CVE-2017-7401: Incorrect interaction of the parse_packet() and parse_part_sign_sha256() functions in network.c in collectd 5.

Q: How do I fix CVE-2017-7401?

collectd: upgrade to newer than 5.7.1. Exact commands for each OS are on this page.

Q: Is CVE-2017-7401 being exploited?

CVE-2017-7401 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2017-7401 affect?

CVE-2017-7401 affects collectd. Severity is high (CVSS 7.5). 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 "Secu

Q: How urgent is CVE-2017-7401?

Priority 54/100. High severity; EPSS top 9%: very likely to be exploited; Remotely exploitable, no login, no user action

This month

HIGH 7.5REMOTEUPGRADE

CVE-2017-7401 is a high-severity flaw (CVSS 7.5) affecting collectd. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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.

Why this priority

High severity
EPSS top 9%: very likely to be exploited
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	4.0% (top 9%)
CISA exploited list	No
Weakness	CWE-835
Published	2017-04-03
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: collectd

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2017-04-03 14:59 UTCPublished CVE record published
2026-06-17 01:24 UTCUpdated Record last modified

collectd collectd UPGRADE

Affected: <= 5.7.1

Fixed in: newer than 5.7.1

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy collectd || rpm -q collectd || collectd --version

2. UPGRADE to newer than 5.7.1 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade collectd

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade collectd

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2017-7401?

collectd: upgrade to newer than 5.7.1. Exact commands for each OS are on this page.

Is CVE-2017-7401 being exploited?

CVE-2017-7401 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2017-7401 affect?

CVE-2017-7401 affects collectd. Severity is high (CVSS 7.5). 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 "Secu

How urgent is CVE-2017-7401?

Priority 54/100. High severity; EPSS top 9%: very likely to be exploited; Remotely exploitable, no login, no user action

Related CVEs

CVE-2017-18240 MEDIUM 5.5 UPGRADE The Gentoo app-admin/collectd package before 5.7.2-r1 sets the ownership of PID file directory to the collectd
CVE-2017-16820 CRITICAL 9.8 UPGRADE The csnmp_read_table function in snmp.c in the SNMP plugin in collectd before 5.6.3 is susceptible to a double

References

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