CVE-2020-12773

CVE-2020-12773 is a critical-severity vulnerability in Realtek Adsl Router Soc Firmware with a CVSS 3.x base score of 9.6. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Description

A security misconfiguration vulnerability exists in the SDK of some Realtek ADSL/PON Modem SoC firmware, which allows attackers using a default password to execute arbitrary commands remotely via the build-in network monitoring tool.

Frequently asked questions

What is CVE-2020-12773?
A security misconfiguration vulnerability exists in the SDK of some Realtek ADSL/PON Modem SoC firmware, which allows attackers using a default password to execute arbitrary commands remotely via the build-in network monitoring tool.
How severe is CVE-2020-12773?
CVE-2020-12773 has a CVSS 3.x base score of 9.6, rated critical 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 none.
Is CVE-2020-12773 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (63rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-12773?
CVE-2020-12773 affects Realtek Adsl Router Soc Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-12773?
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-2020-12773 published?
CVE-2020-12773 was published on 2020-06-08 and last updated on 2026-06-17.

References

Affected products (1)