How severe is CVE-2023-23064?

CVE-2023-23064 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2023-23064 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (49th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-23064?

CVE-2023-23064 affects Totolink A720r Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-23064?

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-2023-23064 published?

CVE-2023-23064 was published on 2023-02-17 and last updated on 2026-06-17.

CVE-2023-23064

CVE-2023-23064 is a critical-severity vulnerability in Totolink A720r Firmware with a CVSS 3.x base score of 9.8. 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: Critical (CVSS 3.x base score 9.8)
EPSS exploit prediction: 1% (49th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-863
Affected product: Totolink A720r Firmware
Published: 2023-02-17
Last modified: 2026-06-17

Description

TOTOLINK A720R V4.1.5cu.532_ B20210610 is vulnerable to Incorrect Access Control.

Frequently asked questions

What is CVE-2023-23064?: TOTOLINK A720R V4.1.5cu.532_ B20210610 is vulnerable to Incorrect Access Control.
How severe is CVE-2023-23064?: CVE-2023-23064 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2023-23064 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (49th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-23064?: CVE-2023-23064 affects Totolink A720r Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-23064?: 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-2023-23064 published?: CVE-2023-23064 was published on 2023-02-17 and last updated on 2026-06-17.

References

https://github.com/shellpei/TOTOLINK-Unauthorized/blob/main/CVE-2023-23064

Affected products (1)

cpe:2.3:o:totolink:a720r_firmware:4.1.5cu.532_b20210610:*:*:*:*:*:*:*

More vulnerabilities in Totolink A720r Firmware

CVE-2021-45742 — Critical (CVSS 9.8): TOTOLINK A720R v4.1.5cu.470_B20200911 was discovered to contain a command injection vulnerability in the "Main"…
CVE-2021-45740 — Critical (CVSS 9.8): TOTOLINK A720R v4.1.5cu.470_B20200911 was discovered to contain a stack overflow in the setWiFiWpsStart function. This…
CVE-2021-44247 — Critical (CVSS 9.8): Totolink devices A3100R v4.1.2cu.5050_B20200504, A830R v5.9c.4729_B20191112, and A720R v4.1.5cu.470_B20200911 were…
CVE-2021-35327 — Critical (CVSS 9.8): A vulnerability in TOTOLINK A720R A720R_Firmware v4.1.5cu.470_B20200911 allows attackers to start the Telnet service,…
CVE-2021-35324 — Critical (CVSS 9.8): A vulnerability in the Form_Login function of TOTOLINK A720R A720R_Firmware V4.1.5cu.470_B20200911 allows attackers to…
CVE-2021-27710 — Critical (CVSS 9.8): Command Injection in TOTOLINK X5000R router with firmware v9.1.0u.6118_B20201102, and TOTOLINK A720R router with…

All CVEs affecting Totolink A720r Firmware →

Other CWE-863 (Incorrect Authorization) vulnerabilities

CVE-2026-48286 — Critical (CVSS 10.0): Adobe Campaign Classic (ACC) versions 7.4.3 build 9396 and earlier are affected by an Incorrect Authorization…
CVE-2026-48303 — Critical (CVSS 10.0): Adobe Campaign Classic (ACC) versions 7.4.3 build 9394 and earlier are affected by an Incorrect Authorization…
CVE-2026-44330 — Critical (CVSS 10.0): free5GC is an open-source implementation of the 5G core network. Prior to 4.2.2, free5GC's NEF mounts the…
CVE-2026-46595 — Critical (CVSS 10.0): Previously, CVE-2024-45337 fixed an authorization bypass for misused ssh server configurations; if any other type of…
CVE-2026-33105 — Critical (CVSS 10.0): Improper authorization in Microsoft Azure Kubernetes Service allows an unauthorized attacker to elevate privileges over…
CVE-2026-32213 — Critical (CVSS 10.0): Improper authorization in Azure AI Foundry allows an unauthorized attacker to elevate privileges over a network.

Browse all CWE-863 (Incorrect Authorization) vulnerabilities →