HOMEVULNERABILITIESCVE-2011-1564
CRITICALPOC

CVE-2011-1564

CWE-189Published: April 5, 2011· Updated: Jun 16, 2026

10.0
CVSS v3.1

Official 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.

NVD Source

Technical Analysis

CVE-2011-1564 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A proof-of-concept (PoC) exploit exists for CVE-2011-1564. While not yet confirmed in active campaigns, the availability of PoC code increases exploitation risk substantially.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.
User Interaction
Scope
Impact
ConfidentialityC
IntegrityC
AvailabilityC
AV:N/AC:L/Au:N/C:C/I:C/A:C

Affected Vendors & Products

realflex1 product(s)
realwin
Source: NVD CPE · 3 total CPE entries

Exploit & PoC Resources

POC AVAILABLEProof-of-concept code exists
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

ADVISORYhttp://secunia.com/advisories/43848
ADVISORYhttp://www.vupen.com/english/advisories/2011/0742
ADVISORYhttp://secunia.com/advisories/43848
ADVISORYhttp://www.vupen.com/english/advisories/2011/0742

All References (14)

→
http://aluigi.org/adv/realwin_6-adv.txtExploit
→
http://secunia.com/advisories/43848Vendor Advisory
→
http://securityreason.com/securityalert/8177
→
http://www.exploit-db.com/exploits/17025Exploit
→
http://www.securityfocus.com/bid/46937Exploit
→
http://www.us-cert.gov/control_systems/pdf/ICS-ALERT-11-080-04.pdfUS Government Resource
→
http://www.vupen.com/english/advisories/2011/0742Vendor Advisory
→
http://aluigi.org/adv/realwin_6-adv.txtExploit
→
http://secunia.com/advisories/43848Vendor Advisory
→
http://securityreason.com/securityalert/8177
→
http://www.exploit-db.com/exploits/17025Exploit
→
http://www.securityfocus.com/bid/46937Exploit
→
http://www.us-cert.gov/control_systems/pdf/ICS-ALERT-11-080-04.pdfUS Government Resource
→
http://www.vupen.com/english/advisories/2011/0742Vendor Advisory

Quick Facts

CVE IDCVE-2011-1564
CVSS Score10.0 / 10
SeverityCRITICAL
WeaknessCWE-189
CISA KEVNo
ExploitPOC
Affected1 vendor(s)
PublishedApr 5, 2011

Related CVEs (CWE-189)

CVE-2007-6355
10.0
CVE-2008-0318
10.0
CVE-2007-4351
10.0
CVE-2007-5902
10.0
CVE-2008-0122
10.0
CVE-2007-6149
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2011-1564 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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