LOW
CVE-2020-16166
CWE-330Published: July 30, 2020· Updated: Jun 17, 2026
3.7
CVSS v3.1
Official Description
The Linux kernel through 5.7.11 allows remote attackers to make observations that help to obtain sensitive information about the internal state of the network RNG, aka CID-f227e3ec3b5c. This is related to drivers/char/random.c and kernel/time/timer.c.
Technical Analysis
CVE-2020-16166 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.
CVSS v3.1 Vector Breakdown
Exploitability
Attack VectorNetwork
Attack ComplexityHigh
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityLow
IntegrityNone
AvailabilityNone
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
Affected Vendors & Products
Canonical1 product(s)
ubuntu linux
Debian1 product(s)
debian linux
Fedora1 product(s)
fedora
Linux1 product(s)
linux kernel
netapp10 product(s)
active iq unified managercloud volumes ontap mediatore-series santricity os controllerhci bootstrap oshci management nodesolidfiresteelstore cloud integrated storagestoragegridh410c firmwareh410c
openSUSE1 product(s)
leap
Oracle1 product(s)
sd-wan edge
Source: NVD CPE · 21 total CPE entries
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/4525-1/
ADVISORYhttps://usn.ubuntu.com/4526-1/
ADVISORYhttps://usn.ubuntu.com/4525-1/
ADVISORYhttps://usn.ubuntu.com/4526-1/
All References (30)
→
http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00009.htmlMailing List · Third Party Advisory
→
http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00047.htmlMailing List · Third Party Advisory
→
https://arxiv.org/pdf/2012.07432.pdfTechnical Description · Third Party Advisory
→
→
→
https://github.com/torvalds/linux/commit/f227e3ec3b5cad859ad15666874405e8c1bbc1d4Patch · Third Party Advisory
→
https://lists.debian.org/debian-lts-announce/2020/09/msg00025.htmlMailing List · Third Party Advisory
→
https://lists.debian.org/debian-lts-announce/2020/10/msg00032.htmlMailing List · Third Party Advisory
→
https://lists.debian.org/debian-lts-announce/2020/10/msg00034.htmlMailing List · Third Party Advisory
→
https://security.netapp.com/advisory/ntap-20200814-0004/Third Party Advisory
→
https://usn.ubuntu.com/4525-1/Third Party Advisory
→
https://usn.ubuntu.com/4526-1/Third Party Advisory
→
https://www.oracle.com/security-alerts/cpuApr2021.htmlPatch · Third Party Advisory
Quick Facts
CVE IDCVE-2020-16166
CVSS Score3.7 / 10
SeverityLOW
WeaknessCWE-330
CISA KEVNo
Affected7 vendor(s)
PublishedJul 30, 2020
Related CVEs (CWE-330)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2020-16166 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.