CVE-2014-0777

OServer Out of Bounds Read

8.3

CVE-2014-0777 is a vulnerability (CVSS 8.3) in Ioserver Opc Server, published April 11, 2014. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.40%, the 84th percentile. No source names a fixed version.

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.

Exploit likelihood

2.40%Up 1.3 points since Feb 4, 2022

What each source reports

CVE List Score used 8.3

OServer Out of Bounds Read

Record: CVE-2014-0777
CVSS 2.0: 8.3 AV:N/AC:M/Au:N/C:P/I:P/A:C
Weakness: CWE-125
Updated: 2026-11-02

EUVDEUVD-2014-0808 8.3

Record: EUVD-2014-0808
CVSS 2.0: 8.3 HighAV:N/AC:M/Au:N/C:P/I:P/A:C
Updated: 2026-11-02

GitHub AdvisoriesGHSA-p75m-894q-gmxh No score

The Modbus slave/outstation driver in the OPC Drivers 1.0.20 and earlier in IOServer OPC Server...

Record: GHSA-p75m-894q-gmxh
Weakness: CWE-119, CWE-125
Updated: 2026-11-02

NVD 8.3

Record: CVE-2014-0777
CVSS 2.0: 8.3 HighAV:N/AC:M/Au:N/C:P/I:P/A:C
CVSS 2.0: 7.8 HighAV:N/AC:L/Au:N/C:N/I:N/A:C
Weakness: CWE-125, CWE-119
Updated: 2026-11-02

Affected products

History

History
When	Changed	Sources
2026-11-02	aliases	EUVD
2026-11-02	created	CVE List, GitHub Advisories, NVD

Exploit likelihood

What each source reports

Affected products

History

References