Authenticated credential exposure via unchecked UNC pathname
Published Aug 7, 2026 · Updated Aug 7, 2026
SSRF in TeamDavid Webbox through Rollout 524 allows remote authenticated users to expose NetNTLM credentials through a crafted path. The //ServerClient_celink.htm handler accepts pathname as a file path and resolves attacker-supplied UNC locations without validation. A valid account and permitted outbound SMB on TCP port 445 are required; the resulting server authentication exposes NetNTLM material for capture or relay.
Summary
What happened
SSRF in TeamDavid Webbox through Rollout 524 allows remote authenticated users to expose NetNTLM credentials through a crafted path. The //ServerClient_celink.htm handler accepts pathname as a file path and resolves attacker-supplied UNC locations without validation. A valid account and permitted outbound SMB on TCP port 445 are required; the resulting server authentication exposes NetNTLM material for capture or relay.
The record
- CVE
- CVE-2026-54205
- Published
- Aug 7, 2026
- Updated
- Aug 7, 2026
- Vendor
- Tobit Laboratories AG
- Product
- TeamDavid
- Classifications
- CWE-918, CWE-20, T1187
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Aug 7, 2026CVE publishedPublication date reported by the CVE source.
- Aug 7, 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=0 <=Rollout 524
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
- InfoGuard authenticated UNC-path SSRF requestproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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