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Known exploited vulnerability

CVE-2023-1389

highCVSS 3.1 8.8In CISA KEVEPSS 100%Published · n/a

The short answer

CVE-2023-1389 affects n/a TP-Link Archer AX21 (AX1800) and is rated high (CVSS 8.8). CISA added it to the Known Exploited Vulnerabilities catalog on 2023-05-01: attackers are using it, so patch it first.

What it is

TP-Link Archer AX21 (AX1800) firmware versions before 1.1.4 Build 20230219 contained a command injection vulnerability in the country form of the /cgi-bin/luci;stok=/locale endpoint on the web management interface. Specifically, the country parameter of the write operation was not sanitized before being used in a call to popen(), allowing an unauthenticated attacker to inject commands, which would be run as root, with a simple POST request.

Weakness: CWE-77.

Severity

8.8 high

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploited (CISA KEV)

Yes, since May 1, 2023

Federal due date May 22, 2023

EPSS, next 30 days

100%

Higher than 100% of scored CVEs

How it can be exploited

Attack vector
Adjacent network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
High
Availability impact
High

What CISA says to do

Apply updates per vendor instructions.

Affected products

TP-Link Archer AX21 (AX1800). NVD's record lists the exact affected versions.

References

Questions

Is CVE-2023-1389 being exploited?

Yes. CISA added CVE-2023-1389 to its Known Exploited Vulnerabilities catalog on 2023-05-01, with a federal remediation due date of 2023-05-22.

How do I fix CVE-2023-1389?

CISA's required action: Apply updates per vendor instructions.

From NVD, CISA KEV, FIRST EPSS and OSV.dev, checked . Status on NVD: Analyzed. The description is NVD's text, quoted as published.

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