How severe is CVE-2023-43453?

CVE-2023-43453 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-2023-43453 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (72nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-43453?

CVE-2023-43453 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-2023-43453?

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.

When was CVE-2023-43453 published?

CVE-2023-43453 was published on 2023-12-01 and last updated on 2026-06-17.

CVE-2023-43453

CVE-2023-43453 is a critical-severity vulnerability in Totolink X6000r 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: 2% (72nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-77
Affected product: Totolink X6000r Firmware
Published: 2023-12-01
Last modified: 2026-06-17

Description

An issue in TOTOLINK X6000R V9.4.0cu.652_B20230116 and V9.4.0cu.852_B20230719 allows a remote attacker to execute arbitrary code via the IP parameter of the setDiagnosisCfg component.

Frequently asked questions

What is CVE-2023-43453?: An issue in TOTOLINK X6000R V9.4.0cu.652_B20230116 and V9.4.0cu.852_B20230719 allows a remote attacker to execute arbitrary code via the IP parameter of the setDiagnosisCfg component.
How severe is CVE-2023-43453?: CVE-2023-43453 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-2023-43453 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (72nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-43453?: CVE-2023-43453 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-2023-43453?: 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.
When was CVE-2023-43453 published?: CVE-2023-43453 was published on 2023-12-01 and last updated on 2026-06-17.

References

https://github.com/tharsis1024/vuln/blob/main/TOTOLINK/X6000R/2.md

Affected products (2)

cpe:2.3:o:totolink:x6000r_firmware:9.4.0cu.652_b20230116:*:*:*:*:*:*:*
cpe:2.3:o:totolink:x6000r_firmware:9.4.0cu.852_b20230719:*:*:*:*:*:*:*

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