How severe is CVE-2023-48859?

CVE-2023-48859 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2023-48859 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (64th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-48859?

CVE-2023-48859 affects Totolink A3002ru Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-48859?

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-2023-48859 published?

CVE-2023-48859 was published on 2023-12-06 and last updated on 2026-06-17.

CVE-2023-48859

CVE-2023-48859 is a high-severity vulnerability in Totolink A3002ru Firmware with a CVSS 3.x base score of 8.8. 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-863.

Key facts

Severity: High (CVSS 3.x base score 8.8)
EPSS exploit prediction: 1% (64th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-863
Affected product: Totolink A3002ru Firmware
Published: 2023-12-06
Last modified: 2026-06-17

Description

TOTOLINK A3002RU version 2.0.0-B20190902.1958 has a post-authentication RCE due to incorrect access control, allows attackers to bypass front-end security restrictions and execute arbitrary code.

Frequently asked questions

What is CVE-2023-48859?: TOTOLINK A3002RU version 2.0.0-B20190902.1958 has a post-authentication RCE due to incorrect access control, allows attackers to bypass front-end security restrictions and execute arbitrary code.
How severe is CVE-2023-48859?: CVE-2023-48859 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2023-48859 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (64th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-48859?: CVE-2023-48859 affects Totolink A3002ru Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-48859?: 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-2023-48859 published?: CVE-2023-48859 was published on 2023-12-06 and last updated on 2026-06-17.

References

https://github.com/xieqiang11/security_research/blob/main/TOTOLINK-A3002RU-RCE.md

Affected products (1)

cpe:2.3:o:totolink:a3002ru_firmware:2.0.0-b20190902.1958:*:*:*:*:*:*:*

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