HOMEVULNERABILITIESCVE-2018-20033
CRITICAL

CVE-2018-20033

CWE-770Published: February 25, 2019· Updated: Jun 17, 2026

9.8
CVSS v3.1

Official Description

A Remote Code Execution vulnerability in lmgrd and vendor daemon components of FlexNet Publisher version 11.16.1.0 and earlier could allow a remote attacker to corrupt the memory by allocating / deallocating memory, loading lmgrd or the vendor daemon and causing the heartbeat between lmgrd and the vendor daemon to stop. This would force the vendor daemon to shut down. No exploit of this vulnerability has been demonstrated.

NVD Source

Technical Analysis

CVE-2018-20033 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.

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 9.8.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

flexera1 product(s)
flexnet publisher
Oracle1 product(s)
communications lsms
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://www.oracle.com/security-alerts/cpuoct2021.html
PATCHhttps://www.oracle.com/security-alerts/cpuoct2021.html
ADVISORYhttps://secuniaresearch.flexerasoftware.com/advisories/85979/
ADVISORYhttps://secuniaresearch.flexerasoftware.com/advisories/85979/

All References (6)

→
http://www.securityfocus.com/bid/109155Broken Link
→
https://secuniaresearch.flexerasoftware.com/advisories/85979/Not Applicable · Vendor Advisory
→
https://www.oracle.com/security-alerts/cpuoct2021.htmlPatch · Third Party Advisory
→
http://www.securityfocus.com/bid/109155Broken Link
→
https://secuniaresearch.flexerasoftware.com/advisories/85979/Not Applicable · Vendor Advisory
→
https://www.oracle.com/security-alerts/cpuoct2021.htmlPatch · Third Party Advisory

Quick Facts

CVE IDCVE-2018-20033
CVSS Score9.8 / 10
SeverityCRITICAL
WeaknessCWE-770
CISA KEVNo
Affected2 vendor(s)
PublishedFeb 25, 2019

Related CVEs (CWE-770)

CVE-2022-3273
9.8
CVE-2019-17067
9.8
CVE-2025-11832
9.8
CVE-2023-25156
9.8
CVE-2022-3456
9.8
CVE-2022-3439
9.8

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2018-20033 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.
← All Vulnerabilities·Search for CVE-2018-20033·NVD