CVE-2007-6103

Exp

I Hear U (IHU) 0.5.6 and earlier allows remote attackers to cause (1) a denial of service (infinite loop) via a packet that contains zero in the size field in its header, which is improperly handled by the Receiver::processPacket function; and (2) a denial of service (daemon crash) via an (a) IHU_INFO_INIT or a (b) IHU_INFO_RING packet that does not specify the mode, which is improperly handled by the Player::ring function in Player.cpp.

Published: 2007-11-23 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2007-6103 is rated High Exploit Risk (61.9/100): CVSS Medium severity, with high exploitation likelihood (EPSS 4.96%, 91th percentile). 2 public exploit reference(s) are indexed (Exploit-DB). 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-2007-6103

EDB-ID Source Kind Published Link
30791 exploit_db edb 2007-11-19 Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2007-6103

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 15.91% 4.96% -10.95%
2 2026-03-03 15.43% 15.91% +0.48%
3 2025-09-12 — 15.43% —

Full EPSS history (16 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2007-6103

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.0 2.0 MEDIUM
AV:N/AC:L/Au:N/C:N/I:N/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:P)
Partial availability impact.
 10.0 2.9 [email protected]

Weakness enumeration for CVE-2007-6103

OS Trackers for CVE-2007-6103

vendor priority summary link
ubuntu low CVE-2007-6103 low priority: Ubuntu including 1 source packages (ihu), 9 status rows across 9 suites (dapper, edgy, feisty, gutsy, hardy, intrepid, jaunty, karmic, upstream): ignored 4, released 4, needs-triage 1. https://ubuntu.com/security/CVE-2007-6103

Affected software / configurations for CVE-2007-6103

Vendor Product Version Raw CPE
ihu i_hear_u <= 0.5.6 cpe:2.3:a:ihu:i_hear_u:*:*:*:*:*:*:*:*

References for CVE-2007-6103

cvelogic Threat Intelligence