How severe is CVE-2023-43261?

CVE-2023-43261 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2023-43261 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 60% (99th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-43261?

CVE-2023-43261 primarily affects Milesight Ur5x Firmware. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2023-43261?

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.

When was CVE-2023-43261 published?

CVE-2023-43261 was published on 2023-10-04 and last updated on 2026-07-05.

CVE-2023-43261

CVE-2023-43261 is a high-severity vulnerability in Milesight Ur5x Firmware with a CVSS 3.x base score of 7.5. Its EPSS exploit-prediction score of 60% places it in the 99th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-532.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 60% (99th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-532
Affected product: Milesight Ur5x Firmware
Published: 2023-10-04
Last modified: 2026-07-05

Description

An information disclosure in Milesight UR5X, UR32L, UR32, UR35, UR41 before v35.3.0.7 allows attackers to access sensitive router components.

Frequently asked questions

What is CVE-2023-43261?: An information disclosure in Milesight UR5X, UR32L, UR32, UR35, UR41 before v35.3.0.7 allows attackers to access sensitive router components.
How severe is CVE-2023-43261?: CVE-2023-43261 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2023-43261 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 60% (99th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-43261?: CVE-2023-43261 primarily affects Milesight Ur5x Firmware. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2023-43261?: 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.
When was CVE-2023-43261 published?: CVE-2023-43261 was published on 2023-10-04 and last updated on 2026-07-05.

References

Affected products (5)

cpe:2.3:o:milesight:ur5x_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:milesight:ur32l_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:milesight:ur32_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:milesight:ur35_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:milesight:ur41_firmware:*:*:*:*:*:*:*:*

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