CVE-2010-0416

Buffer overflow in the Unescape function in common/util/hxurl.cpp and player/hxclientkit/src...

7.5 HighPublic exploit

Buffer overflow in the Unescape function in common/util/hxurl.cpp and player/hxclientkit/src/CHXClientSink.cpp in Helix Player 1.0.6 and RealPlayer allows remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via a URL argument containing a % (percent) character that is not followed by two hex digits.

Exploit likelihood

11.3%Down 1.5 points since Feb 4, 2022

What each source reports

NVD Score used 7.5

Record: CVE-2010-0416
CVSS 2.0: 7.5 HighAV:N/AC:L/Au:N/C:P/I:P/A:P
Weakness: CWE-119
Updated: 2026-11-02

CVE List No score

Record: CVE-2010-0416
Updated: 2026-11-02

EUVDEUVD-2010-0447 No score

Record: EUVD-2010-0447
Updated: 2026-11-03

GitHub AdvisoriesGHSA-mcf9-pq3p-q6q8 No score

Buffer overflow in the Unescape function in common/util/hxurl.cpp and player/hxclientkit/src...

Record: GHSA-mcf9-pq3p-q6q8
Weakness: CWE-119
Updated: 2026-11-02

Affected products

Affected packages

Affected packages
Package	Affected	Fixed
`HelixPlayer` Red Hat:enterprise_linux:4::as From an advisory covering 8 CVEs	before 1:1.0.6-1.el4_8.1	1:1.0.6-1.el4_8.1
`HelixPlayer-debuginfo` Red Hat:enterprise_linux:4::as From an advisory covering 8 CVEs	before 1:1.0.6-1.el4_8.1	1:1.0.6-1.el4_8.1
`HelixPlayer` Red Hat:enterprise_linux:4::desktop From an advisory covering 8 CVEs	before 1:1.0.6-1.el4_8.1	1:1.0.6-1.el4_8.1
`HelixPlayer-debuginfo` Red Hat:enterprise_linux:4::desktop From an advisory covering 8 CVEs	before 1:1.0.6-1.el4_8.1	1:1.0.6-1.el4_8.1
`HelixPlayer` Red Hat:enterprise_linux:4::es From an advisory covering 8 CVEs	before 1:1.0.6-1.el4_8.1	1:1.0.6-1.el4_8.1
`HelixPlayer-debuginfo` Red Hat:enterprise_linux:4::es From an advisory covering 8 CVEs	before 1:1.0.6-1.el4_8.1	1:1.0.6-1.el4_8.1
`HelixPlayer` Red Hat:enterprise_linux:4::ws From an advisory covering 8 CVEs	before 1:1.0.6-1.el4_8.1	1:1.0.6-1.el4_8.1
`HelixPlayer-debuginfo` Red Hat:enterprise_linux:4::ws From an advisory covering 8 CVEs	before 1:1.0.6-1.el4_8.1	1:1.0.6-1.el4_8.1

Public exploits

Links only. Every CVE stores no exploit code.

Public exploits
Source	Link	Date
Exploit-DB	Helix Player 11.0.2 - Encoded URI Processing Buffer Overflow	2007-07-03

History

History
Recorded	Changed	Sources
Nov 6, 2026	affected, facts
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, Exploit-DB, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2010-0416 is a high vulnerability (CVSS 7.5) in Realnetworks Helix Player, published February 18, 2010. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 11.3%, the 96th percentile. No source names a fixed version.

References

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