HOMEVULNERABILITIESCVE-2019-18954
MEDIUM

CVE-2019-18954

CWE-668Published: November 14, 2019· Updated: Jun 17, 2026

5.3
CVSS v3.1

Official Description

Pomelo v2.2.5 allows external control of critical state data. A malicious user input can corrupt arbitrary methods and attributes in template/game-server/app/servers/connector/handler/entryHandler.js because certain internal attributes can be overwritten via a conflicting name. Hence, a malicious attacker can manipulate internal attributes by adding additional attributes to user input.

NVD Source

Technical Analysis

CVE-2019-18954 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityNone
IntegrityNone
AvailabilityLow
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Affected Vendors & Products

netease1 product(s)
pomelo
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
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Official Patches & Advisories

ADVISORYhttps://github.com/NetEase/pomelo/issues/1149
ADVISORYhttps://github.com/cl0udz/vulnerabilities/tree/master/pomelo-critical-state-manipulation
ADVISORYhttps://github.com/NetEase/pomelo/issues/1149
ADVISORYhttps://github.com/cl0udz/vulnerabilities/tree/master/pomelo-critical-state-manipulation

All References (4)

→
https://github.com/NetEase/pomelo/issues/1149Issue Tracking · Third Party Advisory
→
https://github.com/cl0udz/vulnerabilities/tree/master/pomelo-critical-state-manipulationExploit · Third Party Advisory
→
https://github.com/NetEase/pomelo/issues/1149Issue Tracking · Third Party Advisory
→
https://github.com/cl0udz/vulnerabilities/tree/master/pomelo-critical-state-manipulationExploit · Third Party Advisory

Quick Facts

CVE IDCVE-2019-18954
CVSS Score5.3 / 10
SeverityMEDIUM
WeaknessCWE-668
CISA KEVNo
Affected1 vendor(s)
PublishedNov 14, 2019

Related CVEs (CWE-668)

CVE-2012-1846
10.0
CVE-2019-8779
10.0
CVE-2022-1467
9.9
CVE-2019-16541
9.9
CVE-2017-18129
9.8
CVE-2022-25643
9.8

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2019-18954 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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