How severe is CVE-2023-41027?

CVE-2023-41027 has a CVSS 3.x base score of 8.0, rated high 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-2023-41027 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-2023-41027?

CVE-2023-41027 primarily affects Juplink Rx4-1500 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-2023-41027?

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-2023-41027 published?

CVE-2023-41027 was published on 2023-09-22 and last updated on 2026-06-17.

CVE-2023-41027

CVE-2023-41027 is a high-severity vulnerability in Juplink Rx4-1500 Firmware with a CVSS 3.x base score of 8.0. 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-209.

Key facts

Severity: High (CVSS 3.x base score 8.0)
CVSS v2: 7.7
EPSS exploit prediction: 1% (51st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-209
Affected product: Juplink Rx4-1500 Firmware
Published: 2023-09-22
Last modified: 2026-06-17

Description

Credential disclosure in the '/webs/userpasswd.htm' endpoint in Juplink RX4-1500 Wifi router firmware versions V1.0.4 and V1.0.5 allows an authenticated attacker to leak the password for the administrative account via requests to the vulnerable endpoint.

Frequently asked questions

What is CVE-2023-41027?: Credential disclosure in the '/webs/userpasswd.htm' endpoint in Juplink RX4-1500 Wifi router firmware versions V1.0.4 and V1.0.5 allows an authenticated attacker to leak the password for the administrative account via requests to the vulnerable endpoint.
How severe is CVE-2023-41027?: CVE-2023-41027 has a CVSS 3.x base score of 8.0, rated high 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-2023-41027 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-2023-41027?: CVE-2023-41027 primarily affects Juplink Rx4-1500 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-2023-41027?: 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-2023-41027 published?: CVE-2023-41027 was published on 2023-09-22 and last updated on 2026-06-17.

References

https://blog.exodusintel.com/2023/09/18/juplink-rx4-1500-credential-disclosure-vulnerability/

Affected products (2)

cpe:2.3:o:juplink:rx4-1500_firmware:1.0.4:*:*:*:*:*:*:*
cpe:2.3:o:juplink:rx4-1500_firmware:1.0.5:*:*:*:*:*:*:*

More vulnerabilities in Juplink Rx4-1500 Firmware

CVE-2023-41028 — Critical (CVSS 9.0): A stack-based buffer overflow exists in Juplink RX4-1500, a WiFi router, in versions 1.0.2 through 1.0.5. An…
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-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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