Unauthenticated Credential Exposure via acer_cgi.log in Acer Wave 7 Routers
CVE-2026-49200 is a broken access control issue in Acer device firmware affecting Wave 7 mesh routers running firmware T7c_GBL_1.01.000055 and earlier. The vulnerability exposes the internal acer_cgi.log file through the web interface without authentication. According to the provided content, this log file contains cleartext login credentials for both the web management interface and Telnet access. Because the file can be retrieved remotely without identity checks, an unauthenticated attacker can obtain valid administrative credentials directly from the device and then use them to access the router.
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Impact, mitigation & remediation
What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
Impact
What an attacker gets, and what they’ve been doing with it.
Mitigation
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Remediation
Patch, then assume compromise.
Exploits
No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
Affected products & vendors
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Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
Recent activity
7 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A broken access control vulnerability in Acer Wave 7 mesh router firmware that allows unauthenticated attackers to access plaintext credentials from log archives.
An access control vulnerability in Acer Wave 7 router firmware that allows an unauthenticated attacker to read an exposed internal log file containing cleartext administrative credentials, enabling device compromise.
A maximum-severity broken access control vulnerability in Acer Wave 7 mesh routers that exposes plaintext web and Telnet credentials via an unauthenticated web-accessible log file.
An information disclosure vulnerability in device firmware where the acer_cgi.log file is accessible without authentication via the web interface, exposing cleartext web and Telnet credentials and enabling unauthorized system access.
The version that knows your environment.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.