CVE-2006-6172: Buffer overflow in the asmrp_eval function in the RealMedia RTSP stream handler (asmrp.c) for Real Media input

Q: How do I fix CVE-2006-6172?

mplayer: upgrade to newer than 1.0_rc1; real media input plugin: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Q: Is CVE-2006-6172 being exploited?

CVE-2006-6172 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2006-6172 affect?

CVE-2006-6172 affects mplayer, real media input plugin. Severity is high (CVSS 7.5). Buffer overflow in the asmrp_eval function in the RealMedia RTSP stream handler (asmrp.c) for Real Media input plugin, as used in (1) xine/xine-lib, (2) MPlayer 1.0rc1 and earlier, and possibly others, allows remote attackers to cause a den

Q: How urgent is CVE-2006-6172?

Priority 55/100. High severity; EPSS top 7%: very likely to be exploited; Public exploit reference

This month

HIGH 7.5UPGRADEMITIGATE

CVE-2006-6172 is a high-severity flaw (CVSS 7.5) affecting mplayer, real media input plugin. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Buffer overflow in the asmrp_eval function in the RealMedia RTSP stream handler (asmrp.c) for Real Media input plugin, as used in (1) xine/xine-lib, (2) MPlayer 1.0rc1 and earlier, and possibly others, allows remote attackers to cause a denial of service and possibly execute arbitrary code via a rulebook with a large number of rulematches.

Why this priority

High severity
EPSS top 7%: very likely to be exploited
Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	7.5 (High)
EPSS exploit chance	5.8% (top 7%)
CISA exploited list	No
Published	2006-11-30
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: mplayer · xine

Last updated 2026-06-16 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2006-11-30 15:28 UTCPublished CVE record published
2026-06-16 22:32 UTCUpdated Record last modified

mplayer mplayer UPGRADE

Affected: <= 1.0_rc1

Fixed in: newer than 1.0_rc1

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy mplayer || rpm -q mplayer || mplayer --version

2. UPGRADE to newer than 1.0_rc1 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade mplayer

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade mplayer

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

xine real media input plugin MITIGATE

Affected: all versions

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy real-media-input-plugin || rpm -q real-media-input-plugin || real-media-input-plugin --version

No fixed or unaffected release known

Apply the vendor mitigation from the advisory, disable the affected feature, or restrict network access.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2006-6172?

mplayer: upgrade to newer than 1.0_rc1; real media input plugin: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2006-6172 being exploited?

CVE-2006-6172 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2006-6172 affect?

CVE-2006-6172 affects mplayer, real media input plugin. Severity is high (CVSS 7.5). Buffer overflow in the asmrp_eval function in the RealMedia RTSP stream handler (asmrp.c) for Real Media input plugin, as used in (1) xine/xine-lib, (2) MPlayer 1.0rc1 and earlier, and possibly others, allows remote attackers to cause a den

How urgent is CVE-2006-6172?

Priority 55/100. High severity; EPSS top 7%: very likely to be exploited; Public exploit reference

Related CVEs

CVE-2022-38866 MEDIUM 5.5 DOWNGRADE DOWNGRADE Certain The MPlayer Project products are vulnerable to Buffer Overflow via read_avi_header() of libmpdemux/avi
CVE-2022-38865 MEDIUM 5.5 DOWNGRADE DOWNGRADE Certain The MPlayer Project products are vulnerable to Divide By Zero via the function demux_avi_read_packet o
CVE-2022-38864 MEDIUM 5.5 DOWNGRADE DOWNGRADE Certain The MPlayer Project products are vulnerable to Buffer Overflow via the function mp_unescape03() of lib
CVE-2022-38863 MEDIUM 5.5 DOWNGRADE DOWNGRADE Certain The MPlayer Project products are vulnerable to Buffer Overflow via function mp_getbits() of libmpdemux
CVE-2022-38862 HIGH 7.8 DOWNGRADE DOWNGRADE Certain The MPlayer Project products are vulnerable to Buffer Overflow via function play() of libaf/af.c:639

References

← Back to latest CVEs