How severe is CVE-2023-43891?

CVE-2023-43891 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-2023-43891 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (77th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-43891?

CVE-2023-43891 affects Netis-systems N3m Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-43891?

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-2023-43891 published?

CVE-2023-43891 was published on 2023-10-02 and last updated on 2026-06-17.

CVE-2023-43891

CVE-2023-43891 is a critical-severity vulnerability in Netis-systems N3m 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. The underlying weakness is classified as CWE-77.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
EPSS exploit prediction: 2% (77th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-77
Affected product: Netis-systems N3m Firmware
Published: 2023-10-02
Last modified: 2026-06-17

Description

Netis N3Mv2-V1.0.1.865 was discovered to contain a command injection vulnerability in the Changing Username and Password function. This vulnerability is exploited via a crafted payload.

Frequently asked questions

What is CVE-2023-43891?: Netis N3Mv2-V1.0.1.865 was discovered to contain a command injection vulnerability in the Changing Username and Password function. This vulnerability is exploited via a crafted payload.
How severe is CVE-2023-43891?: CVE-2023-43891 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-2023-43891 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (77th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-43891?: CVE-2023-43891 affects Netis-systems N3m Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-43891?: 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-2023-43891 published?: CVE-2023-43891 was published on 2023-10-02 and last updated on 2026-06-17.

References

https://github.com/adhikara13/CVE/blob/main/netis_N3/command%20injection%20in%20changing%20password%20feature.md

Affected products (1)

cpe:2.3:o:netis-systems:n3m_firmware:1.0.1.865:*:*:*:*:*:*:*

More vulnerabilities in Netis-systems N3m Firmware

CVE-2023-45467 — Critical (CVSS 9.8): Netis N3Mv2-V1.0.1.865 was discovered to contain a command injection vulnerability via the ntpServIP parameter in the…
CVE-2023-45465 — Critical (CVSS 9.8): Netis N3Mv2-V1.0.1.865 was discovered to contain a command injection vulnerability via the ddnsDomainName parameter in…
CVE-2023-43893 — Critical (CVSS 9.8): Netis N3Mv2-V1.0.1.865 was discovered to contain a command injection vulnerability via the wakeup_mac parameter in the…
CVE-2023-43892 — Critical (CVSS 9.8): Netis N3Mv2-V1.0.1.865 was discovered to contain a command injection vulnerability via the Hostname parameter within…
CVE-2023-43890 — High (CVSS 8.8): Netis N3Mv2-V1.0.1.865 was discovered to contain a command injection vulnerability in the diagnostic tools page. This…
CVE-2023-45468 — High (CVSS 7.5): Netis N3Mv2-V1.0.1.865 was discovered to contain a buffer overflow via the pingWdogIp. This vulnerability allows…

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