Credential disclosure via unrestricted UNC backup paths
Published Mar 25, 2026 · Updated Mar 25, 2026
Improper access control in Enter Srl Iperius Backup 8.7.0 through 8.7.3 allows local users to expose stored NTLMv2 credentials. The backup job runner accepts attacker-controlled UNC source or destination paths and automatically authenticates over SMB with credentials stored in the job. A low-privileged local user must alter a job and run it as a service; capture yields NetNTLMv2 material for offline cracking or relay where SMB signing is not enforced.
Summary
What happened
Improper access control in Enter Srl Iperius Backup 8.7.0 through 8.7.3 allows local users to expose stored NTLMv2 credentials. The backup job runner accepts attacker-controlled UNC source or destination paths and automatically authenticates over SMB with credentials stored in the job. A low-privileged local user must alter a job and run it as a service; capture yields NetNTLMv2 material for offline cracking or relay where SMB signing is not enforced.
The record
- CVE
- CVE-2026-4823
- Published
- Mar 25, 2026
- Updated
- Mar 25, 2026
- Vendor
- Enter Srl
- Product
- Iperius Backup
- Classifications
- CWE-284, CWE-200, T1557
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Mar 25, 2026CVE publishedPublication date reported by the CVE source.
- Mar 25, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=8.7.0
- Affected versionversion=8.7.1
- Affected versionversion=8.7.2
- Affected versionversion=8.7.3
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
- NTLM Relay Vulnerability via NTLMv2 Credential Exposureproof of concept · demonstrated
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
See the directory against your own environment.
Your stack
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