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TI-2023-20109 Aliases CVE-2023-38823GHSA-9jpx-jr52-334g

Buffer Overflow vulnerability in Tenda Ac19 v.1.0, AC18, AC9 v.1.0, AC6 v.2.0 and v.1.0…

Priority HIGH 82CWE-120Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-120 and the CVSS impact.

Summary

Buffer Overflow vulnerability in Tenda Ac19 v.1.0, AC18, AC9 v.1.0, AC6 v.2.0 and v.1.0 allows a remote attacker to execute arbitrary code via the formSetCfm function in bin/httpd.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.01203 68th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
Yes
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 9

CPEVersionsRoleVendor
cpe:2.3:o:tenda:ac6_firmware:15.03.05.19\(6318\):*:*:*:*:*:*:*15.03.05.19(6318)VulnerableTenda
cpe:2.3:h:tenda:ac6:2.0:*:*:*:*:*:*:*2.0Running onTenda
cpe:2.3:h:tenda:ac6:1.0:*:*:*:*:*:*:*1.0Running onTenda
cpe:2.3:o:tenda:ac9_firmware:15.03.05.19\(6318\):*:*:*:*:*:*:*15.03.05.19(6318)VulnerableTenda
cpe:2.3:h:tenda:ac9:1.0:*:*:*:*:*:*:*1.0Running onTenda
cpe:2.3:o:tenda:ac19_firmware:15.03.05.19\(6318\):*:*:*:*:*:*:*15.03.05.19(6318)VulnerableTenda
cpe:2.3:h:tenda:ac19:1.0:*:*:*:*:*:*:*1.0Running onTenda
cpe:2.3:o:tenda:ac18_firmware:15.03.05.19\(6318\):*:*:*:*:*:*:*15.03.05.19(6318)VulnerableTenda
cpe:2.3:h:tenda:ac18:-:*:*:*:*:*:*:*not specified by NVDRunning onTenda
  • cpe:2.3:o:tenda:ac6_firmware:15.03.05.19\(6318\):*:*:*:*:*:*:* Versions 15.03.05.19(6318) Vulnerable ·Tenda
  • cpe:2.3:h:tenda:ac6:2.0:*:*:*:*:*:*:* Versions 2.0 Running on ·Tenda
  • cpe:2.3:h:tenda:ac6:1.0:*:*:*:*:*:*:* Versions 1.0 Running on ·Tenda
  • cpe:2.3:o:tenda:ac9_firmware:15.03.05.19\(6318\):*:*:*:*:*:*:* Versions 15.03.05.19(6318) Vulnerable ·Tenda
  • cpe:2.3:h:tenda:ac9:1.0:*:*:*:*:*:*:* Versions 1.0 Running on ·Tenda
  • cpe:2.3:o:tenda:ac19_firmware:15.03.05.19\(6318\):*:*:*:*:*:*:* Versions 15.03.05.19(6318) Vulnerable ·Tenda
  • cpe:2.3:h:tenda:ac19:1.0:*:*:*:*:*:*:* Versions 1.0 Running on ·Tenda
  • cpe:2.3:o:tenda:ac18_firmware:15.03.05.19\(6318\):*:*:*:*:*:*:* Versions 15.03.05.19(6318) Vulnerable ·Tenda
  • cpe:2.3:h:tenda:ac18:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Tenda

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-38823
  2. 2026-10-03 Alias added: GHSA-9jpx-jr52-334g

References

Other 1

  • TI-2024-37948 Tenda AC18 V15.03.05.19 was discovered to contain a stack overflow via the startIP… CVSS 3.1CRITICAL 9.8
  • TI-2024-37947 Tenda AC18 V15.03.05.19 was discovered to contain a stack overflow via the firewallEn… CVSS 3.1CRITICAL 9.8
  • TI-2024-37946 Tenda AC18 V15.03.05.19 was discovered to contain a stack overflow via the devName… CVSS 3.1CRITICAL 9.8
  • TI-2024-37945 Tenda AC18 V15.03.05.19 was discovered to contain a stack overflow via the limitSpeedUp… CVSS 3.1CRITICAL 9.8
  • TI-2024-37942 Tenda AC18 V15.03.05.19 was discovered to contain a stack overflow via the ssid parameter… CVSS 3.1CRITICAL 9.8
  • TI-2024-22327 Tenda AC18 V15.03.05.05 has a stack overflow vulnerability in the remoteIp parameter from formSetSafeWanWebMan function. CVSS 3.1CRITICAL 9.8
See all 102 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences