CVE-2026-49201
CWE-798Published: May 29, 2026· Updated: May 29, 2026
Official Description
The upload.cgi binary, responsible for processing device backups, contains a hardcoded AES encryption key. This allows an attacker to decrypt, modify, and re-encrypt system backups, facilitating persistent backdoor injection.
Risk Analysis
This critical vulnerability stems from a hardcoded AES encryption key used for device backups, allowing attackers to decrypt, modify, and re-encrypt backups. This enables the injection of persistent backdoors, posing a severe risk to system integrity. 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 address the hardcoded encryption key issue. Implement strong access controls and monitoring for backup processes to detect unauthorized modifications.
Technical Analysis
CVE-2026-49201 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.
CVSS v3.1 Vector Breakdown
Exploit & PoC Resources
All References (1)
Quick Facts
Related CVEs (CWE-798)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2026-49201 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts