OServer Out of Bounds Read
Priority MEDIUM 41CWE-125Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Medium
- Impact type
- Code execution
- Confidentiality · integrity · availability
- Partial · Partial · Complete
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · CNA. Fix status from CNA. Impact type from CWE-119 and the CVSS impact.
Summary
The Modbus slave/outstation driver in the OPC Drivers 1.0.20 and earlier in IOServer OPC Server allows remote attackers to cause a denial of service (out-of-bounds read and daemon crash) via a crafted packet.
Why it matters now
EPSS 0.02403 84th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| IOServer | OPC Drivers | up to 1.0.20 | — | No fix listed | CNA |
- OPC Drivers VendorIOServer Affected up to 1.0.20 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2014-0777
- 2026-10-03 Alias added: GHSA-p75m-894q-gmxh
References
Sources
- CVE-2014-0777 · CVE Program
- CVE-2014-0777 · NVD
- FIRST EPSS
- GHSA-p75m-894q-gmxh · GitHub Advisory Database · CC BY 4.0
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