How severe is CVE-2020-10988?

CVE-2020-10988 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-2020-10988 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (85th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-10988?

CVE-2020-10988 affects Tenda Ac15 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-10988?

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-2020-10988 published?

CVE-2020-10988 was published on 2020-07-13 and last updated on 2026-06-17.

CVE-2020-10988

CVE-2020-10988 is a critical-severity vulnerability in Tenda Ac15 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-798.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 10.0
EPSS exploit prediction: 3% (85th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-798
Affected product: Tenda Ac15 Firmware
Published: 2020-07-13
Last modified: 2026-06-17

Description

A hard-coded telnet credential in the tenda_login binary of Tenda AC15 AC1900 version 15.03.05.19 allows unauthenticated remote attackers to start a telnetd service on the device.

Frequently asked questions

What is CVE-2020-10988?: A hard-coded telnet credential in the tenda_login binary of Tenda AC15 AC1900 version 15.03.05.19 allows unauthenticated remote attackers to start a telnetd service on the device.
How severe is CVE-2020-10988?: CVE-2020-10988 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-2020-10988 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (85th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-10988?: CVE-2020-10988 affects Tenda Ac15 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-10988?: 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-2020-10988 published?: CVE-2020-10988 was published on 2020-07-13 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:tenda:ac15_firmware:15.03.05.19:*:*:*:*:*:*:*

More vulnerabilities in Tenda Ac15 Firmware

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