MEDIUM
CVE-2019-3874
CWE-400Published: March 25, 2019· Updated: Jun 17, 2026
6.5
CVSS v3.1
Official Description
The SCTP socket buffer used by a userspace application is not accounted by the cgroups subsystem. An attacker can use this flaw to cause a denial of service attack. Kernel 3.10.x and 4.18.x branches are believed to be vulnerable.
Technical Analysis
CVE-2019-3874 requires adjacent network access, limiting remote exploitation but still posing risk in shared or local network environments.
The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.
A successful exploit results in availability disruption (denial of service), with a CVSS base score of 6.5.
CVSS v3.1 Vector Breakdown
Exploitability
Attack VectorAdjacent
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityNone
IntegrityNone
AvailabilityHigh
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected Vendors & Products
Exploit & PoC Resources
NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.
Official Patches & Advisories
ADVISORYhttps://usn.ubuntu.com/3979-1/
ADVISORYhttps://usn.ubuntu.com/3980-1/
ADVISORYhttps://usn.ubuntu.com/3980-2/
ADVISORYhttps://usn.ubuntu.com/3981-1/
ADVISORYhttps://usn.ubuntu.com/3981-2/
ADVISORYhttps://usn.ubuntu.com/3982-1/
ADVISORYhttps://usn.ubuntu.com/3982-2/
ADVISORYhttps://usn.ubuntu.com/3979-1/
ADVISORYhttps://usn.ubuntu.com/3980-1/
ADVISORYhttps://usn.ubuntu.com/3980-2/
ADVISORYhttps://usn.ubuntu.com/3981-1/
ADVISORYhttps://usn.ubuntu.com/3981-2/
ADVISORYhttps://usn.ubuntu.com/3982-1/
ADVISORYhttps://usn.ubuntu.com/3982-2/
All References (26)
→
https://access.redhat.com/errata/RHSA-2019:3309Third Party Advisory
→
https://access.redhat.com/errata/RHSA-2019:3517Third Party Advisory
→
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3874Issue Tracking · Patch · Third Party Advisory
→
https://lists.debian.org/debian-lts-announce/2020/09/msg00025.htmlMailing List · Third Party Advisory
→
https://security.netapp.com/advisory/ntap-20190411-0003/Third Party Advisory
→
https://usn.ubuntu.com/3979-1/Third Party Advisory
→
https://usn.ubuntu.com/3980-1/Third Party Advisory
→
https://usn.ubuntu.com/3980-2/Third Party Advisory
→
https://usn.ubuntu.com/3981-1/Third Party Advisory
→
https://usn.ubuntu.com/3981-2/Third Party Advisory
→
https://usn.ubuntu.com/3982-1/Third Party Advisory
→
https://usn.ubuntu.com/3982-2/Third Party Advisory
→
https://access.redhat.com/errata/RHSA-2019:3309Third Party Advisory
→
https://access.redhat.com/errata/RHSA-2019:3517Third Party Advisory
Quick Facts
CVE IDCVE-2019-3874
CVSS Score6.5 / 10
SeverityMEDIUM
WeaknessCWE-400
CISA KEVNo
Affected5 vendor(s)
PublishedMar 25, 2019
Related CVEs (CWE-400)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2019-3874 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWatch. CVE data is provided under the NVD usage policy.