CVE-2004-0433: Multiple buffer overflows in the Real-Time Streaming Protocol (RTSP) client for (1) MPlayer before 1.0pre4 and

This month

HIGH 10.0DOWNGRADEDOWNGRADE

CVE-2004-0433 is a high-severity flaw (CVSS 10.0) affecting mplayer, xine-lib. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Multiple buffer overflows in the Real-Time Streaming Protocol (RTSP) client for (1) MPlayer before 1.0pre4 and (2) xine lib (xine-lib) before 1-rc4, when playing Real RTSP (realrtsp) streams, allow remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via (a) long URLs, (b) long Real server responses, or (c) long Real Data Transport (RDT) packets.

Why this priority

Critical severity
EPSS top 8%: very likely to be exploited

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	10.0 (High)
EPSS exploit chance	5.1% (top 8%)
CISA exploited list	No
Published	2004-08-18
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

2004-08-18 04:00 UTCPublished CVE record published
2026-06-16 22:05 UTCUpdated Record last modified

mplayer mplayer DOWNGRADE

Affected: 1.0_pre3try2

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.0_pre3try2

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 1.0_pre3try2 (Debian / Ubuntu)

apt-cache madison mplayer sudo apt install mplayer=<VERSION_BEFORE_1.0_pre3try2> sudo apt-mark hold mplayer

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list mplayer sudo dnf downgrade mplayer-<VERSION_BEFORE_1.0_pre3try2> sudo dnf versionlock add mplayer

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

xine xine-lib DOWNGRADE

Affected: 1_beta1 · 1_beta2 · 1_beta3 · 1_beta4 · 1_beta5 · 1_beta6 · 1_beta7 · 1_beta8

Fixed in: no fixed release known

Safe to downgrade to: a release before 1_beta1

1. Check installed version

apt-cache policy xine-lib || rpm -q xine-lib || xine-lib --version

2. No fixed release: DOWNGRADE to a release before 1_beta1 (Debian / Ubuntu)

apt-cache madison xine-lib sudo apt install xine-lib=<VERSION_BEFORE_1_beta1> sudo apt-mark hold xine-lib

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list xine-lib sudo dnf downgrade xine-lib-<VERSION_BEFORE_1_beta1> sudo dnf versionlock add xine-lib

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

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-2004-0433?

mplayer: downgrade or apply the listed mitigation; xine-lib: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2004-0433 being exploited?

CVE-2004-0433 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-2004-0433 affect?

CVE-2004-0433 affects mplayer, xine-lib. Severity is high (CVSS 10.0). Multiple buffer overflows in the Real-Time Streaming Protocol (RTSP) client for (1) MPlayer before 1.0pre4 and (2) xine lib (xine-lib) before 1-rc4, when playing Real RTSP (realrtsp) streams, allow remote attackers to cause a denial of serv

How urgent is CVE-2004-0433?

Priority 58/100. Critical severity; EPSS top 8%: very likely to be exploited

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

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