CVE-2007-1246: The DMO_VideoDecoder_Open function in loader/dmo/DMO_VideoDecoder.c in MPlayer 1.0rc1 and earlier, as used in

Q: How do I fix CVE-2007-1246?

mplayer: upgrade to newer than 1.0_rc1. Exact commands for each OS are on this page.

Q: Is CVE-2007-1246 being exploited?

CVE-2007-1246 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-2007-1246 affect?

CVE-2007-1246 affects mplayer. Severity is high (CVSS 7.6). The DMO_VideoDecoder_Open function in loader/dmo/DMO_VideoDecoder.c in MPlayer 1.0rc1 and earlier, as used in xine-lib, does not set the biSize before use in a memcpy, which allows user-assisted remote attackers to cause a buffer overflow a

Q: How urgent is CVE-2007-1246?

Priority 50/100. High severity; EPSS top 7%: very likely to be exploited

This month

HIGH 7.6UPGRADE

CVE-2007-1246 is a high-severity flaw (CVSS 7.6) affecting mplayer. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The DMO_VideoDecoder_Open function in loader/dmo/DMO_VideoDecoder.c in MPlayer 1.0rc1 and earlier, as used in xine-lib, does not set the biSize before use in a memcpy, which allows user-assisted remote attackers to cause a buffer overflow and possibly execute arbitrary code, a different vulnerability than CVE-2007-1387.

Why this priority

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

A fixed release or distro patch exists.

Risk facts

CVSS score	7.6 (High)
EPSS exploit chance	5.7% (top 7%)
CISA exploited list	No
Weakness	CWE-119
Published	2007-03-03
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

2007-03-03 19:19 UTCPublished CVE record published
2026-06-16 22:37 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.

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-2007-1246?

mplayer: upgrade to newer than 1.0_rc1. Exact commands for each OS are on this page.

Is CVE-2007-1246 being exploited?

CVE-2007-1246 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-2007-1246 affect?

CVE-2007-1246 affects mplayer. Severity is high (CVSS 7.6). The DMO_VideoDecoder_Open function in loader/dmo/DMO_VideoDecoder.c in MPlayer 1.0rc1 and earlier, as used in xine-lib, does not set the biSize before use in a memcpy, which allows user-assisted remote attackers to cause a buffer overflow a

How urgent is CVE-2007-1246?

Priority 50/100. High severity; EPSS top 7%: 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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