Authenticated file disclosure via unchecked log path
Published Mar 19, 2026 · Updated Mar 19, 2026
Path traversal in Sercomm SCE4255W firmware before DG3934v3@2308041842 allows remote authenticated users to read arbitrary files. The /logsave.htm handler in /ftl/web/setup.cgi joins untrusted log_type input to /var/log2/syslog without normalization or a containment check, then opens and streams the resolved file. A valid web UI session is required; exposed files include hashed credentials and internal configuration data, enabling credential theft and further privilege escalation.
Summary
What happened
Path traversal in Sercomm SCE4255W firmware before DG3934v3@2308041842 allows remote authenticated users to read arbitrary files. The /logsave.htm handler in /ftl/web/setup.cgi joins untrusted log_type input to /var/log2/syslog without normalization or a containment check, then opens and streams the resolved file. A valid web UI session is required; exposed files include hashed credentials and internal configuration data, enabling credential theft and further privilege escalation.
The record
- CVE
- CVE-2025-67115
- Published
- Mar 19, 2026
- Updated
- Mar 19, 2026
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-22, T1005
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Mar 19, 2026CVE publishedPublication date reported by the CVE source.
- Mar 19, 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?
What conditions does exploitation require?
What is affected?
Affected products and versions are unavailable in this record.
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
- Authenticated log_type traversal requestproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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