HIGH
CVE-2022-26490
CWE-120Published: March 6, 2022· Updated: Jun 17, 2026
7.8
CVSS v3.1
Official Description
st21nfca_connectivity_event_received in drivers/nfc/st21nfca/se.c in the Linux kernel through 5.16.12 has EVT_TRANSACTION buffer overflows because of untrusted length parameters.
Technical Analysis
CVE-2022-26490 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), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 7.8.
CVSS v3.1 Vector Breakdown
Exploitability
Attack VectorLocal
Attack ComplexityLow
Privileges Req.Low
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/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 (14)
→
https://github.com/torvalds/linux/commit/4fbcc1a4cb20fe26ad0225679c536c80f1648221Patch · Third Party Advisory
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https://lists.debian.org/debian-lts-announce/2022/07/msg00000.htmlMailing List · Third Party Advisory
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→
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https://security.netapp.com/advisory/ntap-20220429-0004/Third Party Advisory
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https://www.debian.org/security/2022/dsa-5127Third Party Advisory
→
https://www.debian.org/security/2022/dsa-5173Third Party Advisory
→
https://github.com/torvalds/linux/commit/4fbcc1a4cb20fe26ad0225679c536c80f1648221Patch · Third Party Advisory
→
https://lists.debian.org/debian-lts-announce/2022/07/msg00000.htmlMailing List · Third Party Advisory
→
→
→
https://security.netapp.com/advisory/ntap-20220429-0004/Third Party Advisory
→
https://www.debian.org/security/2022/dsa-5127Third Party Advisory
→
https://www.debian.org/security/2022/dsa-5173Third Party Advisory
Quick Facts
CVE IDCVE-2022-26490
CVSS Score7.8 / 10
SeverityHIGH
WeaknessCWE-120
CISA KEVNo
Affected4 vendor(s)
PublishedMar 6, 2022
Related CVEs (CWE-120)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2022-26490 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.