WIN-911 2021 Incorrect Default Permissions

published 2022-02-24 4 y ago modified 2026-06-17 4 mo ago also EUVD-2022-28842

cvss: 5.6; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.2%; EPSS 0.2% chance of exploitation in 30 days, percentile 11%
public exploits: 0; none known

WIN-911 2021 R1 and R2 are vulnerable to a permissions misconfiguration that may allow an attacker to locally write files to the Program Announcer directory and elevate permissions whenever the program is executed.

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

cisa ICSA-22-053-03 updated 2022-02-22 cvss 5.6

WIN-911 2021

WIN-911 2021 R1 5.21.10 WIN-911 2021 R2 5.21.17
affected: mitigation supportdesk.win911.com

From CISA ICS and IT advisories (CSAF, https://github.com/cisagov/CSAF), a U.S. Government work; changed: reduced to products, statuses and remediations. CISA notification · csaf

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: partial
Assessed: 18 mo ago (2025-04-16)

Exploit prediction

0.21% chance of exploitation in the next 30 days, higher than 11% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	5.6	CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:L
NVD	3.1	7.8	CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
NVD	2.0	4.4	AV:L/AC:M/Au:N/C:P/I:P/A:P

Affected products

WIN-911 WIN-911

Classification

Weakness

CWE-276 Incorrect Default Permissions

References

supportdesk.win911.com /support/solutions/articles/24000074683-win-911-2021-r1-r2-file-permission-vulnerability
vendor-advisory
cisa.gov /uscert/ics/advisories/icsa-22-053-03
mitigation, third-party-advisory, us-government-resource

Sources

CVE List CVE-2022-23922
NVD CVE-2022-23922

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary