TI-2024-21311 Aliases CVE-2024-32388 GHSA-fh4c-98rx-vxvw

Due to a firewall misconfiguration, Kerlink devices running KerOS prior to 5.12…

LOW 32CWE-402Published 2025-12-01 · Updated 2025-12-01

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Impact type: —
Confidentiality · integrity · availability: Low · None · None
Fix status: No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA.

Summary

Due to a firewall misconfiguration, Kerlink devices running KerOS prior to 5.12 incorrectly accept specially crafted UDP packets. This allows an attacker to bypass the firewall and access UDP-based services that would otherwise be protected.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00988 62nd percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: Yes
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
—	—	all versions	—	No fix listed	CNA

— Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:o:kerlink:keros::::::::	5.0 to before 5.12	Vulnerable	Kerlink

cpe:2.3:o:kerlink:keros:*:*:*:*:*:*:*:* Versions 5.0 to before 5.12 Vulnerable ·Kerlink

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2024-32388
2026-10-03 Alias added: GHSA-fh4c-98rx-vxvw

References

Advisory 2

TI-2024-26188 The service wmp-agent of KerOS prior 5.12 does not properly validate so-called ‘magic… CVSS 3.1HIGH 8.1
TI-2024-21307 Kerlink gateways running KerOS prior to version 5.10 expose their web interface… CVSS 3.1HIGH 7.4

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences