How severe is CVE-2022-43623?

CVE-2022-43623 has a CVSS 3.x base score of 6.8, rated medium severity. It is exploitable over an adjacent network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2022-43623 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (61st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-43623?

CVE-2022-43623 primarily affects Dlink Dir-1935 Firmware. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2022-43623?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2022-43623 published?

CVE-2022-43623 was published on 2023-03-29 and last updated on 2026-06-17.

CVE-2022-43623

CVE-2022-43623 is a medium-severity vulnerability in Dlink Dir-1935 Firmware with a CVSS 3.x base score of 6.8. 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-77.

Key facts

Severity: Medium (CVSS 3.x base score 6.8)
EPSS exploit prediction: 1% (61st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-77
Affected product: Dlink Dir-1935 Firmware
Published: 2023-03-29
Last modified: 2026-06-17

Description

This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of D-Link DIR-1935 1.03 routers. Although authentication is required to exploit this vulnerability, the existing authentication mechanism can be bypassed. The specific flaw exists within the handling of SetWebFilterSetting requests to the web management portal. When parsing the WebFilterURLs element, the process does not properly validate a user-supplied string before using it to execute a system call. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-16140.

Frequently asked questions

What is CVE-2022-43623?: This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of D-Link DIR-1935 1.03 routers. Although authentication is required to exploit this vulnerability, the existing authentication mechanism can be bypassed. The specific flaw exists within the handling of SetWebFilterSetting requests to the web management portal. When parsing the WebFilterURLs element, the process does not properly validate a user-supplied string before using it to execute a system call. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-16140.
How severe is CVE-2022-43623?: CVE-2022-43623 has a CVSS 3.x base score of 6.8, rated medium severity. It is exploitable over an adjacent network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2022-43623 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (61st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-43623?: CVE-2022-43623 primarily affects Dlink Dir-1935 Firmware. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2022-43623?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2022-43623 published?: CVE-2022-43623 was published on 2023-03-29 and last updated on 2026-06-17.

References

Affected products (3)

cpe:2.3:o:dlink:dir-1935_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:dlink:dir-1935_firmware:1.03:b1:*:*:*:*:*:*
cpe:2.3:o:dlink:dir-1935_firmware:1.03:b2:*:*:*:*:*:*

More vulnerabilities in Dlink Dir-1935 Firmware

CVE-2022-43630 — High (CVSS 8.8): This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of D-Link…
CVE-2022-43622 — High (CVSS 8.8): This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of D-Link…
CVE-2022-43621 — High (CVSS 8.8): This vulnerability allows network-adjacent attackers to bypass authentication on affected installations of D-Link…
CVE-2022-43620 — High (CVSS 8.8): This vulnerability allows network-adjacent attackers to bypass authentication on affected installations of D-Link…
CVE-2022-43633 — Medium (CVSS 6.8): This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of D-Link…
CVE-2022-43632 — Medium (CVSS 6.8): This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of D-Link…

All CVEs affecting Dlink Dir-1935 Firmware →

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