Authentication Bypass Allows Global Configuration Restore in Barracuda Email Security Gateway
Affects Barracuda Email Security Gateway versions earlier than 9.4.0.030. Fixed in 9.4.0.030.
Written by anthropic/claude-haiku-5.5 from the sources below. Verify against them.
- Exploited
- No known exploitation
- Fix
- Fixed in 9.4.0.030
- Who is exposed
- Not reported
Do first: Upgrade to a fixed version: 9.4.0.030.
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- Published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- A 0-100 score for how much a CVE matters across the industry: exploitation, exposure, how widely the software is used, severity and whether a fix exists.What do these mean? →
- 20/100 · provisional
- How many real-world setups can hit the bug, from the vendor's advisory and CISA data. It does not know your setup.What do these mean? →
- Unclear
- Fix
- Fixed in 9.4.0.030
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
- Exploitation: none
- Automatable: yes
- Technical impact: total
Summary
The Barracuda Email Security Gateway appliance is affected. An unauthenticated remote attacker could bypass login protections and restore a crafted configuration backup, allowing unauthorized changes to the device's global settings.
Read the original description
An authentication bypass in Barracuda Email Security Gateway versions earlier than 9.4.0.030 allows an unauthenticated remote attacker to invoke a configuration-import function and restore a crafted, compatible backup archive, resulting in unauthorized modification of the appliance’s global configuration.
What to do
Upgrade to a fixed version: 9.4.0.030.
Timeline
- CVE published
- First seen by cve.now
- Posted on X by cve.now
- CISA SSVC assessment
Exploitation: none · Automatable: yes · Technical impact: total
- Record last updated
Affected versions
- Barracuda Networks Barracuda Email Security Gateway (ESG)
fixed in 9.4.0.030
Evidence 2
- Advisory
- Repository
Corrections
None so far.
Something wrong on this page? Report an error. Every fix is listed here.
Questions about CVE-2026-116606
What does this mean?
An unauthenticated remote attacker can bypass the login check and restore a crafted backup archive. This changes the appliance's global configuration without authorization.Source: github.com
Am I affected, and how do I check?
Barracuda Email Security Gateway (ESG) versions earlier than 9.4.0.030 are affected. Check the installed firmware version on the appliance to see whether it falls below that release.Source: github.com
What should I do about it?
Upgrade Barracuda Email Security Gateway to version 9.4.0.030 or later, which contains the fix.Source: github.com
Is it being exploited?
It is not in CISA's Known Exploited Vulnerabilities catalog, and CISA's SSVC assessment does not mark exploitation as active. That does not mean it has not been attacked: vendors and researchers can report attacks before CISA lists them. No public exploit code is tracked.Source: cve.now feed data