CVE-2004-2027

Buffer overflow in Icecast 2.0.0 and earlier allows remote attackers to cause a denial of service (crash) via a long Basic Authorization header that triggers an out-of-bounds read.

Published: 2004-05-10 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2004-2027 is rated Moderate Risk (48.1/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 2.08%). Review affected assets and schedule remediation.

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

Exploit prediction scoring system (EPSS) score for CVE-2004-2027

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 1.63% 2.08% +0.45%
2 2025-03-30 1.45% 1.63% +0.18%
3 2025-03-29 — 1.45% —

Full EPSS history (8 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2004-2027

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-2004-2027

OS Trackers for CVE-2004-2027

vendor priority summary link
debian not yet assigned CVE-2004-2027 not yet assigned priority: Debian including 1 source packages (icecast2), 4 status rows across 4 suites (bookworm, bullseye, sid, trixie): resolved 4. https://security-tracker.debian.org/tracker/CVE-2004-2027
gentoo normal CVE-2004-2027: 1 GLSA(s) (200405-10), 1 atom(s) (net-misc/icecast); latest impact normal. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2004-2027

Affected software / configurations for CVE-2004-2027

Vendor Product Version Raw CPE
icecast icecast 1.3.0 cpe:2.3:a:icecast:icecast:1.3.0:*:*:*:*:*:*:*
icecast icecast 1.3.5 cpe:2.3:a:icecast:icecast:1.3.5:*:*:*:*:*:*:*
icecast icecast 1.3.5.1 cpe:2.3:a:icecast:icecast:1.3.5.1:*:*:*:*:*:*:*
icecast icecast 1.3.7 cpe:2.3:a:icecast:icecast:1.3.7:*:*:*:*:*:*:*
icecast icecast 1.3.7.1 cpe:2.3:a:icecast:icecast:1.3.7.1:*:*:*:*:*:*:*
icecast icecast 1.3.8 cpe:2.3:a:icecast:icecast:1.3.8:*:*:*:*:*:*:*
icecast icecast 1.3.9 cpe:2.3:a:icecast:icecast:1.3.9:*:*:*:*:*:*:*
icecast icecast 1.3.9.1 cpe:2.3:a:icecast:icecast:1.3.9.1:*:*:*:*:*:*:*
icecast icecast 1.3.9.2 cpe:2.3:a:icecast:icecast:1.3.9.2:*:*:*:*:*:*:*
icecast icecast 1.3.10 cpe:2.3:a:icecast:icecast:1.3.10:*:*:*:*:*:*:*
icecast icecast 1.3.10.1 cpe:2.3:a:icecast:icecast:1.3.10.1:*:*:*:*:*:*:*
icecast icecast 1.3.11 cpe:2.3:a:icecast:icecast:1.3.11:*:*:*:*:*:*:*
icecast icecast 1.3.12 cpe:2.3:a:icecast:icecast:1.3.12:*:*:*:*:*:*:*
icecast icecast 2.0.0 cpe:2.3:a:icecast:icecast:2.0.0:*:*:*:*:*:*:*

References for CVE-2004-2027

cvelogic Threat Intelligence