How severe is CVE-2025-45835?

CVE-2025-45835 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-2025-45835 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (32nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-45835?

CVE-2025-45835 affects Netis-systems Wf2880 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-45835?

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.

Does CVE-2025-45835 have an EU (EUVD) identifier?

Yes. CVE-2025-45835 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-14311.

When was CVE-2025-45835 published?

CVE-2025-45835 was published on 2025-05-12 and last updated on 2026-06-17.

CVE-2025-45835

CVE-2025-45835 is a high-severity vulnerability in Netis-systems Wf2880 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-476.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 0% (32nd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-14311
Weakness: CWE-476
Affected product: Netis-systems Wf2880 Firmware
Published: 2025-05-12
Last modified: 2026-06-17

Description

A null pointer dereference vulnerability was discovered in Netis WF2880 v2.1.40207. The vulnerability exists in the FUN_004904c8 function of the cgitest.cgi file. Attackers can trigger this vulnerability by controlling the environment variable value CONTENT_LENGTH, causing the program to crash and potentially leading to a denial-of-service (DoS) attack.

Frequently asked questions

What is CVE-2025-45835?: A null pointer dereference vulnerability was discovered in Netis WF2880 v2.1.40207. The vulnerability exists in the FUN_004904c8 function of the cgitest.cgi file. Attackers can trigger this vulnerability by controlling the environment variable value CONTENT_LENGTH, causing the program to crash and potentially leading to a denial-of-service (DoS) attack.
How severe is CVE-2025-45835?: CVE-2025-45835 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-2025-45835 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (32nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-45835?: CVE-2025-45835 affects Netis-systems Wf2880 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-45835?: 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.
Does CVE-2025-45835 have an EU (EUVD) identifier?: Yes. CVE-2025-45835 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-14311.
When was CVE-2025-45835 published?: CVE-2025-45835 was published on 2025-05-12 and last updated on 2026-06-17.

References

https://github.com/Chinesexilinyu/Netis-WF2880-cgitest.cgi-Null-Pointer-Dereference-Vulnerability/tree/main/1

Affected products (1)

cpe:2.3:o:netis-systems:wf2880_firmware:2.1.40207:*:*:*:*:*:*:*

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