9.8

CVE-2019-20027: nec sl1100_firmware Improper Authentication

CVSS: 9.8v3.1CriticalModified
Published 29-07-2020Last modified 05-08-2024
Open JSON

Vulnerability summary

CVE-2019-20027 is a critical (CVSS 9.8) Improper Authentication vulnerability in nec sl1100_firmware. EPSS estimates a 1.37% chance of exploitation in the next 30 days, higher than 71.7% of scored vulnerabilities.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
9.8/10
010
Critical · v3.1 (NVD)
EPSS score
1.37%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 29-07-2020
    PublishedVulnerability first disclosed.
  2. 05-08-2024
    Last modifiedVulnerability information updated.

Description

Aspire-derived NEC PBXes, including the SV8100, SV9100, SL1100 and SL2100 with software releases 7.0 or higher contain the possibility if incorrectly configured to allow a blank username and password combination to be entered as a valid, successfully authenticating account.

CVSS metrics

2 scores · 1 source · 2 versions

EPSS trend

Probability

1.37%

Chance of exploitation in the next 30 days

Percentile

72%

Versus all other CVEs

30-day change

0.00 pp

From 1.37% on 21-09-2026

21-09-202621-10-2026
EPSS score
1.37%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Nec4 products

1 vendor · 4 products

References

1 links