Is CVE-2007-1804 actively exploited?

A proof-of-concept exploit is publicly available for CVE-2007-1804, but active exploitation has not been confirmed.

Can CVE-2007-1804 be exploited remotely?

Yes. CVE-2007-1804 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2007-1804?

CVE-2007-1804 has a CVSS score of 7.8 (HIGH).

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HIGHPOC

CVE-2007-1804

NVD-CWE-OtherPublished: April 2, 2007· Updated: Jun 16, 2026

7.8

CVSS v3.1

Official Description

PulseAudio 0.9.5 allows remote attackers to cause a denial of service (daemon crash) via (1) a PA_PSTREAM_DESCRIPTOR_LENGTH value of FRAME_SIZE_MAX_ALLOW sent on TCP port 9875, which triggers a p->export assertion failure in do_read; (2) a PA_PSTREAM_DESCRIPTOR_LENGTH value of 0 sent on TCP port 9875, which triggers a length assertion failure in pa_memblock_new; or (3) an empty packet on UDP port 9875, which triggers a t assertion failure in pa_sdp_parse; and allows remote authenticated users to cause a denial of service (daemon crash) via a crafted packet on TCP port 9875 that (4) triggers a maxlength assertion failure in pa_memblockq_new, (5) triggers a size assertion failure in pa_xmalloc, or (6) plays a certain sound file.

NVD Source

Technical Analysis

CVE-2007-1804 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A proof-of-concept (PoC) exploit exists for CVE-2007-1804. While not yet confirmed in active campaigns, the availability of PoC code increases exploitation risk substantially.