What’s Vulnerable › Vulnerabilities

CVE-2014-0777: OServer Out of Bounds Read

• Severity: high (CVSS 7.8 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2014-04-11 · updated 2026-06-17
• Weakness: CWE-125

Description

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.

Affected products

• Ioserver Opc Server: all versions
• IOServer OPC Drivers: through 1.0.20

References

• http://www.ioserver.com/
• https://www.cisa.gov/news-events/ics-advisories/icsa-14-100-01
• http://ics-cert.us-cert.gov/advisories/ICSA-14-100-01

Get alerted when CVE-2014-0777 or the next vulnerability affects your stack