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CVE-2018-20031

25
FAUCET Score

CVE-2018-20031 describes a Denial of Service (DoS) vulnerability in FlexNet Publisher versions 11.16.1.0 and earlier, impacting products like Flexera and Oracle Communications LSMS. A remote unauthenticated attacker can exploit this by sending specific messages to lmgrd or the vendor daemon, disrupting their heartbeat and causing the vendor daemon to shut down. This vulnerability has a CVSS score of 7.5 (HIGH) due to its network-based attack vector, low complexity, and high impact on availability. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 11.16.1.0CPE matchmatch criteria
cpe:2.3:a:flexera:flexnet_publisher:*:*:*:*:*:*:*:*
>= 13.1, <= 13.4CPE matchmatch criteria
cpe:2.3:a:oracle:communications_lsms:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
2.24%
Probability of exploitation in next 30 days
EPSS Percentile
81.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0224 is in the 66th percentile among its peer group of 51,485 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

oraclepatch availablevia nvd_reference
View patch

References

secuniaresearch.flexerasoftware.com / advisories/85979
Not ApplicableVendor Advisory
oracle.com / security-alerts/cpuoct2021.html
PatchThird Party Advisory
securityfocus.com / bid/109155
Broken Link