HIGH
CVE-2020-9383
CWE-125Published: February 25, 2020· Updated: Jun 17, 2026
7.1
CVSS v3.1
Official Description
An issue was discovered in the Linux kernel 3.16 through 5.5.6. set_fdc in drivers/block/floppy.c leads to a wait_til_ready out-of-bounds read because the FDC index is not checked for errors before assigning it, aka CID-2e90ca68b0d2.
Technical Analysis
CVE-2020-9383 requires local access, meaning attackers must already have a foothold on the target system.
Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.
A successful exploit results in complete confidentiality breach (data exposure), availability disruption (denial of service), with a CVSS base score of 7.1.
CVSS v3.1 Vector Breakdown
Exploitability
Attack VectorLocal
Attack ComplexityLow
Privileges Req.Low
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityNone
AvailabilityHigh
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
Affected Vendors & Products
Canonical1 product(s)
ubuntu linux
Debian1 product(s)
debian linux
Linux1 product(s)
linux kernel
netapp10 product(s)
active iq unified managercloud backupdata availability serviceshci management nodesolidfiresteelstore cloud integrated storagesolidfire baseboard management controller firmwaresolidfire baseboard management controllerh410c firmwareh410c
openSUSE1 product(s)
leap
Source: NVD CPE · 18 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/4342-1/
ADVISORYhttps://usn.ubuntu.com/4344-1/
ADVISORYhttps://usn.ubuntu.com/4345-1/
ADVISORYhttps://usn.ubuntu.com/4346-1/
ADVISORYhttps://usn.ubuntu.com/4342-1/
ADVISORYhttps://usn.ubuntu.com/4344-1/
ADVISORYhttps://usn.ubuntu.com/4345-1/
ADVISORYhttps://usn.ubuntu.com/4346-1/
All References (24)
→
http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00039.htmlMailing List · Third Party Advisory
→
https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git/commit/?id=2f9ac30a54dc0181ddac3705cdcf4775d863c530Mailing List · Patch · Vendor Advisory
→
https://github.com/torvalds/linux/commit/2e90ca68b0d2f5548804f22f0dd61145516171e3Patch · Third Party Advisory
→
https://lists.debian.org/debian-lts-announce/2020/06/msg00011.htmlMailing List · Third Party Advisory
→
https://lists.debian.org/debian-lts-announce/2020/06/msg00012.htmlMailing List · Third Party Advisory
→
https://lists.debian.org/debian-lts-announce/2020/06/msg00013.htmlMailing List · Third Party Advisory
→
https://security.netapp.com/advisory/ntap-20200313-0003/Third Party Advisory
→
https://usn.ubuntu.com/4342-1/Third Party Advisory
→
https://usn.ubuntu.com/4344-1/Third Party Advisory
→
https://usn.ubuntu.com/4345-1/Third Party Advisory
→
https://usn.ubuntu.com/4346-1/Third Party Advisory
→
https://www.debian.org/security/2020/dsa-4698Third Party Advisory
→
http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00039.htmlMailing List · Third Party Advisory
→
https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git/commit/?id=2f9ac30a54dc0181ddac3705cdcf4775d863c530Mailing List · Patch · Vendor Advisory
→
https://github.com/torvalds/linux/commit/2e90ca68b0d2f5548804f22f0dd61145516171e3Patch · Third Party Advisory
Quick Facts
CVE IDCVE-2020-9383
CVSS Score7.1 / 10
SeverityHIGH
WeaknessCWE-125
CISA KEVNo
Affected5 vendor(s)
PublishedFeb 25, 2020
Related CVEs (CWE-125)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2020-9383 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.