HIGH
CVE-2022-36123
NVD-CWE-noinfoPublished: July 29, 2022· Updated: Jun 17, 2026
7.8
CVSS v3.1
Official Description
The Linux kernel before 5.18.13 lacks a certain clear operation for the block starting symbol (.bss). This allows Xen PV guest OS users to cause a denial of service or gain privileges.
Technical Analysis
CVE-2022-36123 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 (12)
→
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.18.13Release Notes · Third Party Advisory
→
https://github.com/sickcodes/security/blob/master/advisories/SICK-2022-128.mdExploit · Patch · Third Party Advisory
→
https://github.com/torvalds/linux/commit/74a0032b8524ee2bd4443128c0bf9775928680b0Patch · Third Party Advisory
→
https://github.com/torvalds/linux/commit/96e8fc5818686d4a1591bb6907e7fdb64ef29884Patch · Third Party Advisory
→
https://security.netapp.com/advisory/ntap-20220901-0003/Third Party Advisory
→
https://sick.codes/sick-2022-128Exploit · Patch · Third Party Advisory
→
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.18.13Release Notes · Third Party Advisory
→
https://github.com/sickcodes/security/blob/master/advisories/SICK-2022-128.mdExploit · Patch · Third Party Advisory
→
https://github.com/torvalds/linux/commit/74a0032b8524ee2bd4443128c0bf9775928680b0Patch · Third Party Advisory
→
https://github.com/torvalds/linux/commit/96e8fc5818686d4a1591bb6907e7fdb64ef29884Patch · Third Party Advisory
→
https://security.netapp.com/advisory/ntap-20220901-0003/Third Party Advisory
→
https://sick.codes/sick-2022-128Exploit · Patch · Third Party Advisory
Quick Facts
CVE IDCVE-2022-36123
CVSS Score7.8 / 10
SeverityHIGH
WeaknessNVD-CWE-noinfo
CISA KEVNo
Affected2 vendor(s)
PublishedJul 29, 2022
Related CVEs (NVD-CWE-noinfo)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2022-36123 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.