What is CVE-2023-7102?

CVE-2023-7102 is a critical-severity vulnerability in Barracuda Email Security Gateway 300, classified under CWE-1104. CVSS score: 9.8/10. Published 2023-12-24.

How severe is CVE-2023-7102?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Is CVE-2023-7102 known to be exploited?

4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Barracuda Email Security Gateway 300

CVE-2023-7102

Use of a Third Party library produced a vulnerability in Barracuda Networks Inc. Barracuda ESG Appliance which allowed Parameter Injection.This issue affected Barracuda ESG Appliance, from 5.1.3.001 through 9.2.1.001, until Barracuda removed the vulnerable logic.

Published 2023-12-24 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.446 (98.8th percentile), scored 2026-10-20.

Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 99th percentile — 98.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.446 · newest: 0.446 · change: 0.000

Affected products

Weakness classification (CWE)

CWE-1104

Public proof-of-concept exploits

References

www.barracuda.com/company/legal/esg-vulnerability (Vendor Advisory)
www.cve.org/CVERecord (Third Party Advisory)
metacpan.org/dist/Spreadsheet-ParseExcel (Product)
github.com/haile01/perl_spreadsheet_excel_rce_poc (Third Party Advisory)
github.com/jmcnamara/spreadsheet-parseexcel/blob/c7298592e102a375d43150cd002fee… (Product)
github.com/mandiant/Vulnerability-Disclosures/blob/master/2023/MNDT-2023-0019.md (Third Party Advisory)

Frequently asked questions

What is CVE-2023-7102?: CVE-2023-7102 is a critical-severity vulnerability in Barracuda Email Security Gateway 300, classified under CWE-1104. CVSS score: 9.8/10. Published 2023-12-24.
How severe is CVE-2023-7102?: Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2023-7102 known to be exploited?: 4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.