HOMEVULNERABILITIESCVE-2022-36765
HIGH

CVE-2022-36765

CWE-680Published: January 9, 2024· Updated: Jun 17, 2026

7.8
CVSS v3.1

Official Description

EDK2 is susceptible to a vulnerability in the CreateHob() function, allowing a user to trigger a integer overflow to buffer overflow via a local network. Successful exploitation of this vulnerability may result in a compromise of confidentiality, integrity, and/or availability.

NVD Source

Technical Analysis

CVE-2022-36765 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

tianocore1 product(s)
edk2
Source: NVD CPE · 1 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://github.com/tianocore/edk2/security/advisories/GHSA-ch4w-v7m3-g8wx
ADVISORYhttps://github.com/tianocore/edk2/security/advisories/GHSA-ch4w-v7m3-g8wx

All References (5)

→
https://github.com/tianocore/edk2/security/advisories/GHSA-ch4w-v7m3-g8wxThird Party Advisory
→
https://lists.fedoraproject.org/archives/list/[email protected]/message/SJ42V7O7F4OU6R7QSQQECLB6LDHKZIMQ/
→
https://github.com/tianocore/edk2/security/advisories/GHSA-ch4w-v7m3-g8wxThird Party Advisory
→
https://lists.debian.org/debian-lts-announce/2025/06/msg00007.html
→
https://lists.fedoraproject.org/archives/list/[email protected]/message/SJ42V7O7F4OU6R7QSQQECLB6LDHKZIMQ/

Quick Facts

CVE IDCVE-2022-36765
CVSS Score7.8 / 10
SeverityHIGH
WeaknessCWE-680
CISA KEVNo
Affected1 vendor(s)
PublishedJan 9, 2024

Related CVEs (CWE-680)

CVE-2021-21832
9.8
CVE-2022-35289
9.8
CVE-2018-8787
9.8
CVE-2020-13576
9.8
CVE-2018-8786
9.8
CVE-2024-33078
9.8

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2022-36765 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.COM. CVE data is provided under the NVD usage policy.
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