Improper Restriction of Excessive Authentication Attempts in boneIO

published 2026-10-26 13 d ago modified 2026-11-02 6 d ago also EUVD-2026-109952

cvss: 2.3; version 4.0, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.3%; EPSS 0.3% chance of exploitation in 30 days, percentile 20%
public exploits: 0; none known

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.

Patch / fix

fixed in 1

boneIO boneIO 1.6.0

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: total
Assessed: 6 d ago (2026-11-02)

Exploit prediction

0.28% chance of exploitation in the next 30 days, higher than 20% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	4.0	2.3	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
CNA	4.0	2.3	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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Affected products

boneIO boneIO

Classification

Weakness

CWE-307 Improper Restriction of Excessive Authentication Attempts

References

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

Sources

CVE List CVE-2026-77057
NVD CVE-2026-77057

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary