Is CVE-2004-1311 in the CISA KEV catalog?

No. CVE-2004-1311 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2004-1311?

CVE-2004-1311 has a CVSS v2 base score of 10.0 (HIGH).

What is the EPSS score for CVE-2004-1311?

CVE-2004-1311 has an EPSS score of 5.18% (91th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2004-1311?

Upgrade mplayer on debian 11 to 1.0~pre6a-1 or later.

CVE & CISA-KEV Catalog

CVE-2004-1311

HIGHEPSS 91th pctl

10.0

CVSS v2

NVD

Description

Integer overflow in the real_setup_and_get_header function in real.c for Unix MPlayer 1.0pre5 allows remote attackers to cause a denial of service (application crash) and possibly execute arbitrary code via a Real RTSP streaming media file with a -1 content-length field, which leads to a heap-based buffer overflow.

How to fix

Remediation Available

mplayerDebian

Fixed in:1.0~pre6a-1CVE-2004-1311

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v2 Vector

No CVSS vector data available.

Exploit Intelligence

5.18%probability of exploitation in 30 days

91stpercentile

High risk: more likely to be exploited than 91% of all known CVEs.

References

Vendor Advisory1

idefense.com

Other references4

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-04-16.