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CVE-2019-20027

31
FAUCET Score

CVE-2019-20027 affects Aspire-derived NEC PBXes, including the SV8100, SV9100, SL1100, and SL2100 with software releases 7.0 or higher. This critical vulnerability (CVSS 9.8) allows for authentication with a blank username and password due to incorrect configuration, leading to complete compromise of confidentiality, integrity, and availability. The attack is network-based and requires no user interaction or special privileges. Currently, there is no evidence of active exploitation, nor are there publicly available exploit modules or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
>= 7.0CPE matchmatch criteria
cpe:2.3:o:nec:sv8100_firmware:*:*:*:*:*:*:*:*
>= 7.0CPE matchmatch criteria
cpe:2.3:o:nec:sv9100_firmware:*:*:*:*:*:*:*:*
>= 7.0CPE matchmatch criteria
cpe:2.3:o:nec:sl1100_firmware:*:*:*:*:*:*:*:*
>= 7.0CPE matchmatch criteria
cpe:2.3:o:nec:sl2100_firmware:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.37%
Probability of exploitation in next 30 days
EPSS Percentile
69.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0137 is in the 56th percentile among its peer group of 36,835 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

shadytel.su / files/nec_cve.txt
Third Party Advisory