CVE-2004-1002

Integer underflow in pppd in cbcp.c for ppp 2.4.1 allows remote attackers to cause a denial of service (daemon crash) via a CBCP packet with an invalid length value that causes pppd to access an incorrect memory location.

Published: 2005-03-01 Last update: 2026-04-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2004-1002 is rated Moderate Risk (57.8/100): CVSS High 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-2004-1002

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 2025-03-30 3.14% 2.08% -1.06%
2 2025-03-29 2.08% 3.14% +1.06%
3 2025-03-17 — 2.08% —

Full EPSS history (8 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2004-1002

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.9 3.6 [email protected]
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-2004-1002

OS Trackers for CVE-2004-1002

vendor priority summary link
debian not yet assigned CVE-2004-1002 not yet assigned priority: Debian including 1 source packages (ppp), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2004-1002
redhat — — https://access.redhat.com/security/cve/CVE-2004-1002

Vendor comments (NVD) for CVE-2004-1002

  • Red Hat (2006-08-30T00:00:00)

    This issue is only will only cause a denial of service on the connection the attacker is using. It therefore is not a security issue.

Affected software / configurations for CVE-2004-1002

Vendor Product Version Raw CPE
samba ppp 2.4.1 cpe:2.3:a:samba:ppp:2.4.1:*:*:*:*:*:*:*
canonical ubuntu_linux 4.10 cpe:2.3:o:canonical:ubuntu_linux:4.10:*:*:*:*:*:*:*

References for CVE-2004-1002

URL Tags
http://www.securityfocus.com/archive/1/379450 Broken Link Third Party Advisory VDB Entry
https://exchange.xforce.ibmcloud.com/vulnerabilities/17874 Third Party Advisory VDB Entry
https://www.ubuntu.com/usn/usn-12-1/ Third Party Advisory
cvelogic Threat Intelligence