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CVE-2021-22288

25
FAUCET Score

CVE-2021-22288 is an improper input validation vulnerability affecting ABB SPIET800 and PNI800 modules, which could lead to denial of service or render the module unresponsive. With a CVSS score of 7.5 (HIGH), this vulnerability is easily exploitable over the network without authentication, posing a significant risk of system unavailability. While there is no known public exploit code or active exploitation, the vulnerability has garnered some community discussion and media coverage, indicating awareness within the cybersecurity landscape.

Impacted Technologies

VendorProductVersion(s)CPE
<= a_bCPE matchmatch criteria
cpe:2.3:o:abb:pni800_firmware:*:*:*:*:*:*:*:*
<= a_bCPE matchmatch criteria
cpe:2.3:o:abb:spiet800_firmware:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.06%
Probability of exploitation in next 30 days
EPSS Percentile
61.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0106 is in the 38th percentile among its peer group of 51,506 CVEs.

Social Chatter

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

Media Mentions

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

search.abb.com / library/Download.aspx
Vendor Advisory