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.
CVE-2023-1389
Score elevated to 9.0 because this CVE is listed on the CISA Known Exploited Vulnerabilities catalog (added 2023-05-01), indicating real-world exploitation has been confirmed by US federal agencies. NVD baseline CVSS 8.8 retained for reference. Confidence: HIGH.
- Actively exploited in the wild (CISA-KEV)
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 8.8
- EG Score
- 9.0(high)
- EG Risk
- 96(Act)EG Risk 96/100SSVC: Act
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity90% × 45%Exploitation100% × 40%Automatability100% × 15%Action: Fix now — active exploitation, automatable, high impact. - EPSS
- 100.0%
- KEV
- ⚠ Exploited
Published
March 15, 2023
Last Modified
November 3, 2025
Advisory Details (3)
Auto-updated Jun 1, 2026Known Exploited Vulnerabilities Catalog | CISA
Known Exploited Vulnerabilities Catalog | CISA. Listed in CISA Known Exploited Vulnerabilities catalog.
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-1389Unauthenticated Command Injection in TP-Link Archer AX21 (AX1800) - Research Advisory | Tenable®
https://www.tenable.com/security/research/tra-2023-11Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 34× in last 7d / 196× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
Showing the most recent 100 of 392 total refreshes for this CVE.
- 2026-07-23 02:17 UTCEG score recompute
- 2026-07-22 22:13 UTCEG score recompute
- 2026-07-22 22:13 UTCGHSA enrichment
- 2026-07-22 19:40 UTCCISA KEV update
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- 2026-07-14 18:05 UTCCISA KEV update
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- 2026-07-13 17:07 UTCCISA KEV update
- 2026-07-13 13:56 UTCGHSA enrichment
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- 2026-07-10 17:52 UTCCISA KEV update
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Publicly available exploits
(3 references)Working exploit code is in the public domain (1 GitHub PoC) (1 Exploit-DB entry). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.
- Exploit-DBEDB-51677First seen Aug 10, 2023
TP-Link Archer AX21 - Unauthenticated Command Injection
Open source ↗ - Open source ↗GitHub PoCVoyag3r-Security/CVE-2023-1389First seen Jul 28, 2023
- Nucleihttp/cves/2023/CVE-2023-1389.yamlFirst seen Jan 1, 2023
TP-Link Archer AX21 (AX1800) - Unauthenticated Command Injection
Open source ↗
Related CVEs(same CWE)
Same CWE
10 shownCWE-77
- CVE-2016-15057EG 9.9CRITICAL
- CVE-2014-5470EG 9.8EPSS 95%CRITICAL
- CVE-2013-2513EG 9.8CRITICAL
- CVE-2015-20108EG 9.8CRITICAL
- CVE-2015-10096NVD 5.0EG 9.8MEDIUM
- CVE-2017-20156NVD 5.5EG 9.8MEDIUM
- CVE-2016-20017EG 9.8 KEVEPSS 99%CRITICAL
- CVE-2016-4991EG 9.8CRITICAL
- CVE-2015-20107NVD 7.6EG 9.8EPSS 94%HIGH
- CVE-2014-4982EG 9.8EPSS 91%CRITICAL
Frequently asked(6)
What is CVE-2023-1389?
When was CVE-2023-1389 disclosed?
Is CVE-2023-1389 actively exploited?
What is the CVSS score of CVE-2023-1389?
Which products are affected by CVE-2023-1389?
How do I remediate CVE-2023-1389?
Dependency Blast Radius
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