HIGH
CVE-2022-47520
CWE-125Published: December 18, 2022· Updated: Jun 17, 2026
7.1
CVSS v3.1
Official Description
An issue was discovered in the Linux kernel before 6.0.11. Missing offset validation in drivers/net/wireless/microchip/wilc1000/hif.c in the WILC1000 wireless driver can trigger an out-of-bounds read when parsing a Robust Security Network (RSN) information element from a Netlink packet.
Technical Analysis
CVE-2022-47520 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
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
All References (8)
→
https://github.com/torvalds/linux/commit/cd21d99e595ec1d8721e1058dcdd4f1f7de1d793Patch · Third Party Advisory
→
https://lists.debian.org/debian-lts-announce/2022/12/msg00031.htmlMailing List · Third Party Advisory
→
https://security.netapp.com/advisory/ntap-20230113-0007/Third Party Advisory
→
https://github.com/torvalds/linux/commit/cd21d99e595ec1d8721e1058dcdd4f1f7de1d793Patch · Third Party Advisory
→
https://lists.debian.org/debian-lts-announce/2022/12/msg00031.htmlMailing List · Third Party Advisory
→
https://security.netapp.com/advisory/ntap-20230113-0007/Third Party Advisory
Quick Facts
CVE IDCVE-2022-47520
CVSS Score7.1 / 10
SeverityHIGH
WeaknessCWE-125
CISA KEVNo
Affected3 vendor(s)
PublishedDec 18, 2022
Related CVEs (CWE-125)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2022-47520 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.