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Back to active CVEs
Critical · CVSS 9.4Known ExploitedCVE-2023-2868

Remote Code injection in Barracuda Email Security GatewayCVE-2023-2868

Answer in brief

CVE-2023-2868 records a Critical severity (CVSS 9.4) vulnerability in Remote Code injection in Barracuda Email Security Gateway. The current sources mark it as known exploited. The current feed maps Barracuda/Barracuda Email Security Gateway (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published May 24, 2023Updated Oct 21, 2025Source checked Nov 3, 2026First seen by HOL May 24, 2026Material review Oct 21, 2025
Upstream Advisory

Key facts

Risk
Critical · CVSS 9.4
Exploitation
Known exploited
Affected software
1 mapped package or product
Fix availability
Available

Why this deserves its current priority

CVSS is 9.4. Known-exploitation status makes exposure review time-sensitive. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Barracuda/Barracuda Email Security Gateway (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
Barracuda/Barracuda Email Security Gatewaygeneric>=5.1.3.001 <9.2.0.0069.2.0.006

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for Barracuda/Barracuda Email Security Gateway.
  2. 2Review the reported fix. Update Barracuda/Barracuda Email Security Gateway to 9.2.0.006 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

  1. Published upstream

    May 24, 2023

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Oct 21, 2025

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    May 24, 2026

  4. Added to CISA KEV

    May 26, 2023

    Evidence: source:kev:kev:kev:record

Sources and claim methodology

  • Source referencestatus.barracuda.com
  • Source referencebarracuda.com
  • CISA Known Exploited Vulnerabilities catalogcisa.gov
Upstream source description

A remote command injection vulnerability exists in the Barracuda Email Security Gateway (appliance form factor only) product effecting versions 5.1.3.001-9.2.0.006. The vulnerability arises out of a failure to comprehensively sanitize the processing of .tar file (tape archives). The vulnerability stems from incomplete input validation of a user-supplied .tar file as it pertains to the names of the files contained within the archive. As a consequence, a remote attacker can specifically format these file names in a particular manner that will result in remotely executing a system command through Perl's qx operator with the privileges of the Email Security Gateway product. This issue was fixed as part of BNSF-36456 patch. This patch was automatically applied to all customer appliances.

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • Apache Oozie: workflow rerun bypasses the per-job ACL and reassigns ownershipAlso CWE-20

Record context

Vulnerability class
Command Injection
EPSS
Not reported
CWE IDs
CWE-20
Source
CVE List V5
Source checked
Nov 3, 2026
References
3 linked sources
Open source record