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CVE-2016-6254

32
FAUCET Score

CVE-2016-6254 describes a critical heap-based buffer overflow in the parse_packet function of collectd versions prior to 5.4.3 and 5.5.2. This vulnerability affects collectd across various distributions, including Debian and Fedora. With a CVSS score of 9.1, it allows unauthenticated remote attackers to cause a denial of service or potentially execute arbitrary code by sending a crafted network packet. While there is no known active exploitation, public exploit code, or KEV entry, the vulnerability has garnered significant community discussion, indicating awareness and potential for future exploitation.

Impacted Technologies

VendorProductVersion(s)CPE
8.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
>= 5.4.0, < 5.4.3CPE matchmatch criteria
cpe:2.3:a:collectd:collectd:*:*:*:*:*:*:*:*
>= 5.5.0, < 5.5.2CPE matchmatch criteria
cpe:2.3:a:collectd:collectd:*:*:*:*:*:*:*:*
23CPE matchmatch criteria
cpe:2.3:o:fedoraproject:fedora:23:*:*:*:*:*:*:*
24CPE matchmatch criteria
cpe:2.3:o:fedoraproject:fedora:24:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

9.1CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.2
CvssVersion
3.0

Exploit Intelligence

EPSS Score
5.70%
Probability of exploitation in next 30 days
EPSS Percentile
92.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0570 is in the 87th percentile among its peer group of 36,829 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (5)

github_advisorypatch availablevia nvd_reference
View patch
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux OpenStack Platform 7 (Kilo) Operational ToolsFixed in: collectd
redhatend of lifevia redhat_api
Product: Red Hat OpenStack Platform 8 (Liberty) Operational ToolsFixed in: collectd
redhatend of lifevia redhat_api
Product: Red Hat OpenStack Platform 9 (Mitaka) Operational ToolsFixed in: collectd
redhatend of lifevia redhat_api
Product: Red Hat Storage Console 2Fixed in: collectd

Vendor Advisories (1)

redhatCVE-2016-6254Moderate

collectd: heap overflow in the network plugin

Jul 26, 2016

References

collectd.org / news.shtml
Release NotesVendor Advisory
github.com / collectd/collectd/commit/b589096f907052b3a4da2b9ccc9b0e2e888dfc18
PatchThird Party Advisory
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/CM4W5SJ4OTBGINGIN4NJLXCUZAZANO6J
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/UIZ5UXDOB7BA5NGE2F2I2BL4K6763DHW
debian.org / security/2016/dsa-3636
Third Party Advisory