Hard-coded ArchiverSpaApi JWT Signing Key
Priority HIGH 70CWE-798Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- High
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-798.
Summary
The ArchiverSpaApi ASP.NET application uses a hard-coded JWT signing key. An unauthenticated remote attacker can generate and use a verifiable JWT token to access protected ArchiverSpaApi URL endpoints.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00397 34th 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
- Poc
- Automatable
- No
- Technical impact
- Total
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 |
|---|---|---|---|---|---|
| GFI Software | Archiver | 15.7 – 15.8 | — | No fix listed | CNA |
- Archiver VendorGFI Software Affected 15.7 – 15.8 Fixed in — No fix listed 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:gfi:archiver:*:*:*:*:*:*:*:* | — | — | GFI Software |
- cpe:2.3:a:gfi:archiver:*:*:*:*:*:*:*:* Versions — — ·GFI Software
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2025-35940
- 2026-10-03 Alias added: GHSA-5wcp-x98w-p534
References
More GFI Software vulnerabilities
- TI-2025-24238 GFI Kerio Control GFIAgent Missing Authentication on Administrative Interfaces CVSS 4.0CRITICAL 10.0
- TI-2025-24239 GFI Kerio Control Unsigned System Image Upload Root Code Execution CVSS 4.0CRITICAL 9.4
- TI-2025-24237 GFI Kerio Control GFIAgent Authentication Bypass via Proxy Forwarding CVSS 4.0CRITICAL 9.5
- TI-2025-24524 GFI MailEssentials < 21.8 MultiNode Insecure Deserialization CVSS 3.1HIGH 8.8
- TI-2024-35379 HTTP response splitting in GFI Software Kerio Control CVSS 3.1HIGH 8.8
- TI-2023-10691 An issue was discovered in GFI Kerio Connect 9.4.1 patch 1 (fixed in 10.0.0). CVSS 3.1HIGH 8.8
Sources
- CVE-2025-35940 · CVE Program
- CVE-2025-35940 · NVD
- FIRST EPSS
- GHSA-5wcp-x98w-p534 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences