.metacpan.org/2024/02/10/vulnerable-spreadsheet-parsing-modules.html
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-7101
Observed change timeline
History begins when Egret first downloads each source. It is not the complete upstream CVE history.
12 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-12",
"epss": 0.18959,
"percentile": 0.9734
}10 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-10",
"epss": 0.18959,
"percentile": 0.97324
}09 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-09",
"epss": 0.18959,
"percentile": 0.9732
}08 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-08",
"epss": 0.18959,
"percentile": 0.97318
}07 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-07",
"epss": 0.18959,
"percentile": 0.97317
}06 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-06",
"epss": 0.18959,
"percentile": 0.97313
}06 Nov 2026, 06:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-05",
"epss": 0.18959,
"percentile": 0.97311
}04 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-04",
"epss": 0.18959,
"percentile": 0.9731
}04 Nov 2026, 12:20 Jerusalem · CVE Program record changed
Stored CNA snapshot at this observation.
{
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"cpe:2.3:a:jmcnamara:spreadsheet\\:\\:parseexcel:0.41:*:*:*:*:perl:*:*"
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"metrics": [
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"baseScore": 7.8,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"version": "3.1"
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},
{
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"timestamp": "2025-08-20T03:56:14.026771Z",
"version": "2.0.3"
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{
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"time": "2024-01-02T00:00:00.000Z",
"value": "CVE-2023-7101 added to CISA KEV"
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"url": "https://https://metacpan.org/dist/Spreadsheet-ParseExcel"
},
{
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"url": "https://https://github.com/haile01/perl_spreadsheet_excel_rce_poc"
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"url": "https://github.com/jmcnamara/spreadsheet-parseexcel/blob/c7298592e102a375d43150cd002feed806557c15/lib/Spreadsheet/ParseExcel/Utility.pm#L171"
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"url": "https://lists.debian.org/debian-lts-announce/2023/12/msg00025.html"
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"cna": {
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{
"collectionURL": "https://metacpan.org/pod/Spreadsheet::ParseExcel",
"defaultStatus": "affected",
"packageName": "Spreadsheet::ParseExcel",
"product": "Spreadsheet::ParseExcel",
"repo": "https://metacpan.org/release/DOUGW/Spreadsheet-ParseExcel-0.65/source/lib/Spreadsheet",
"vendor": "Douglas Wilson",
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"credits": [
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"type": "finder",
"user": "00000000-0000-4000-9000-000000000000",
"value": "Le Dinh Hai (https://github.com/haile01/perl_spreadsheet_excel_rce_poc/tree/main)"
},
{
"lang": "en",
"type": "reporter",
"user": "00000000-0000-4000-9000-000000000000",
"value": "Barracuda Networks Inc. https://www.barracuda.com/"
}
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"value": "<span style=\"background-color: transparent;\">Spreadsheet::ParseExcel version 0.65 is a Perl module used for parsing Excel files. Spreadsheet::ParseExcel is vulnerable to an arbitrary</span> <span style=\"background-color: transparent;\">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. </span><br>"
}
],
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],
"impacts": [
{
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"descriptions": [
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"value": "CAPEC-137: Parameter Injection"
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"problemTypes": [
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"cweId": "CWE-95",
"description": "CWE-95: Improper Neutralization of Directives in Dynamically Evaluated Code ('Eval Injection')",
"lang": "en",
"type": "CWE"
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]
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{
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{
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{
"url": "https://https://github.com/haile01/perl_spreadsheet_excel_rce_poc"
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{
"url": "https://github.com/jmcnamara/spreadsheet-parseexcel/blob/c7298592e102a375d43150cd002feed806557c15/lib/Spreadsheet/ParseExcel/Utility.pm#L171"
},
{
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},
{
"url": "https://lists.debian.org/debian-lts-announce/2023/12/msg00025.html"
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{
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},
{
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/IFEHKULQRVXHIV7XXK2RGD4VQN6Y4CV5/"
},
{
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/M2FIWDHRYTAAQLGM6AFOZVM7AFZ4H2ZR/"
},
{
"url": "https://security.metacpan.org/2024/02/10/vulnerable-spreadsheet-parsing-modules.html"
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],
"solutions": [
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{
"base64": false,
"type": "text/html",
"value": "Update to version 0.66<br>"
}
],
"value": "Update to version 0.66"
}
],
"source": {
"discovery": "UNKNOWN"
},
"title": "Arbitrary Code Execution (ACE) Vulnerability",
"x_generator": {
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},
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"cveId": "CVE-2023-7101",
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}03 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-03",
"epss": 0.18959,
"percentile": 0.97304
}03 Nov 2026, 02:22 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-02",
"epss": 0.18959,
"percentile": 0.973
}03 Nov 2026, 02:22 Jerusalem · CISA KEV status changed
Stored KEV snapshot at this observation.
{
"cveID": "CVE-2023-7101",
"cwes": [
"CWE-95"
],
"dateAdded": "2024-01-02",
"dueDate": "2024-01-23",
"forensicTriage": "No",
"knownRansomwareCampaignUse": "Unknown",
"notes": "This 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",
"product": "Spreadsheet::ParseExcel",
"requiredAction": "Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.",
"shortDescription": "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.",
"vendorProject": "Spreadsheet::ParseExcel",
"vulnerabilityName": "Spreadsheet::ParseExcel Remote Code Execution Vulnerability"
}