How severe is CVE-2019-8963?

CVE-2019-8963 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2019-8963 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (47th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-8963?

CVE-2019-8963 affects Flexera Flexnet Publisher. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-8963?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2019-8963 published?

CVE-2019-8963 was published on 2023-03-29 and last updated on 2026-06-17.

CVE-2019-8963

CVE-2019-8963 is a high-severity vulnerability in Flexera Flexnet Publisher with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 1% (47th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Flexera Flexnet Publisher
Published: 2023-03-29
Last modified: 2026-06-17

Description

A Denial of Service (DoS) vulnerability was discovered in FlexNet Publisher's lmadmin 11.16.5, when doing a crafted POST request on lmadmin using the web-based tool.

Frequently asked questions

What is CVE-2019-8963?: A Denial of Service (DoS) vulnerability was discovered in FlexNet Publisher's lmadmin 11.16.5, when doing a crafted POST request on lmadmin using the web-based tool.
How severe is CVE-2019-8963?: CVE-2019-8963 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2019-8963 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (47th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-8963?: CVE-2019-8963 affects Flexera Flexnet Publisher. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-8963?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2019-8963 published?: CVE-2019-8963 was published on 2023-03-29 and last updated on 2026-06-17.

References

https://community.flexera.com/t5/FlexNet-Publisher-Knowledge-Base/CVE-2019-8963-Remediated-in-FlexNet-Publisher/ta-p/148768

Affected products (1)

cpe:2.3:a:flexera:flexnet_publisher:11.16.5:*:*:*:*:*:*:*

More vulnerabilities in Flexera Flexnet Publisher

CVE-2018-20033 — Critical (CVSS 9.8): A Remote Code Execution vulnerability in lmgrd and vendor daemon components of FlexNet Publisher version 11.16.1.0 and…
CVE-2020-12080 — High (CVSS 7.5): A Denial of Service vulnerability has been identified in FlexNet Publisher's lmadmin.exe version 11.16.6. A certain…
CVE-2020-12081 — High (CVSS 7.5): An information disclosure vulnerability has been identified in FlexNet Publisher lmadmin.exe 11.14.0.2. The web portal…
CVE-2019-8961 — High (CVSS 7.5): A Denial of Service vulnerability related to stack exhaustion has been identified in FlexNet Publisher lmadmin.exe…
CVE-2019-8960 — High (CVSS 7.5): A Denial of Service vulnerability related to command handling has been identified in FlexNet Publisher lmadmin.exe…
CVE-2018-20034 — High (CVSS 7.5): A Denial of Service vulnerability related to adding an item to a list in lmgrd and vendor daemon components of FlexNet…

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