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CVE-2021-40171

20
FAUCET Score

CVE-2021-40171 describes a vulnerability in the SecuritasHome home alarm system (firmware version HPGW-G 0.0.2.23F BG_U-ITR-F1-BD_BL.A30.20181117) where the system fails to notify users of an ongoing RF jamming attack. This allows an attacker to disrupt legitimate alarm traffic without the owner's knowledge, impacting the system's availability. Rated with a CVSS score of 5.3 (Medium), this vulnerability is easily exploitable over the network with low attack complexity and requires no user interaction. The primary impact is a denial of service, as the system's ability to communicate is compromised. Currently, there is no evidence of active exploitation, nor is public exploit code available in Metasploit, Nuclei, or ExploitDB. The vulnerability has received minimal community discussion and media coverage, indicating a low level of public attention.

Impacted Technologies

VendorProductVersion(s)CPE
hpgw-g_0.0.2.23f_bg_u-itr-f1-bd_bl.a30.20181117CPE matchmatch criteria
cpe:2.3:o:securitashome:securitashome_alarm_system_firmware:hpgw-g_0.0.2.23f_bg_u-itr-f1-bd_bl.a30.20181117:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.3MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
LOW
Exploitability Score
3.9
Impact Score
1.4
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.92%
Probability of exploitation in next 30 days
EPSS Percentile
56.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0092 is in the 35th percentile among its peer group of 23,705 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

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

Remediation

Remediation records are not available for this CVE.

References

diva-portal.org / smash/get/diva2:1600180/FULLTEXT04.pdf
Third Party Advisory
securitashome.se / product.html/securitashome
Vendor Advisory