No exploitation reported

CVE-2021-22661

No exploitation reported by the sources we read.

Published2021-02-26
WeaknessCWE-264

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

Changing the password on the module webpage does not require the user to type in the current password first. Thus, the password could be changed by a user or external process without knowledge of the current password on the ICX35-HWC-A and ICX35-HWC-E (Versions 1.9.62 and prior).

Timeline

dates in UTC

2021-02-2615:15CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 18:48 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2021-22661?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2021-22661?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD

Prosoft-technology icx35-hwc-a firmwareversion to verify

Branch	Affected	Fixed in	Source
1.9	≤ 1.9.62	no fix published	NVD

Prosoft-technology icx35-hwc-e firmwareversion to verify

Branch	Affected	Fixed in	Source
1.9	≤ 1.9.62	no fix published	NVD

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Vendor advisories

ICSA-21-056-04 CISA2 known affected
ProSoft Technology ICX35
ICX35-HWC-E: Versions 1.9.62 and prior · ICX35-HWC-A: Versions 1.9.62 and prior

Full record on NVD

Fix

Mitigation from the vendor CISA ICSA-21-056-04 · 2 productsProSoft Technology recommends users update the product's firmware to Version 1.10.30
Mitigation from the vendor CISA ICSA-21-056-04 · 2 productsFor additional information, see ProSoft's security bulletin pertaining to this issue.

Detection

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: none listed

Sources

NVDCVSS 3.17.5read 2026-10-23
NVDCVSS 2.05read 2026-10-23
CNAweakness (CWE)CWE-264read 2026-10-23
FIRST EPSSEPSS score1.8 %2026-10-22

Technical details

CVSS v3 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Published: 2021-02-26
Last Modified: 2026-06-17
NVD status: Modified

Frequently asked questions

What is CVE-2021-22661?

Is CVE-2021-22661 actively exploited?

Active exploitation of CVE-2021-22661 has not been confirmed. Its EPSS score was 1.8% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2021-22661?

CVE-2021-22661 has a CVSS v3 base score of 7.5 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.

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