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01 Record

CVE-2026-116606

Authentication Bypass Allows Global Configuration Restore in Barracuda Email Security Gateway

CriticalKEVPUBLISHEDCNA: Mandiant
CNA base score9.3 CVSS v4.0CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

02 Description

Authentication Bypass Allows Global Configuration Restore in Barracuda Email Security Gateway

03 Exploitation and scoring

Exploitation
Exploited in the wild. Listed in the CISA Known Exploited Vulnerabilities catalog on 2026-11-10. Federal remediation due 2026-11-13.
SSVC decision
  • ExploitationactiveCISA reports credible evidence of active exploitation.
  • AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
  • Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.
EPSS probability
1.60% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 75.9% of scored records. A rank, not a probability.
NVD base score
9.3 (CVSS v4.0), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
NVD analysis status
Undergoing Analysis. NVD last modified this record on 2026-11-11.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2026-11-02 12:59Z9 DAYS AGO
Last updated
2026-11-11 04:55Z8 HR AGO
Reserved
2026-10-26
Assigning CNA
Mandiant
Record state
PUBLISHED
Severity
Critical (CVSS 9.3)
CNA CVSS vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Weaknesses
  • CWE-288Authentication Bypass Using an Alternate Path or ChannelBase
Data version
5.2
Document digest
a0f49ce8cacd9c1b57e88c99974dd266f825dbe7cd2f466fdf5904cb35de56e9

05 Affected products

VendorProductVersionsPlatforms
Barracuda NetworksBarracuda Email Security Gateway (ESG)0 to < 9.4.0.030—

06 References