CVE-2026-54365Patch

LOWCVSS 8.7 · HIGH

Signal is active with 1 mentions in latest observed window

Immediate actions

Patch affected systems immediately

Recommended action window: Monitor and triage in normal cycle

NVD description

CentreStack before 17.3 contains an unauthenticated deserialization vulnerability in GSNamespace.dll that allows unauthenticated attackers to create arbitrary local OS user accounts by supplying a crafted base64-encoded XML string to exposed API endpoints. Attackers can send a malicious StorageConfigure parameter to the jsonimportuserbyupn, jsonimportuserbyupnex, or japiimportuserbyupn endpoints to trigger InternalImportAdUserByUPN(), causing GladinetCloudMonitor.exe to invoke the NetUserAdd Windows API with attacker-controlled credentials and create arbitrary directories on the server filesystem.

Back to dashboard

0.5/ 10 priority

Sources & remediation

Other references

Weakness type (CWE)

CWE-306

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

AVAILABLE

Momentum

NONE

Threat summary

Patch or workaround signal is available
1 mentions across 1 observed day

What's happening

Patch or workaround mentioned in 1 signal
Technical details provided in 1 signal
1 total mentions across 1 day

Deep dive

Activity timeline1 mentions / 1d

Signal classification1 categories

Patch

1100.0%

Referenced assets1 URL

By indicator

https://www.valtersit.com/cve/CVE-2026-54365/

Full discourse1 post

Hugo | DevOps | Cybersecurity 🇱🇻@HugoValters91d
Patch
CVE-2026-54365 Unauthenticated deserialization in Centrestack. Attackers create local OS accounts via crafted XML. CVSS 7.5. No patch yet – isolate systems. #CVE #Centrestack #cybersecurityawareness #cybersecurity #infosec #CVEAlert #100daysofcybersecurity #cybersecuritynews #cybersecuritytips #redteam #blueteam #git #github #gitlab https://www.valtersit.com/cve/CVE-2026-54365/
Post summary
The post announces CVE-2026-54365, detailing an unauthenticated deserialization flaw in Centrestack that lets attackers create local OS accounts via crafted XML, assigns a CVSS of 7.5, and advises isolation until a patch is available.
0000049
978 followersView on X

Explore more

Back to dashboard