How severe is CVE-2023-25103?

CVE-2023-25103 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-2023-25103 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-2023-25103?

CVE-2023-25103 affects Milesight Ur32l Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-25103?

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-2023-25103 published?

CVE-2023-25103 was published on 2023-07-06 and last updated on 2026-06-17.

CVE-2023-25103

CVE-2023-25103 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 set_dmvpn function with the gre_ip and the gre_mask variables.

Frequently asked questions

What is CVE-2023-25103?: 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 set_dmvpn function with the gre_ip and the gre_mask variables.
How severe is CVE-2023-25103?: CVE-2023-25103 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-2023-25103 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-2023-25103?: CVE-2023-25103 affects Milesight Ur32l Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-25103?: 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-2023-25103 published?: CVE-2023-25103 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:*:*:*:*:*:*:*

More vulnerabilities in Milesight Ur32l Firmware

CVE-2023-23902 — Critical (CVSS 9.8): A buffer overflow vulnerability exists in the uhttpd login functionality of Milesight UR32L v32.3.0.5. A specially…
CVE-2023-47166 — High (CVSS 8.8): A firmware update vulnerability exists in the luci2-io file-import functionality of Milesight UR32L v32.3.0.7-r2. A…
CVE-2023-24583 — High (CVSS 8.8): Two OS command injection vulnerabilities exist in the urvpn_client cmd_name_action functionality of Milesight UR32L…
CVE-2023-24582 — High (CVSS 8.8): Two OS command injection vulnerabilities exist in the urvpn_client cmd_name_action functionality of Milesight UR32L…
CVE-2023-24520 — High (CVSS 8.8): Two OS command injection vulnerability exist in the vtysh_ubus toolsh_excute.constprop.1 functionality of Milesight…
CVE-2023-24519 — High (CVSS 8.8): Two OS command injection vulnerability exist in the vtysh_ubus toolsh_excute.constprop.1 functionality of Milesight…

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