Is CVE-2011-1564 in the CISA KEV catalog?

No. CVE-2011-1564 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2011-1564?

CVE-2011-1564 has a CVSS v2 base score of 10.0 (HIGH).

What is the EPSS score for CVE-2011-1564?

CVE-2011-1564 has an EPSS score of 18.63% (97th percentile), estimating the probability of exploitation in the next 30 days.

CVE & CISA-KEV Catalog

CVE-2011-1564

HIGHEPSS 97th pctl

10.0

CVSS v2

NVD

Description

Multiple integer overflows in the HMI application in DATAC RealFlex RealWin 2.1 (Build 6.1.10.10) and earlier allow remote attackers to execute arbitrary code via crafted (1) On_FC_MISC_FCS_MSGBROADCAST and (2) On_FC_MISC_FCS_MSGSEND packets, which trigger a heap-based buffer overflow.

CWE-189

CVSS v2 Vector

No CVSS vector data available.

Exploit Intelligence

18.63%probability of exploitation in 30 days

97thpercentile

Very high risk: more likely to be exploited than 97% of all known CVEs.

References

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-04-29.