CVE-2010-4378
CVE-2010-4378 is a critical-severity vulnerability in Realnetworks Realplayer with a CVSS 2.0 base score of 9.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-119.
Key facts
- Severity: Critical (CVSS 2.0 base score 9.3)
- EPSS exploit prediction: 6% (92nd percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-119
- Affected product: Realnetworks Realplayer
- Published:
- Last modified:
Description
The drv2.dll (aka RV20 decompression) module in RealNetworks RealPlayer 11.0 through 11.1, RealPlayer SP 1.0 through 1.1.5, RealPlayer Enterprise 2.1.2 and 2.1.3, Linux RealPlayer 11.0.2.1744, and possibly HelixPlayer 1.0.6 and other versions, allows remote attackers to execute arbitrary code or cause a denial of service (heap memory corruption) via a crafted value of an unspecified length field in an RV20 video stream.
Frequently asked questions
- What is CVE-2010-4378?
- The drv2.dll (aka RV20 decompression) module in RealNetworks RealPlayer 11.0 through 11.1, RealPlayer SP 1.0 through 1.1.5, RealPlayer Enterprise 2.1.2 and 2.1.3, Linux RealPlayer 11.0.2.1744, and possibly HelixPlayer 1.0.6 and other versions, allows remote attackers to execute arbitrary code or cause a denial of service (heap memory corruption) via a crafted value of an unspecified length field in an RV20 video stream.
- How severe is CVE-2010-4378?
- CVE-2010-4378 has a CVSS 2.0 base score of 9.3, rated critical severity.
- Is CVE-2010-4378 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 6% (92nd percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2010-4378?
- CVE-2010-4378 primarily affects Realnetworks Realplayer. In total, 20 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2010-4378?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
- When was CVE-2010-4378 published?
- CVE-2010-4378 was published on 2010-12-14 and last updated on 2026-06-16.
References
- http://service.real.com/realplayer/security/12102010_player/en/
- http://www.redhat.com/support/errata/RHSA-2010-0981.html
- http://www.securitytracker.com/id?1024861
- http://www.zerodayinitiative.com/advisories/ZDI-10-274
Affected products (20)
- cpe:2.3:a:realnetworks:realplayer:11.0:*:*:*:*:*:*:*
- cpe:2.3:a:realnetworks:realplayer:11.0.1:*:*:*:*:*:*:*
- cpe:2.3:a:realnetworks:realplayer:11.0.2:*:*:*:*:*:*:*
- cpe:2.3:a:realnetworks:realplayer:11.0.3:*:*:*:*:*:*:*
- cpe:2.3:a:realnetworks:realplayer:11.0.4:*:*:*:*:*:*:*
- cpe:2.3:a:realnetworks:realplayer:11.0.5:*:*:*:*:*:*:*
- cpe:2.3:a:realnetworks:realplayer:11.1:*:*:*:*:*:*:*
- cpe:2.3:a:realnetworks:realplayer_sp:1.0.0:*:*:*:*:*:*:*
- cpe:2.3:a:realnetworks:realplayer_sp:1.0.1:*:*:*:*:*:*:*
- cpe:2.3:a:realnetworks:realplayer_sp:1.0.2:*:*:*:*:*:*:*
- cpe:2.3:a:realnetworks:realplayer_sp:1.0.5:*:*:*:*:*:*:*
- cpe:2.3:a:realnetworks:realplayer_sp:1.1:*:*:*:*:*:*:*
- cpe:2.3:a:realnetworks:realplayer_sp:1.1.1:*:*:*:*:*:*:*
- cpe:2.3:a:realnetworks:realplayer_sp:1.1.2:*:*:*:*:*:*:*
- cpe:2.3:a:realnetworks:realplayer_sp:1.1.3:*:*:*:*:*:*:*
- cpe:2.3:a:realnetworks:realplayer_sp:1.1.4:*:*:*:*:*:*:*
- cpe:2.3:a:realnetworks:realplayer_sp:1.1.5:*:*:*:*:*:*:*
- cpe:2.3:a:realnetworks:realplayer:11.0.2.1744:*:*:*:*:*:*:*
- cpe:2.3:a:realnetworks:realplayer:2.1.2:*:enterprise:*:*:*:*:*
- cpe:2.3:a:realnetworks:realplayer:2.1.3:*:enterprise:*:*:*:*:*
More vulnerabilities in Realnetworks Realplayer
- CVE-2011-4256 — Critical (CVSS 10.0): The RV30 codec in RealNetworks RealPlayer before 15.0.0 and Mac RealPlayer before 12.0.0.1703 does not initialize an…
- CVE-2011-4255 — Critical (CVSS 10.0): Unspecified vulnerability in RealNetworks RealPlayer before 15.0.0 and Mac RealPlayer before 12.0.0.1703 allows remote…
- CVE-2011-4254 — Critical (CVSS 10.0): RealNetworks RealPlayer before 15.0.0 allows remote attackers to execute arbitrary code via a crafted RTSP SETUP…
- CVE-2011-4253 — Critical (CVSS 10.0): Unspecified vulnerability in the RV20 codec in RealNetworks RealPlayer before 15.0.0 and Mac RealPlayer before…
- CVE-2011-4250 — Critical (CVSS 10.0): Unspecified vulnerability in the ATRC codec in RealNetworks RealPlayer before 15.0.0 and Mac RealPlayer before…
- CVE-2011-4249 — Critical (CVSS 10.0): Array index error in the RV30 codec in RealNetworks RealPlayer before 15.0.0 allows remote attackers to execute…
All CVEs affecting Realnetworks Realplayer →
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