CVE-2007-4938

Exp

Heap-based buffer overflow in libmpdemux/aviheader.c in MPlayer 1.0rc1 and earlier allows remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via a .avi file with certain large "indx truck size" and nEntriesInuse values, and a certain wLongsPerEntry value.

Published: 2007-09-18 Last update: 2026-04-23 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2007-4938 is rated High Exploit Risk (84.2/100): CVSS High severity, with high exploitation likelihood (EPSS 16.05%, 96th percentile). 3 public exploit reference(s) are indexed (Exploit-DB). EPSS rose +5.72% over the last day, indicating growing attacker interest. Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2007-4938

EDB-ID Source Kind Published Link
30578 exploit_db edb 2007-09-12 Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2007-4938

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 10.33% 16.05% +5.72%
2 2026-05-07 9.97% 10.33% +0.36%
3 2026-01-24 — 9.97% —

Full EPSS history (22 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2007-4938

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.6 2.0 HIGH
AV:N/AC:H/Au:N/C:C/I:C/A:C Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:H)
Exploitation requires uncommon or highly specific conditions.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:C)
Complete confidentiality impact.
Integrity impact (I:C)
Complete integrity impact.
Availability impact (A:C)
Complete availability impact.
 4.9 10.0 [email protected]

Weakness enumeration for CVE-2007-4938

OS Trackers for CVE-2007-4938

vendor priority summary link
debian not yet assigned CVE-2007-4938 not yet assigned priority: Debian including 1 source packages (mplayer), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2007-4938
ubuntu low CVE-2007-4938 low priority: Ubuntu including 1 source packages (mplayer), 5 status rows across 5 suites (dapper, edgy, feisty, gutsy, upstream): released 3, needs-triage 1, not-affected 1. https://ubuntu.com/security/CVE-2007-4938

Affected software / configurations for CVE-2007-4938

Vendor Product Version Raw CPE
mplayer mplayer 1.0_rc1 cpe:2.3:a:mplayer:mplayer:1.0_rc1:*:*:*:*:*:*:*
sgi irix — cpe:2.3:o:sgi:irix:*:*:*:*:*:*:*:*

References for CVE-2007-4938

cvelogic Threat Intelligence