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CVE-2018-6922

21
FAUCET Score

CVE-2018-6922 describes a denial-of-service vulnerability in FreeBSD versions prior to 11.2-RELEASE-p1, 11.1-RELEASE-p12, and 10.4-RELEASE-p10. An inefficient TCP segment reassembly algorithm allows an unauthenticated attacker to degrade network performance and consume excessive CPU resources with relatively low bandwidth. This medium-severity vulnerability (CVSS 5.3) has a low impact on availability and no impact on confidentiality or integrity. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
10.4CPE matchmatch criteria
cpe:2.3:o:freebsd:freebsd:10.4:-:*:*:*:*:*:*
10.4CPE matchmatch criteria
cpe:2.3:o:freebsd:freebsd:10.4:p1:*:*:*:*:*:*
10.4CPE matchmatch criteria
cpe:2.3:o:freebsd:freebsd:10.4:p3:*:*:*:*:*:*
10.4CPE matchmatch criteria
cpe:2.3:o:freebsd:freebsd:10.4:p4:*:*:*:*:*:*
10.4CPE matchmatch criteria
cpe:2.3:o:freebsd:freebsd:10.4:p5:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

5.3MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
LOW
Exploitability Score
3.9
Impact Score
1.4
CvssVersion
3.0

Exploit Intelligence

EPSS Score
3.23%
Probability of exploitation in next 30 days
EPSS Percentile
86.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0323 is in the 82nd percentile among its peer group of 23,705 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

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

Remediation

Patch Available

Vendor Patches (1)

oraclepatch availablevia nvd_reference
View patch

References

security.netapp.com / advisory/ntap-20180815-0002
Third Party Advisory
freebsd.org / security/advisories/FreeBSD-SA-18:08.tcp.asc
PatchVendor Advisory
oracle.com / technetwork/security-advisory/cpujan2019-5072801.html
Patch
securityfocus.com / bid/105058
Third Party AdvisoryVDB Entry
securitytracker.com / id/1041425
Third Party AdvisoryVDB Entry