Hirschmann HiLCOS Hard-coded Credentials SSH SSL Keys
Published Apr 3, 2026
8.8
HIGHCVSS 4.0
EPSS 0.29%
Description
Hirschmann HiLCOS devices OpenBAT, WLC, BAT300, BAT54 prior to 8.80 and OpenBAT prior to 9.10 are shipped with identical default SSH and SSL keys that cannot be changed, allowing unauthenticated remote attackers to decrypt or intercept encrypted management communications. Attackers can perform man-in-the-middle attacks, impersonate devices, and expose sensitive information by leveraging the shared default cryptographic keys across multiple devices.
Affected products
-
- Version 0StatusaffectedConstraints<=8.80
- Version 9.00StatusaffectedConstraints<=9.00-RU1
- Version 9.10StatusunaffectedConstraints-
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Belden | Hirschmann HiLCOS | affected |
|
No data.
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N
1 other source (NVD) ▾
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/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
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N
No CVSS v3.0 score for this CVE.
No CVSS v2.0 score for this CVE.
This CVE is not in the KEV list.
CISA SSVC (Vulnrichment)
Stakeholder-Specific Vulnerability Categorization from CISA ADP.
Exploitation
NoneAutomatable
YesTechnical Impact
PartialDecision
n/aAssessed Apr 6, 2026 · SSVC 2.0.3
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
Apr–Oct 2026- EPSS v4
- EPSS v5
Percentile over time
- EPSS v4
- EPSS v5
Table of values (3 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.29% (0.00291) | 19.56th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.29% (0.00291) | 20.51th | v5 (v2026.06.15) |
| Apr 4, 2026 | 0.01% (0.00005) | 0.21th | v4 (v2025.03.14) |
References (2)
- https://assets.belden.com/m/76d31798e65c9f47/original/Security-Bulletin-SSH-SSL-Default-Keys-HiLCOS-Hirschmann-BSECV-2015-12.pdf vendor-advisory
- https://www.vulncheck.com/advisories/hirschmann-hilcos-hard-coded-credentials-ssh-ssl-keys third-party-advisory
| Link | Providers | Tags |
|---|---|---|
| https://assets.belden.com/m/76d31798e65c9f47/original/Security-Bulletin-SSH-SSL-Default-Keys-HiLCOS-Hirschmann-BSECV-2015-12.pdf | vendor-advisory | |
| https://www.vulncheck.com/advisories/hirschmann-hilcos-hard-coded-credentials-ssh-ssl-keys | third-party-advisory |
Change history (0)
No recorded changes yet.