How severe is CVE-2020-26201?

CVE-2020-26201 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-2020-26201 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (82nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-26201?

CVE-2020-26201 affects Askey Ap5100w Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-26201?

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-2020-26201 published?

CVE-2020-26201 was published on 2020-12-10 and last updated on 2026-06-17.

CVE-2020-26201

CVE-2020-26201 is a critical-severity vulnerability in Askey Ap5100w 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-521.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 10.0
EPSS exploit prediction: 2% (82nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-521
Affected product: Askey Ap5100w Firmware
Published: 2020-12-10
Last modified: 2026-06-17

Description

Askey AP5100W_Dual_SIG_1.01.097 and all prior versions use a weak password at the Operating System (rlx-linux) level. This allows an attacker to gain unauthorized access as an admin or root user to the device Operating System via Telnet or SSH.

Frequently asked questions

What is CVE-2020-26201?: Askey AP5100W_Dual_SIG_1.01.097 and all prior versions use a weak password at the Operating System (rlx-linux) level. This allows an attacker to gain unauthorized access as an admin or root user to the device Operating System via Telnet or SSH.
How severe is CVE-2020-26201?: CVE-2020-26201 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-2020-26201 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (82nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-26201?: CVE-2020-26201 affects Askey Ap5100w Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-26201?: 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-2020-26201 published?: CVE-2020-26201 was published on 2020-12-10 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:askey:ap5100w_firmware:*:*:*:*:*:*:*:*

More vulnerabilities in Askey Ap5100w Firmware

CVE-2020-15357 — Critical (CVSS 9.8): Network Analysis functionality in Askey AP5100W_Dual_SIG_1.01.097 and all prior versions allows remote attackers to…
CVE-2020-15023 — Medium (CVSS 5.9): Askey AP5100W devices through AP5100W_Dual_SIG_1.01.097 are affected by WPS PIN offline brute-force cracking. This…

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Other CWE-521 (Weak Password Requirements) vulnerabilities

CVE-2026-25715 — Critical (CVSS 9.8): The web management interface of the device allows the administrator username and password to be set to blank values.…
CVE-2025-53963 — Critical (CVSS 9.8): An issue was discovered on Thermo Fisher Ion Torrent OneTouch 2 INS1005527 devices. They run an SSH server accessible…
CVE-2025-63747 — Critical (CVSS 9.8): QaTraq 6.9.2 ships with administrative account credentials which are enabled in default installations and permit…
CVE-2025-12552 — Critical (CVSS 9.8): Insufficient Password Policy.This issue affects BLU-IC2: through 1.19.5; BLU-IC4: through 1.19.5.
CVE-2025-11200 — Critical (CVSS 9.8): MLflow Weak Password Requirements Authentication Bypass Vulnerability. This vulnerability allows remote attackers to…
CVE-2025-12364 — Critical (CVSS 9.8): Weak Password Policy.This issue affects BLU-IC2: through 1.19.5; BLU-IC4: through 1.19.5.

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