How severe is CVE-2021-41442?

CVE-2021-41442 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2021-41442 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (91st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-41442?

CVE-2021-41442 affects Dlink Dir-x1860 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-41442?

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

When was CVE-2021-41442 published?

CVE-2021-41442 was published on 2022-02-09 and last updated on 2026-07-05.

CVE-2021-41442

CVE-2021-41442 is a high-severity vulnerability in Dlink Dir-x1860 Firmware with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-444.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 5% (91st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-444
Affected product: Dlink Dir-x1860 Firmware
Published: 2022-02-09
Last modified: 2026-07-05

Description

An HTTP smuggling attack in the web application of D-Link DIR-X1860 before v1.10WWB09_Beta allows a remote unauthenticated attacker to DoS the web application via sending a specific HTTP packet.

Frequently asked questions

What is CVE-2021-41442?: An HTTP smuggling attack in the web application of D-Link DIR-X1860 before v1.10WWB09_Beta allows a remote unauthenticated attacker to DoS the web application via sending a specific HTTP packet.
How severe is CVE-2021-41442?: CVE-2021-41442 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2021-41442 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (91st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-41442?: CVE-2021-41442 affects Dlink Dir-x1860 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-41442?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2021-41442 published?: CVE-2021-41442 was published on 2022-02-09 and last updated on 2026-07-05.

References

Affected products (1)

cpe:2.3:o:dlink:dir-x1860_firmware:*:*:*:*:*:*:*:*

More vulnerabilities in Dlink Dir-x1860 Firmware

CVE-2021-41441 — High (CVSS 7.4): A DoS attack in the web application of D-Link DIR-X1860 before v1.10WWB09_Beta allows a remote unauthenticated attacker…
CVE-2021-41445 — Medium (CVSS 6.1): A reflected cross-site-scripting attack in web application of D-Link DIR-X1860 before v1.10WWB09_Beta allows a remote…
CVE-2024-0717 — Medium (CVSS 5.3): A vulnerability classified as critical was found in D-Link DAP-1360, DIR-300, DIR-615, DIR-615GF, DIR-615S, DIR-615T,…
CVE-2021-46353 — Medium (CVSS 5.3): An information disclosure in web interface in D-Link DIR-X1860 before 1.03 RevA1 allows a remote unauthenticated…

All CVEs affecting Dlink Dir-x1860 Firmware →

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