Vulnerability · Published Oct 26, 2026 · Assigned by CERT-PL

CVE-2026-77057Improper Restriction of Excessive Authentication Attempts in boneIO

Low 2.3

In plain English

A low-severity security flaw in boneIO from boneIO. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 20% of all known vulnerabilities).

Severity (CVSS 4.0)2.3Low

Exploit odds (30 days)0.3%top 79.8% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

boneIO Black does not limit authentication attempts on its web interface (POST /api/login) or SSH service, and does not enforce password complexity. An unauthenticated remote attacker can make unlimited brute-force login attempts, potentially compromising user accounts and gaining unauthorized access to the device. This issue was fixed in version 1.6.0: web login attempts are rate-limited per source address and per account, panel passwords must be at least 8 characters long, and SSH allows three authentication attempts per connection with a shortened login grace time.

Affected products (as reported)

Vendor	Product	Versions
boneIO	boneIO	1.2.0 – before 1.6.0

Weakness: CWE-307 · Vector: CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N

References

https://cert.pl/en/posts/2026/10/CVE-2026-77052 third-party-advisory
https://boneio.eu/en/docs/black product