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Fencer Vulns
critical 9.3

CVE-2009-4248 json

Buffer overflow in the RTSPProtocol::HandleSetParameterRequest function in client/core/rtspprotocol.cpp in RealNetworks RealPlayer 10, Real…

published 2010-01-25 16 y ago modified 2026-06-16 4 mo ago also EUVD-2009-4217

cvss
9.3
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
6.8%
EPSS 6.8% chance of exploitation in 30 days, percentile 94%
public exploits
0
none known

Summary

Buffer overflow in the RTSPProtocol::HandleSetParameterRequest function in client/core/rtspprotocol.cpp 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 and 10.1, Linux RealPlayer 10, and Helix Player 10.x allows remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via a crafted RTSP SET_PARAMETER request.

Patch / fix

  • HelixPlayer RHEL 4 1:1.0.6-1.el4_8.1

red hat advisories RHSA-2010:0094

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2009-4248 updated cvss 6.8

RealPlayer: RTSP SET_PARAMETER buffer overflow

  • Red Hat Enterprise Linux AS version 4 HelixPlayer 1.0.6-1.el4_8.1 Red Hat Enterprise Linux Desktop version 4 HelixPlayer 1.0.6-1.el4_8.1 Red Hat Enterprise Linux ES version 4 HelixPlayer 1.0.6-1.el4_8.1 Red Hat Enterprise Linux WS version 4 HelixPlayer 1.0.6-1.el4_8.1
    fixed: vendor fix RHSA-2010:0094

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

6.81% chance of exploitation in the next 30 days, higher than 94% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 2.0 9.3 AV:N/AC:M/Au:N/C:C/I:C/A:C

Classification

Weakness
  • CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.