How severe is CVE-2026-4611?

CVE-2026-4611 has a CVSS 3.x base score of 7.2, rated high severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-4611 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (86th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-4611?

CVE-2026-4611 primarily affects Totolink X6000r Firmware. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2026-4611?

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-2026-4611 have an EU (EUVD) identifier?

Yes. CVE-2026-4611 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-14603.

When was CVE-2026-4611 published?

CVE-2026-4611 was published on 2026-03-23 and last updated on 2026-06-17.

CVE-2026-4611

CVE-2026-4611 is a high-severity vulnerability in Totolink X6000r Firmware with a CVSS 3.x base score of 7.2. 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-78.

Key facts

Severity: High (CVSS 3.x base score 7.2)
CVSS v2: 8.3
CVSS v4: 8.6
EPSS exploit prediction: 3% (86th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-14603
Weakness: CWE-78
Affected product: Totolink X6000r Firmware
Published: 2026-03-23
Last modified: 2026-06-17

Description

A flaw has been found in TOTOLINK X6000R 9.4.0cu.1360_B20241207/9.4.0cu.1498_B20250826. Affected by this issue is the function setLanCfg of the file /usr/sbin/shttpd. Executing a manipulation of the argument Hostname can lead to os command injection. The attack may be launched remotely.

Frequently asked questions

What is CVE-2026-4611?: A flaw has been found in TOTOLINK X6000R 9.4.0cu.1360_B20241207/9.4.0cu.1498_B20250826. Affected by this issue is the function setLanCfg of the file /usr/sbin/shttpd. Executing a manipulation of the argument Hostname can lead to os command injection. The attack may be launched remotely.
How severe is CVE-2026-4611?: CVE-2026-4611 has a CVSS 3.x base score of 7.2, rated high severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-4611 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (86th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-4611?: CVE-2026-4611 primarily affects Totolink X6000r Firmware. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2026-4611?: 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-2026-4611 have an EU (EUVD) identifier?: Yes. CVE-2026-4611 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-14603.
When was CVE-2026-4611 published?: CVE-2026-4611 was published on 2026-03-23 and last updated on 2026-06-17.

References

Affected products (2)

cpe:2.3:o:totolink:x6000r_firmware:9.4.0cu.1360_b20241207:*:*:*:*:*:*:*
cpe:2.3:o:totolink:x6000r_firmware:9.4.0cu.1498_b20250826:*:*:*:*:*:*:*

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