HIGH
CVE-2022-29581
CWE-911Published: May 17, 2022· Updated: Jun 17, 2026
7.8
CVSS v3.1
Official Description
Improper Update of Reference Count vulnerability in net/sched of Linux Kernel allows local attacker to cause privilege escalation to root. This issue affects: Linux Kernel versions prior to 5.18; version 4.14 and later versions.
Technical Analysis
CVE-2022-29581 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
ADVISORYhttp://packetstormsecurity.com/files/167386/Kernel-Live-Patch-Security-Notice-LSN-0086-1.html
ADVISORYhttp://packetstormsecurity.com/files/168191/Kernel-Live-Patch-Security-Notice-LSN-0089-1.html
ADVISORYhttp://packetstormsecurity.com/files/167386/Kernel-Live-Patch-Security-Notice-LSN-0086-1.html
All References (14)
→
http://packetstormsecurity.com/files/167386/Kernel-Live-Patch-Security-Notice-LSN-0086-1.htmlThird Party Advisory · VDB Entry
→
http://packetstormsecurity.com/files/168191/Kernel-Live-Patch-Security-Notice-LSN-0089-1.htmlExploit · Third Party Advisory · VDB Entry
→
http://www.openwall.com/lists/oss-security/2022/05/18/2Mailing List · Patch · Third Party Advisory
→
→
https://kernel.dance/#3db09e762dc79584a69c10d74a6b98f89a9979f8Patch · Vendor Advisory
→
https://security.netapp.com/advisory/ntap-20220629-0005/Third Party Advisory
→
https://www.debian.org/security/2022/dsa-5173Third Party Advisory
→
http://packetstormsecurity.com/files/167386/Kernel-Live-Patch-Security-Notice-LSN-0086-1.htmlThird Party Advisory · VDB Entry
→
http://packetstormsecurity.com/files/168191/Kernel-Live-Patch-Security-Notice-LSN-0089-1.htmlExploit · Third Party Advisory · VDB Entry
→
http://www.openwall.com/lists/oss-security/2022/05/18/2Mailing List · Patch · Third Party Advisory
→
→
https://kernel.dance/#3db09e762dc79584a69c10d74a6b98f89a9979f8Patch · Vendor Advisory
→
https://security.netapp.com/advisory/ntap-20220629-0005/Third Party Advisory
→
https://www.debian.org/security/2022/dsa-5173Third Party Advisory
Quick Facts
CVE IDCVE-2022-29581
CVSS Score7.8 / 10
SeverityHIGH
WeaknessCWE-911
CISA KEVNo
Affected4 vendor(s)
PublishedMay 17, 2022
Related CVEs (CWE-911)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2022-29581 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.