How severe is CVE-2025-44655?

CVE-2025-44655 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-2025-44655 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (25th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-44655?

CVE-2025-44655 primarily affects Totolink A7100ru 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-2025-44655?

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-2025-44655 have an EU (EUVD) identifier?

Yes. CVE-2025-44655 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-22116.

When was CVE-2025-44655 published?

CVE-2025-44655 was published on 2025-07-21 and last updated on 2026-07-05.

CVE-2025-44655

CVE-2025-44655 is a critical-severity vulnerability in Totolink A7100ru 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-266.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
EPSS exploit prediction: 0% (25th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-22116
Weakness: CWE-266
Affected product: Totolink A7100ru Firmware
Published: 2025-07-21
Last modified: 2026-07-05

Description

In TOTOLink A7100RU V7.4, A950RG V5.9, and T10 V5.9, the chroot_local_user option is enabled in the vsftpd.conf. This could lead to unauthorized access to system files, privilege escalation, or use of the compromised server as a pivot point for internal network attacks.

Frequently asked questions

What is CVE-2025-44655?: In TOTOLink A7100RU V7.4, A950RG V5.9, and T10 V5.9, the chroot_local_user option is enabled in the vsftpd.conf. This could lead to unauthorized access to system files, privilege escalation, or use of the compromised server as a pivot point for internal network attacks.
How severe is CVE-2025-44655?: CVE-2025-44655 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-2025-44655 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (25th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-44655?: CVE-2025-44655 primarily affects Totolink A7100ru 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-2025-44655?: 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-2025-44655 have an EU (EUVD) identifier?: Yes. CVE-2025-44655 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-22116.
When was CVE-2025-44655 published?: CVE-2025-44655 was published on 2025-07-21 and last updated on 2026-07-05.

References

https://gist.github.com/TPCchecker/d7306649f51ca25e22dd6532546a58f3

EU advisories (EUVD)

http://totolink.com

Affected products (3)

cpe:2.3:o:totolink:a7100ru_firmware:7.4:*:*:*:*:*:*:*
cpe:2.3:o:totolink:a950rg_firmware:5.9:*:*:*:*:*:*:*
cpe:2.3:o:totolink:t10_firmware:5.9:*:*:*:*:*:*:*

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