How severe is CVE-2025-45800?

CVE-2025-45800 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-2025-45800 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (60th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-45800?

CVE-2025-45800 affects Totolink A950rg Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-45800?

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.

Does CVE-2025-45800 have an EU (EUVD) identifier?

Yes. CVE-2025-45800 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-13127.

When was CVE-2025-45800 published?

CVE-2025-45800 was published on 2025-05-02 and last updated on 2026-06-17.

CVE-2025-45800

CVE-2025-45800 is a critical-severity vulnerability in Totolink A950rg 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: 1% (60th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-13127
Weakness: CWE-77
Affected product: Totolink A950rg Firmware
Published: 2025-05-02
Last modified: 2026-06-17

Description

TOTOLINK A950RG V4.1.2cu.5204_B20210112 contains a command execution vulnerability in the setDeviceName interface of the /lib/cste_modules/global.so library, specifically in the processing of the deviceMac parameter.

Frequently asked questions

What is CVE-2025-45800?: TOTOLINK A950RG V4.1.2cu.5204_B20210112 contains a command execution vulnerability in the setDeviceName interface of the /lib/cste_modules/global.so library, specifically in the processing of the deviceMac parameter.
How severe is CVE-2025-45800?: CVE-2025-45800 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-2025-45800 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (60th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-45800?: CVE-2025-45800 affects Totolink A950rg Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-45800?: 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.
Does CVE-2025-45800 have an EU (EUVD) identifier?: Yes. CVE-2025-45800 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-13127.
When was CVE-2025-45800 published?: CVE-2025-45800 was published on 2025-05-02 and last updated on 2026-06-17.

References

https://github.com/SunnyYANGyaya/cuicuishark-sheep-fishIOT/blob/main/ToTolink/A950RG/5024-setDeviceName-deviceMac-command.md

Affected products (1)

cpe:2.3:o:totolink:a950rg_firmware:4.1.2cu.5204_b20210112:*:*:*:*:*:*:*

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