How severe is CVE-2018-8939?

CVE-2018-8939 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2018-8939 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (70th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-8939?

CVE-2018-8939 affects Progress Whatsup Gold. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-8939?

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

When was CVE-2018-8939 published?

CVE-2018-8939 was published on 2018-05-01 and last updated on 2026-06-17.

CVE-2018-8939

CVE-2018-8939 is a critical-severity vulnerability in Progress Whatsup Gold with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-918.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 1% (70th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-918
Affected product: Progress Whatsup Gold
Published: 2018-05-01
Last modified: 2026-06-17

Description

An SSRF issue was discovered in NmAPI.exe in Ipswitch WhatsUp Gold before 2018 (18.0). Malicious actors can submit specially crafted requests via the NmAPI executable to (1) gain unauthorized access to the WhatsUp Gold system, (2) obtain information about the WhatsUp Gold system, or (3) execute remote commands.

Frequently asked questions

What is CVE-2018-8939?: An SSRF issue was discovered in NmAPI.exe in Ipswitch WhatsUp Gold before 2018 (18.0). Malicious actors can submit specially crafted requests via the NmAPI executable to (1) gain unauthorized access to the WhatsUp Gold system, (2) obtain information about the WhatsUp Gold system, or (3) execute remote commands.
How severe is CVE-2018-8939?: CVE-2018-8939 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2018-8939 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (70th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-8939?: CVE-2018-8939 affects Progress Whatsup Gold. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-8939?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2018-8939 published?: CVE-2018-8939 was published on 2018-05-01 and last updated on 2026-06-17.

References

https://docs.ipswitch.com/NM/WhatsUpGold2018/01_ReleaseNotes/index.htm

Affected products (1)

cpe:2.3:a:progress:whatsup_gold:*:*:*:*:*:*:*:*

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