Legacy built-in user account
Priority LOW 37CWE-798Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-798.
Summary
Use of Hard-coded Credentials vulnerability in Avantra allows Accessing Functionality Not Properly Constrained by ACLs. This issue affects Avantra: before 25.3.0.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.0022 12th percentileScored 2026-11-07
Fix Fixed Avantra (syslink software AG): 25.3.0
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 |
|---|---|---|---|---|---|
| syslink software AG | Avantra | before 25.3.0 | 25.3.0 | Patch available | CNA |
- Avantra Vendorsyslink software AG Affected before 25.3.0 Fixed in 25.3.0 Patch available CNA
CPE names Threatist (inferred) · 1
Inferred from how NVD named this product before; not given by a source.
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:avantra:avantra:*:*:*:*:*:*:*:* | — | — | syslink software AG |
- cpe:2.3:a:avantra:avantra:*:*:*:*:*:*:*:* Versions — — ·syslink software AG
Remediation
- Fix · CNA Avantra (syslink software AG) Fixed in 25.3.0
Timeline
- 2026-10-02 Threatist record created from CVE-2026-3873
- 2026-10-03 Alias added: GHSA-q26g-448c-9p4x
References
More syslink software AG vulnerabilities
- TI-2026-07619 Insecure session handling on metrics web server CVSS 3.1CRITICAL 9.6
- TI-2026-07622 Password re-initialization mechanism sends passwords in plain text CVSS 3.1CRITICAL 9.1
- TI-2026-07620 Log Files contain encrypted secrets CVSS 3.1HIGH 7.5
- TI-2026-07621 Default credentials for internal DB CVSS 3.1MEDIUM 5.1
Sources
- CVE-2026-3873 · CVE Program
- CVE-2026-3873 · NVD
- FIRST EPSS
- GHSA-q26g-448c-9p4x · GitHub Advisory Database · CC BY 4.0
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