How severe is CVE-2023-41028?

CVE-2023-41028 has a CVSS 3.x base score of 9.0, rated critical severity. It is exploitable over an adjacent network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2023-41028 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (51st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-41028?

CVE-2023-41028 affects Juplink Rx4-1500 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-41028?

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-2023-41028 published?

CVE-2023-41028 was published on 2023-08-23 and last updated on 2026-06-17.

CVE-2023-41028

CVE-2023-41028 is a critical-severity vulnerability in Juplink Rx4-1500 Firmware with a CVSS 3.x base score of 9.0. 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: Critical (CVSS 3.x base score 9.0)
EPSS exploit prediction: 1% (51st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-787
Affected product: Juplink Rx4-1500 Firmware
Published: 2023-08-23
Last modified: 2026-06-17

Description

A stack-based buffer overflow exists in Juplink RX4-1500, a WiFi router, in versions 1.0.2 through 1.0.5. An authenticated attacker can exploit this vulnerability to achieve code execution as root.

Frequently asked questions

What is CVE-2023-41028?: A stack-based buffer overflow exists in Juplink RX4-1500, a WiFi router, in versions 1.0.2 through 1.0.5. An authenticated attacker can exploit this vulnerability to achieve code execution as root.
How severe is CVE-2023-41028?: CVE-2023-41028 has a CVSS 3.x base score of 9.0, rated critical severity. It is exploitable over an adjacent network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2023-41028 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (51st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-41028?: CVE-2023-41028 affects Juplink Rx4-1500 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-41028?: 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-2023-41028 published?: CVE-2023-41028 was published on 2023-08-23 and last updated on 2026-06-17.

References

https://blog.exodusintel.com/2023/08/23/juplink-rx4-1500-stack-based-buffer-overflow-vulnerability/

Affected products (1)

cpe:2.3:o:juplink:rx4-1500_firmware:*:*:*:*:*:*:*:*

More vulnerabilities in Juplink Rx4-1500 Firmware

CVE-2023-41031 — High (CVSS 8.0): Command injection in homemng.htm in Juplink RX4-1500 versions V1.0.2, V1.0.3, V1.0.4, and V1.0.5 allows remote…
CVE-2023-41029 — High (CVSS 8.0): Command injection vulnerability in the homemng.htm endpoint in Juplink RX4-1500 Wifi router firmware…
CVE-2023-41027 — High (CVSS 8.0): Credential disclosure in the '/webs/userpasswd.htm' endpoint in Juplink RX4-1500 Wifi router firmware versions V1.0.4…
CVE-2020-8797 — Medium (CVSS 6.7): Juplink RX4-1500 v1.0.3 allows remote attackers to gain root access to the Linux subsystem via an unsanitized exec call…
CVE-2023-41030 — Medium (CVSS 6.3): Hard-coded credentials in Juplink RX4-1500 versions V1.0.2 through V1.0.5 allow unauthenticated attackers to log in…
CVE-2020-8798 — Medium (CVSS 5.5): httpd in Juplink RX4-1500 v1.0.3-v1.0.5 allows remote attackers to change or access router settings by connecting to…

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