HOMEVULNERABILITIESCVE-2022-2735
HIGH

CVE-2022-2735

CWE-276Published: September 6, 2022· Updated: Jun 17, 2026

7.8
CVSS v3.1

Official Description

A vulnerability was found in the PCS project. This issue occurs due to incorrect permissions on a Unix socket used for internal communication between PCS daemons. A privilege escalation could happen by obtaining an authentication token for a hacluster user. With the "hacluster" token, this flaw allows an attacker to have complete control over the cluster managed by PCS.

NVD Source

Technical Analysis

CVE-2022-2735 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

clusterlabs1 product(s)
pcs
Debian1 product(s)
debian linux
Source: NVD CPE · 2 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

PATCHhttps://bugzilla.redhat.com/show_bug.cgi?id=2116815
PATCHhttps://bugzilla.redhat.com/show_bug.cgi?id=2116815
ADVISORYhttps://access.redhat.com/security/cve/CVE-2022-2735
ADVISORYhttps://www.debian.org/security/2022/dsa-5226
ADVISORYhttps://www.openwall.com/lists/oss-security/2022/09/01/4
ADVISORYhttps://access.redhat.com/security/cve/CVE-2022-2735
ADVISORYhttps://www.debian.org/security/2022/dsa-5226
ADVISORYhttps://www.openwall.com/lists/oss-security/2022/09/01/4

All References (8)

→
https://access.redhat.com/security/cve/CVE-2022-2735Third Party Advisory
→
https://bugzilla.redhat.com/show_bug.cgi?id=2116815Issue Tracking · Patch · Third Party Advisory
→
https://www.debian.org/security/2022/dsa-5226Third Party Advisory
→
https://www.openwall.com/lists/oss-security/2022/09/01/4Mailing List · Release Notes · Third Party Advisory
→
https://access.redhat.com/security/cve/CVE-2022-2735Third Party Advisory
→
https://bugzilla.redhat.com/show_bug.cgi?id=2116815Issue Tracking · Patch · Third Party Advisory
→
https://www.debian.org/security/2022/dsa-5226Third Party Advisory
→
https://www.openwall.com/lists/oss-security/2022/09/01/4Mailing List · Release Notes · Third Party Advisory

Quick Facts

CVE IDCVE-2022-2735
CVSS Score7.8 / 10
SeverityHIGH
WeaknessCWE-276
CISA KEVNo
Affected2 vendor(s)
PublishedSep 6, 2022

Related CVEs (CWE-276)

CVE-2022-42150
10.0
CVE-2023-29131
10.0
CVE-2020-29492
10.0
CVE-2025-40585
9.9
CVE-2019-19896
9.9
CVE-2021-34182
9.8

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2022-2735 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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