CVE-2009-4244: realnetworks helix_player
Vulnerability summary
CVE-2009-4244 is a high (CVSS 9.3) vulnerability in realnetworks helix_player. EPSS estimates a 7.24% chance of exploitation in the next 30 days, higher than 94.3% of scored vulnerabilities.
Not severe (CVSS 9.3, network access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Timeline
- 25-01-2010PublishedVulnerability first disclosed.
- 07-08-2024Last modifiedVulnerability information updated.
Description
Heap-based buffer overflow in RealNetworks RealPlayer 10; RealPlayer 10.5 6.0.12.1040 through 6.0.12.1741; RealPlayer 11 11.0.0 through 11.0.4; RealPlayer Enterprise; Mac RealPlayer 10, 10.1, and 11.0; Linux RealPlayer 10; and Helix Player 10.x allows remote attackers to execute arbitrary code via an SIPR codec field with a small length value that triggers incorrect memory allocation.
CVSS metrics
1 score · 1 source · 1 versionEPSS trend
Probability
7.24%
Chance of exploitation in the next 30 days
Percentile
94%
Versus all other CVEs
30-day change
No change 0.00 pp
From 7.24% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: network-reachable, no authentication (CVSS vector). Other conditions: not stated in public data.
Realnetworks3 products
- helix_player10.0 | 11.0.0 | 11.0.1
- realplayer10.0 | 10.5 | 11.0 | 11.0.1 | 11.0.2 | 11.0.3 | 11.0.4 | 11.0.5 | 10.1 | 11.0.0
- realplayer_sp1.0.0 | 1.0.1
1 vendor · 3 products