CVE-2003-0835: Multiple buffer overflows in asf_http_request of MPlayer before 0.92 allows remote attackers to execute arbitr

This month

HIGH 7.5DOWNGRADE

CVE-2003-0835 is a high-severity flaw (CVSS 7.5) affecting mplayer. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Multiple buffer overflows in asf_http_request of MPlayer before 0.92 allows remote attackers to execute arbitrary code via an ASX header with a long hostname.

Why this priority

High severity
EPSS top 8%: very likely to be exploited
Public exploit reference

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

Risk facts

CVSS score	7.5 (High)
EPSS exploit chance	5.0% (top 8%)
CISA exploited list	No
Published	2003-11-17
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: mplayer

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

Am I affected?

Timeline

2003-11-17 05:00 UTCPublished CVE record published
2026-06-16 22:03 UTCUpdated Record last modified

mplayer mplayer DOWNGRADE

Affected: 0.90 · 0.90_pre · 0.90_rc · 0.90_rc4 · 0.91 · 1.0_pre1

Fixed in: no fixed release known

Safe to downgrade to: a release before 0.90

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 0.90 (Debian / Ubuntu)

apt-cache madison mplayer sudo apt install mplayer=<VERSION_BEFORE_0.90> sudo apt-mark hold mplayer

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

dnf --showduplicates list mplayer sudo dnf downgrade mplayer-<VERSION_BEFORE_0.90> 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.

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Exploit-DB: MPlayer 0.9/1.0 - Streaming ASX Header Parsing Buffer Overrun

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-2003-0835?

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

Is CVE-2003-0835 being exploited?

CVE-2003-0835 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-2003-0835 affect?

CVE-2003-0835 affects mplayer. Severity is high (CVSS 7.5). Multiple buffer overflows in asf_http_request of MPlayer before 0.92 allows remote attackers to execute arbitrary code via an ASX header with a long hostname.

How urgent is CVE-2003-0835?

Priority 54/100. High severity; EPSS top 8%: 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