CVE-2019-8960Public exploitNetwork attack vector

Unauthenticated service crash via fragment timeout mishandling

Published Apr 21, 2020 · Updated Aug 4, 2024

Denial of service in Flexera FlexNet Publisher lmadmin 11.16.2 allows remote attackers to terminate the process via a crafted message. For command 0x2f, the message reader recursively waits when the fragment flag is set, then treats a minus-one no-message return as success and throws an exception. Unauthenticated network access to lmadmin is sufficient, and exploitation interrupts license administration until the process restarts.

CVSS severity7.5
High
EPSS probability1.31%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Denial of service in Flexera FlexNet Publisher lmadmin 11.16.2 allows remote attackers to terminate the process via a crafted message. For command 0x2f, the message reader recursively waits when the fragment flag is set, then treats a minus-one no-message return as success and throws an exception. Unauthenticated network access to lmadmin is sufficient, and exploitation interrupts license administration until the process restarts.

The record

CVE
CVE-2019-8960
Published
Apr 21, 2020
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-754, T1499.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 21, 2020CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

5.0NIST NVDAV:N/AC:L/Au:N/C:N/I:N/A:P
7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-754Improper Check for Unusual or Exceptional Conditions
T1499.004Endpoint Denial of Service: Application or System Exploitation

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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