How severe is CVE-2023-25091?

CVE-2023-25091 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-2023-25091 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (70th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-25091?

CVE-2023-25091 affects Milesight Ur32l Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-25091?

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-2023-25091 published?

CVE-2023-25091 was published on 2023-07-06 and last updated on 2026-06-17.

CVE-2023-25091

CVE-2023-25091 is a high-severity vulnerability in Milesight Ur32l 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-787.

Key facts

Severity: High (CVSS 3.x base score 7.2)
EPSS exploit prediction: 1% (70th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-787
Affected product: Milesight Ur32l Firmware
Published: 2023-07-06
Last modified: 2026-06-17

Description

Multiple buffer overflow vulnerabilities exist in the vtysh_ubus binary of Milesight UR32L v32.3.0.5 due to the use of an unsafe sprintf pattern. A specially crafted HTTP request can lead to arbitrary code execution. An attacker with high privileges can send HTTP requests to trigger these vulnerabilities.This buffer overflow occurs in the handle_interface_acl function with the interface variable when out_acl is -1.

Frequently asked questions

What is CVE-2023-25091?: Multiple buffer overflow vulnerabilities exist in the vtysh_ubus binary of Milesight UR32L v32.3.0.5 due to the use of an unsafe sprintf pattern. A specially crafted HTTP request can lead to arbitrary code execution. An attacker with high privileges can send HTTP requests to trigger these vulnerabilities.This buffer overflow occurs in the handle_interface_acl function with the interface variable when out_acl is -1.
How severe is CVE-2023-25091?: CVE-2023-25091 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-2023-25091 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (70th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-25091?: CVE-2023-25091 affects Milesight Ur32l Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-25091?: 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-2023-25091 published?: CVE-2023-25091 was published on 2023-07-06 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:milesight:ur32l_firmware:32.3.0.5:*:*:*:*:*:*:*

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