CVE-2026-49197
CWE-287Published: May 29, 2026· Updated: May 29, 2026
Official Description
Web endpoints intended for the Acer Connect app improperly validate the HTTP Authorization header, failing to block requests when Base64 decoding fails.
Risk Analysis
This critical vulnerability allows unauthenticated access to web endpoints due to improper validation of the HTTP Authorization header. The flaw fails to block requests when Base64 decoding fails, leading to unauthorized system access. The CVSSv4 score of 10.0 indicates maximum severity and impact.
No public exploit is known for this vulnerability. The network attack vector and low attack complexity mean it is remotely exploitable without authentication.
Review and update device firmware to versions that properly validate HTTP Authorization headers. Implement robust input validation and authentication checks for all web endpoints.
Technical Analysis
CVE-2026-49197 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.
From a weakness classification perspective (CWE-287): Authentication bypass vulnerabilities allow attackers to access protected resources without valid credentials.
CVSS v3.1 Vector Breakdown
Exploit & PoC Resources
All References (1)
Quick Facts
Related CVEs (CWE-287)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2026-49197 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts