How severe is CVE-2019-20028?

CVE-2019-20028 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 high, integrity none, and availability none.

Is CVE-2019-20028 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (61st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-20028?

CVE-2019-20028 primarily affects Nec Sv8100 Firmware. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2019-20028?

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-2019-20028 published?

CVE-2019-20028 was published on 2020-07-29 and last updated on 2026-06-17.

CVE-2019-20028

CVE-2019-20028 is a high-severity vulnerability in Nec Sv8100 Firmware 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)
CVSS v2: 5.0
EPSS exploit prediction: 1% (61st percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Nec Sv8100 Firmware
Published: 2020-07-29
Last modified: 2026-06-17

Description

Aspire-derived NEC PBXes operating InMail software, including all versions of SV8100, SV9100, SL1100 and SL2100 devices allow unauthenticated read-only access to voicemails, greetings, and voice response system content through a system's WebPro administration interface.

Frequently asked questions

What is CVE-2019-20028?: Aspire-derived NEC PBXes operating InMail software, including all versions of SV8100, SV9100, SL1100 and SL2100 devices allow unauthenticated read-only access to voicemails, greetings, and voice response system content through a system's WebPro administration interface.
How severe is CVE-2019-20028?: CVE-2019-20028 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 high, integrity none, and availability none.
Is CVE-2019-20028 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (61st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-20028?: CVE-2019-20028 primarily affects Nec Sv8100 Firmware. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2019-20028?: 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-2019-20028 published?: CVE-2019-20028 was published on 2020-07-29 and last updated on 2026-06-17.

References

https://shadytel.su/files/nec_cve.txt

Affected products (4)

cpe:2.3:o:nec:sv8100_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:nec:sv9100_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:nec:sl1100_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:nec:sl2100_firmware:*:*:*:*:*:*:*:*

More vulnerabilities in Nec Sv8100 Firmware

CVE-2019-20033 — Critical (CVSS 9.8): On Aspire-derived NEC PBXes, including all versions of SV8100 devices, a set of documented, static login credentials…
CVE-2019-20027 — Critical (CVSS 9.8): Aspire-derived NEC PBXes, including the SV8100, SV9100, SL1100 and SL2100 with software releases 7.0 or higher contain…
CVE-2019-20029 — High (CVSS 8.8): An exploitable privilege escalation vulnerability exists in the WebPro functionality of Aspire-derived NEC PBXes,…
CVE-2019-20032 — Medium (CVSS 6.5): An attacker with access to an InMail voicemail box equipped with the find me/follow me feature on Aspire-derived NEC…

All CVEs affecting Nec Sv8100 Firmware →