CRITICAL
CVE-2010-0121
NVD-CWE-OtherPublished: December 14, 2010· Updated: Jun 16, 2026
10.0
CVSS v3.1
Official Description
The cook codec in RealNetworks RealPlayer 11.0 through 11.1, RealPlayer SP 1.0 through 1.1.5, Mac RealPlayer 11.0 through 12.0.0.1444, and Linux RealPlayer 11.0.2.1744 does not properly perform initialization, which has unspecified impact and attack vectors.
Technical Analysis
CVE-2010-0121 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 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
Apple1 product(s)
mac os x
Linux1 product(s)
linux kernel
realnetworks2 product(s)
realplayerrealplayer sp
Source: NVD CPE · 21 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.
Official Patches & Advisories
All References (4)
Quick Facts
CVE IDCVE-2010-0121
CVSS Score10.0 / 10
SeverityCRITICAL
WeaknessNVD-CWE-Other
CISA KEVNo
Affected3 vendor(s)
PublishedDec 14, 2010
Related CVEs (NVD-CWE-Other)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2010-0121 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.