How severe is CVE-2025-1339?

CVE-2025-1339 has a CVSS 3.x base score of 6.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.

Is CVE-2025-1339 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (84th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-1339?

CVE-2025-1339 affects Totolink X18 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-1339?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2025-1339 have an EU (EUVD) identifier?

Yes. CVE-2025-1339 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-2110.

When was CVE-2025-1339 published?

CVE-2025-1339 was published on 2025-02-16 and last updated on 2026-06-17.

CVE-2025-1339

CVE-2025-1339 is a medium-severity vulnerability in Totolink X18 Firmware with a CVSS 3.x base score of 6.3. 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: Medium (CVSS 3.x base score 6.3)
CVSS v2: 6.5
CVSS v4: 5.3
EPSS exploit prediction: 3% (84th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-2110
Weakness: CWE-77
Affected product: Totolink X18 Firmware
Published: 2025-02-16
Last modified: 2026-06-17

Description

A vulnerability was found in TOTOLINK X18 9.1.0cu.2024_B20220329. It has been rated as critical. This issue affects the function setL2tpdConfig of the file /cgi-bin/cstecgi.cgi. The manipulation of the argument enable leads to os command injection. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

Frequently asked questions

What is CVE-2025-1339?: A vulnerability was found in TOTOLINK X18 9.1.0cu.2024_B20220329. It has been rated as critical. This issue affects the function setL2tpdConfig of the file /cgi-bin/cstecgi.cgi. The manipulation of the argument enable leads to os command injection. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
How severe is CVE-2025-1339?: CVE-2025-1339 has a CVSS 3.x base score of 6.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.
Is CVE-2025-1339 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (84th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-1339?: CVE-2025-1339 affects Totolink X18 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-1339?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-1339 have an EU (EUVD) identifier?: Yes. CVE-2025-1339 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-2110.
When was CVE-2025-1339 published?: CVE-2025-1339 was published on 2025-02-16 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:totolink:x18_firmware:9.1.0cu.2024_b20220329:*:*:*:*:*:*:*

More vulnerabilities in Totolink X18 Firmware

CVE-2025-61045 — Critical (CVSS 9.8): TOTOLINK X18 V9.1.0cu.2053_B20230309 was discovered to contain a command injection vulnerability via the mac parameter…
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CVE-2025-29209 — Critical (CVSS 9.8): TOTOLINK X18 v9.1.0cu.2024_B20220329 has an unauthorized arbitrary command execution in the enable parameter' of the…
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CVE-2023-29803 — Critical (CVSS 9.8): TOTOLINK X18 V9.1.0cu.2024_B20220329 was discovered to contain a command injection vulnerability via the pid parameter…
CVE-2023-29802 — Critical (CVSS 9.8): TOTOLINK X18 V9.1.0cu.2024_B20220329 was discovered to contain a command injection vulnerability via the ip parameter…

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