CVE-2017-7401

Incorrect interaction of the parse_packet() and parse_part_sign_sha256() functions in network.c in collectd 5.7.1 and earlier allows remote attackers to cause a denial of service (infinite loop) of a collectd instance (configured with "SecurityLevel None" and with empty "AuthFile" options) via a crafted UDP packet.

Published: 2017-04-03 Last update: 2026-05-13 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2017-7401 is rated Moderate Risk (56.1/100): CVSS High severity, with medium exploitation likelihood (EPSS 0.75%). 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-2017-7401

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 2026-06-09 0.42% 0.75% +0.33%
2 2026-05-21 0.98% 0.42% -0.56%
3 2025-11-21 — 0.98% —

Full EPSS history (12 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2017-7401

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 3.0 HIGH
CVSS:3.0/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-2017-7401

OS Trackers for CVE-2017-7401

vendor priority summary link
debian not yet assigned CVE-2017-7401 not yet assigned priority: Debian including 1 source packages (collectd), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2017-7401
redhat medium — https://access.redhat.com/security/cve/CVE-2017-7401
suse medium CVE-2017-7401 severity moderate: SUSE including 216 source package names (collectd, collectd-4.9.4-0.31.1, …), 287 product×package rows across 9 product lines (SUSE Lifecycle Management Server 1.3, SUSE Linux Enterprise Module for Basesystem 15 SP2, … (9 product lines)): Fixed 255, Known Not Affected 32. https://www.suse.com/security/cve/CVE-2017-7401/
ubuntu medium CVE-2017-7401 medium priority: Ubuntu including 1 source packages (collectd), 15 status rows across 15 suites (artful, bionic, cosmic, disco, eoan, focal, groovy, hirsute, impish, precise, trusty, upstream, xenial, yakkety, zesty): not-affected 8, ignored 4, released 3. https://ubuntu.com/security/CVE-2017-7401

Affected software / configurations for CVE-2017-7401

Vendor Product Version Raw CPE
collectd collectd <= 5.7.1 cpe:2.3:a:collectd:collectd:*:*:*:*:*:*:*:*

References for CVE-2017-7401

cvelogic Threat Intelligence