CVE-2016-6254

critical

Published 2016-08-19 · Modified 2026-05-06

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CVSS v3

9.1

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H

CVSS v4 NEW

—

not yet in upstream

VIR risk

9.1

Description

Heap-based buffer overflow in the parse_packet function in network.c in collectd before 5.4.3 and 5.x before 5.5.2 allows remote attackers to cause a denial of service (daemon crash) or possibly execute arbitrary code via a crafted network packet.

Predictions

Exploit likelihood

94%

Patch ETA

—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

No mitigations published for this CVE yet.

The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.

✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here with source_tier=community-verified.

OS impact

OS	Version	Status	Fixed in
sles		affected
debian	bookworm	fixed	`5.5.2-1`
debian	bullseye	fixed	`5.5.2-1`
debian	forky	fixed	`5.5.2-1`
debian	sid	fixed	`5.5.2-1`
debian	trixie	fixed	`5.5.2-1`
debian	8.0	affected
fedora	23	affected
fedora	24	affected

Application impact

Vendor	Product	Versions	Fixed
collectd	collectd	`{"startIncluding":"5.4.0","endExcluding":"5.4.3"}`	`5.4.3`

References

CWEs

CWE-119

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.