How severe is CVE-2020-27600?

CVE-2020-27600 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-2020-27600 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 14% (96th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-27600?

CVE-2020-27600 affects Dlink Dir-846 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-27600?

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-2020-27600 published?

CVE-2020-27600 was published on 2021-04-02 and last updated on 2026-06-17.

CVE-2020-27600

CVE-2020-27600 is a critical-severity vulnerability in Dlink Dir-846 Firmware with a CVSS 3.x base score of 9.8. Its EPSS exploit-prediction score of 14% places it in the 96th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-78.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 10.0
EPSS exploit prediction: 14% (96th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-78
Affected product: Dlink Dir-846 Firmware
Published: 2021-04-02
Last modified: 2026-06-17

Description

HNAP1/control/SetMasterWLanSettings.php in D-Link D-Link Router DIR-846 DIR-846 A1_100.26 allows remote attackers to execute arbitrary commands via shell metacharacters in the ssid0 or ssid1 parameter.

Frequently asked questions

What is CVE-2020-27600?: HNAP1/control/SetMasterWLanSettings.php in D-Link D-Link Router DIR-846 DIR-846 A1_100.26 allows remote attackers to execute arbitrary commands via shell metacharacters in the ssid0 or ssid1 parameter.
How severe is CVE-2020-27600?: CVE-2020-27600 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-2020-27600 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 14% (96th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-27600?: CVE-2020-27600 affects Dlink Dir-846 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-27600?: 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-2020-27600 published?: CVE-2020-27600 was published on 2021-04-02 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:dlink:dir-846_firmware:a1_100.26:*:*:*:*:*:*:*

More vulnerabilities in Dlink Dir-846 Firmware

CVE-2022-46642 — Critical (CVSS 9.9): D-Link DIR-846 A1_FW100A43 was discovered to contain a command injection vulnerability via the auto_upgrade_hour…
CVE-2022-46641 — Critical (CVSS 9.9): D-Link DIR-846 A1_FW100A43 was discovered to contain a command injection vulnerability via the lan(0)_dhcps_staticlist…
CVE-2023-33735 — Critical (CVSS 9.8): D-Link DIR-846 v1.00A52 was discovered to contain a remote command execution (RCE) vulnerability via the…
CVE-2020-21016 — Critical (CVSS 9.8): D-Link DIR-846 devices with firmware 100A35 allow remote attackers to execute arbitrary code as root via…
CVE-2021-46319 — Critical (CVSS 9.8): Remote Code Execution (RCE) vulnerability exists in D-Link Router DIR-846 DIR846A1_FW100A43.bin and…
CVE-2021-46315 — Critical (CVSS 9.8): Remote Command Execution (RCE) vulnerability exists in HNAP1/control/SetWizardConfig.php in D-Link Router DIR-846…

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