How severe is CVE-2021-42230?

CVE-2021-42230 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2021-42230 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 6% (92nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-42230?

CVE-2021-42230 affects Seowonintech 130-slc Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-42230?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2021-42230 published?

CVE-2021-42230 was published on 2022-04-15 and last updated on 2026-06-17.

CVE-2021-42230

CVE-2021-42230 is a critical-severity vulnerability in Seowonintech 130-slc Firmware with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 6% (92nd percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Seowonintech 130-slc Firmware
Published: 2022-04-15
Last modified: 2026-06-17

Description

Seowon 130-SLC router all versions as of 2021-09-15 is vulnerable to Remote Code Execution via the queriesCnt parameter.

Frequently asked questions

What is CVE-2021-42230?: Seowon 130-SLC router all versions as of 2021-09-15 is vulnerable to Remote Code Execution via the queriesCnt parameter.
How severe is CVE-2021-42230?: CVE-2021-42230 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2021-42230 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 6% (92nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-42230?: CVE-2021-42230 affects Seowonintech 130-slc Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-42230?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2021-42230 published?: CVE-2021-42230 was published on 2022-04-15 and last updated on 2026-06-17.

References

https://www.exploit-db.com/exploits/50295

Affected products (1)

cpe:2.3:o:seowonintech:130-slc_firmware:*:*:*:*:*:*:*:*