CVE-2025-11444
CVE-2025-11444 is a high-severity vulnerability in Totolink N600r 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-119.
Key facts
- Severity: High (CVSS 3.x base score 8.8)
- CVSS v2: 9.0
- CVSS v4: 7.4
- EPSS exploit prediction: 1% (57th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2025-31834
- Weakness: CWE-119
- Affected product: Totolink N600r Firmware
- Published:
- Last modified:
Description
A security vulnerability has been detected in TOTOLINK N600R up to 4.3.0cu.7866_B20220506. This impacts the function setWiFiBasicConfig of the file /cgi-bin/cstecgi.cgi of the component HTTP Request Handler. Such manipulation of the argument wepkey leads to buffer overflow. It is possible to launch the attack remotely. The exploit has been disclosed publicly and may be used.
Frequently asked questions
- What is CVE-2025-11444?
- A security vulnerability has been detected in TOTOLINK N600R up to 4.3.0cu.7866_B20220506. This impacts the function setWiFiBasicConfig of the file /cgi-bin/cstecgi.cgi of the component HTTP Request Handler. Such manipulation of the argument wepkey leads to buffer overflow. It is possible to launch the attack remotely. The exploit has been disclosed publicly and may be used.
- How severe is CVE-2025-11444?
- CVE-2025-11444 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-2025-11444 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (57th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2025-11444?
- CVE-2025-11444 affects Totolink N600r Firmware. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2025-11444?
- 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-2025-11444 have an EU (EUVD) identifier?
- Yes. CVE-2025-11444 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-31834.
- When was CVE-2025-11444 published?
- CVE-2025-11444 was published on 2025-10-08 and last updated on 2026-06-17.
References
- https://github.com/z472421519/BinaryAudit/blob/main/PoC/BOF/TOTOLINK/wepkey/wepkey.md
- https://github.com/z472421519/BinaryAudit/blob/main/PoC/BOF/TOTOLINK/wepkey/wepkey.md#reproduce
- https://vuldb.com/?ctiid.327381
- https://vuldb.com/?id.327381
- https://vuldb.com/?submit.666915
- https://www.totolink.net/
Affected products (1)
- cpe:2.3:o:totolink:n600r_firmware:*:*:*:*:*:*:*:*
More vulnerabilities in Totolink N600r Firmware
- CVE-2025-51390 — Critical (CVSS 9.8): TOTOLINK N600R V4.3.0cu.7647_B20210106 was discovered to contain a command injection vulnerability via the pin…
- CVE-2025-46060 — Critical (CVSS 9.8): Buffer Overflow vulnerability in TOTOLINK N600R v4.3.0cu.7866_B2022506 allows a remote attacker to execute arbitrary…
- CVE-2025-22900 — Critical (CVSS 9.8): Totolink N600R v4.3.0cu.7647_B20210106 was discovered to contain a stack overflow via the macCloneMac parameter in the…
- CVE-2023-43141 — Critical (CVSS 9.8): TOTOLINK A3700R V9.1.2u.6134_B20201202 and N600R V5.3c.5137 are vulnerable to Incorrect Access Control.
- CVE-2022-29399 — Critical (CVSS 9.8): TOTOLINK N600R V4.3.0cu.7647_B20210106 was discovered to contain a stack overflow via the url parameter in the function…
- CVE-2022-29398 — Critical (CVSS 9.8): TOTOLINK N600R V4.3.0cu.7647_B20210106 was discovered to contain a stack overflow via the File parameter in the…
All CVEs affecting Totolink N600r Firmware →
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