Vulnerability report

Exploited in the wild High confidence Not in CISA KEV

CVE-2023-7102

Remote Code Execution (RCE) Vulnerability

Barracuda ESG Appliance · 5.1.3.001 to <= 9.2.1.001

Watch CVE-2023-7102 Browse KEV feed
Severity
CVSS 9.8 · Critical
Confidence
High
Exploit status
Exploited in the wild
EPSS
44.6%
First observed
—
Last observed
—

Decision summary

What security teams need to know first

Direct answers before the deeper technical record.

What it is

CVE-2023-7102 is an unauthenticated Remote Code Execution (RCE) Vulnerability affecting Barracuda ESG Appliance. Use of a Third Party library produced a vulnerability in Barracuda Networks Inc. Barracuda ESG Appliance...

Is it exploited?

Yes. Previdian tracks this CVE as a known exploited vulnerability. Confidence is high. Also confirmed by third-party sources.

Who is affected?

Barracuda ESG Appliance 5.1.3.001 to <= 9.2.1.001.

What should we do?

Prioritize remediation. Validate affected assets and apply vendor fixes on an accelerated timeline.

Overview

Use of a Third Party library produced a vulnerability in Barracuda Networks Inc

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.

Barracuda Networks Inc. Affected
Barracuda ESG Appliance
Through 9.2.1.001
Published
24 Dec 2023
Exploitation Reported
06 Oct 2026
Attack vector
Remote
Complexity
Low
Privileges
None
User interaction
None

Tags

edge

CVE References

Exploitation evidence

Why Previdian marks this CVE as exploited

Third-party attestation and first-party sensor observation are shown separately so teams can judge the evidence chain.

Exploited in the wild

The Hacker News

Recorded 06 Oct 2026

A trusted third party reported exploitation.

Known exploited vulnerability sources

Per-source evidence links for KEV attestations are available through the Previdian Pro API.

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Source Added
The Hacker News First 2026-10-06 18:34 UTC

Detection

Operational artifacts and observed signals

Make the evidence actionable in scanner, SOC, and edge-control workflows.

Observed signals

Request targets
User-Agents
Callback hosts
0
0
0

Request targets and User-Agents available in Pro. Callback host details available in Enterprise.

Scanner coverage

No scanner integrations recorded yet.

Virtual patch status

No Previdian virtual patch is currently available. Future rules ship for ModSecurity, Cloudflare, and AWS WAF.

Learn about virtual patches →

No detection artifacts or sensor request patterns are available for this CVE yet.

Check back as sensor telemetry and scanner integrations are updated.

Risk and context

Severity, weaknesses, and research context

CVSS v3.1

9.8 Critical

Potential damage if exploited. Separate from whether attackers are using it.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS

44.6%

Estimated chance of exploitation in the next 30 days. Previdian's warning comes from evidence, not this score.

Weaknesses

Use of Unmaintained Third Party Components CWE-1104

Recent mention · The Hacker News

Linux Backdoors Impersonate Email Security Tools to Evade Detection in Korea and Taiwan

Ravie LakshmananOct 06, 2026Cyber Espionage / Malware Linux backdoors targeting telecom and network appliances in South Korea and Taiwan have been disguising their traffic as email services and seemingly legitimate processes to blend in and evade detection. Threat actors are...

Read full advisory

Timeline

From disclosure to observed exploitation

  1. 18:34 UTC

    Added to Previdian KEV Feed

    High-confidence, third-party attested exploitation

  2. 21:47 UTC

    CVE published

    Vulnerability disclosed publicly

  3. 17:32 UTC

    CVE ID reserved

    Identifier reserved by the CNA

Pro API

Automate this intelligence

Confidence, exploit status, sensor telemetry, PoCs, scanner integrations, mentions, and tags are available programmatically for VM, SOC, and CTI workflows.

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  • Evidence confidence and provenance
  • First-party sensor telemetry
  • PoC and scanner references
  • Affected versions and enrichment
  • Automation-ready JSON delivery

GET /api/v2/pro/kevs/CVE-2023-7102

Free JSON includes basic KEV fields 
{
  "cve_id": "CVE-2023-7102",
  "confidence": "High",
  "cvss_score": 9.8,
  "cvss_estimated": false,
  "epss_score": 0.44575,
  "exploit_status": {
    "exploited_in_the_wild": true,
    "active_exploitation_observed": false
  },
  "sensor_telemetry": { "attempts": 0, "sensors": 0 }
}