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CVE-2026-49200

CRITICAL 10

Published 2026-05-29 · Last modified 2026-05-29

The acer_cgi.log file in the device firmware is accessible without authentication via the web interface. This file contains cleartext login credentials (for web and Telnet), leading to unauthorized system access.

ELEVATED IMPACT

Severe if exploited (CVSS 10), but no known exploitation and low modeled probability. Patch on a normal cadence.

Exploitation likelihood

0.5%chance of exploitation in 30 days · 40th percentile

○ In CISA KEV ○ Public exploit / PoC

Impact if exploited

10CVSS 4.0 · CRITICAL

  • ConfidentialityHigh
  • IntegrityHigh
  • AvailabilityHigh

What an attacker needs

  • ✓Access: Reachable over the network — no local access needed
  • ✓Privileges: No account or privileges required
  • ✓User interaction: No user interaction needed
  • ✓Complexity: No special conditions — reliably repeatable
  • ✓Requirements: No special attack requirements

✓ lowers the bar for an attacker · ⚠ raises it

Affected

Vendors Acer

Products Wave 7 Router

Weakness (CWE)

  • CWE-532

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H

References

Technical & other

Sources: NVD · CVE.org · EPSS