How severe is CVE-2025-45844?

CVE-2025-45844 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2025-45844 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (44th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-45844?

CVE-2025-45844 affects Totolink Nr1800x Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-45844?

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-2025-45844 have an EU (EUVD) identifier?

Yes. CVE-2025-45844 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-14017.

When was CVE-2025-45844 published?

CVE-2025-45844 was published on 2025-05-08 and last updated on 2026-06-17.

CVE-2025-45844

CVE-2025-45844 is a high-severity vulnerability in Totolink Nr1800x Firmware with a CVSS 3.x base score of 8.8. 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-787.

Key facts

Severity: High (CVSS 3.x base score 8.8)
EPSS exploit prediction: 1% (44th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-14017
Weakness: CWE-787
Affected product: Totolink Nr1800x Firmware
Published: 2025-05-08
Last modified: 2026-06-17

Description

TOTOLINK NR1800X V9.1.0u.6681_B20230703 was discovered to contain an authenticated stack overflow via the ssid parameter in the setWiFiBasicCfg function.

Frequently asked questions

What is CVE-2025-45844?: TOTOLINK NR1800X V9.1.0u.6681_B20230703 was discovered to contain an authenticated stack overflow via the ssid parameter in the setWiFiBasicCfg function.
How severe is CVE-2025-45844?: CVE-2025-45844 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2025-45844 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (44th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-45844?: CVE-2025-45844 affects Totolink Nr1800x Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-45844?: 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-2025-45844 have an EU (EUVD) identifier?: Yes. CVE-2025-45844 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-14017.
When was CVE-2025-45844 published?: CVE-2025-45844 was published on 2025-05-08 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:totolink:nr1800x_firmware:9.1.0u.6681_b20230703:*:*:*:*:*:*:*

More vulnerabilities in Totolink Nr1800x Firmware

CVE-2025-45841 — Critical (CVSS 9.8): TOTOLINK NR1800X V9.1.0u.6681_B20230703 was discovered to contain an authenticated stack overflow via the text…
CVE-2023-7220 — Critical (CVSS 9.8): A vulnerability was found in Totolink NR1800X 9.1.0u.6279_B20210910 and classified as critical. Affected by this issue…
CVE-2023-36340 — Critical (CVSS 9.8): TOTOLINK NR1800X V9.1.0u.6279_B20210910 was discovered to contain a stack overflow via the http_host parameter in the…
CVE-2022-41525 — Critical (CVSS 9.8): TOTOLINK NR1800X V9.1.0u.6279_B20210910 was discovered to contain a command injection vulnerability via the OpModeCfg…
CVE-2022-41522 — Critical (CVSS 9.8): TOTOLINK NR1800X V9.1.0u.6279_B20210910 was discovered to contain an unauthenticated stack overflow via the "main"…
CVE-2022-41518 — Critical (CVSS 9.8): TOTOLINK NR1800X V9.1.0u.6279_B20210910 was discovered to contain a command injection vulnerability via the…

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