CRITICAL
CVE-2007-0321
NVD-CWE-OtherPublished: February 23, 2007· Updated: Jun 16, 2026
9.3
CVSS v3.1
Official Description
Buffer overflow in the Update Service Agent ActiveX Control in isusweb.dll for Macrovision FLEXnet Connect (formerly InstallShield Update Service) allows remote attackers to execute arbitrary code via the Download method.
Technical Analysis
CVE-2007-0321 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.
CVSS v3.1 Vector Breakdown
Exploitability
Attack VectorNetwork
Attack ComplexityM
Privileges Req.
User Interaction
Scope
Impact
ConfidentialityC
IntegrityC
AvailabilityC
AV:N/AC:M/Au:N/C:C/I:C/A:C
Affected Vendors & Products
macrovision1 product(s)
flexnet connect
Source: NVD CPE · 1 total CPE entries
Exploit & PoC Resources
NO KNOWN EXPLOITNo public exploit confirmed at this time
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.
All References (14)
→
http://www.kb.cert.org/vuls/id/847993US Government Resource
→
http://www.kb.cert.org/vuls/id/847993US Government Resource
Quick Facts
CVE IDCVE-2007-0321
CVSS Score9.3 / 10
SeverityCRITICAL
WeaknessNVD-CWE-Other
CISA KEVNo
Affected1 vendor(s)
PublishedFeb 23, 2007
Related CVEs (NVD-CWE-Other)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2007-0321 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.