CVE-2023-7102 | Remote Code Execution (RCE) Vulnerability

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 update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2023-7102 is rated High Risk (74.2/100): CVSS Critical severity, with high exploitation likelihood (EPSS 82.72%, 99th percentile). EPSS ranks this CVE among the most likely to be exploited in the near term. High exploitation likelihood—assess exposure and prioritize remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2023-7102

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-05-27 82.49% 82.72% +0.23%
2 2026-05-20 7.82% 82.49% +74.67%
3 2026-05-19 — 7.82% —

Full EPSS history (23 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2023-7102

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
9.8 3.1 CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.9 5.9 [email protected]

Weakness enumeration for CVE-2023-7102

Affected software / configurations for CVE-2023-7102

Vendor Product Version Raw CPE
barracuda email_security_gateway_300_firmware >= 5.1.3.001, <= 9.2.1.001 cpe:2.3:o:barracuda:email_security_gateway_300_firmware:*:*:*:*:*:*:*:*
barracuda email_security_gateway_400_firmware >= 5.1.3.001, <= 9.2.1.001 cpe:2.3:o:barracuda:email_security_gateway_400_firmware:*:*:*:*:*:*:*:*
barracuda email_security_gateway_600_firmware >= 5.1.3.001, <= 9.2.1.001 cpe:2.3:o:barracuda:email_security_gateway_600_firmware:*:*:*:*:*:*:*:*
barracuda email_security_gateway_800_firmware >= 5.1.3.001, <= 9.2.1.001 cpe:2.3:o:barracuda:email_security_gateway_800_firmware:*:*:*:*:*:*:*:*
barracuda email_security_gateway_900_firmware >= 5.1.3.001, <= 9.2.1.001 cpe:2.3:o:barracuda:email_security_gateway_900_firmware:*:*:*:*:*:*:*:*

References for CVE-2023-7102

cvelogic Threat Intelligence