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TI-2023-00742 Aliases CVE-2023-0782GHSA-mjgf-fjmw-jf84

Tenda AC23 httpd formGetSysToolDDNS out-of-bounds write

Priority HIGH 76CWE-787Published · 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 · NVD. Fix status from CNA. Impact type from CWE-787 and the CVSS impact.

Summary

A vulnerability was found in Tenda AC23 16.03.07.45 and classified as critical. Affected by this issue is the function formSetSysToolDDNS/formGetSysToolDDNS of the file /bin/httpd. The manipulation leads to out-of-bounds write. The attack may be launched remotely. The exploit has been disclosed to the public and may be used. The identifier of this vulnerability is VDB-220640.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.01473 73rd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA and NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
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
TendaAC2316.03.07.45—No fix listedCNA
  • AC23 VendorTenda Affected 16.03.07.45 Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:o:tenda:ac23_firmware:16.03.07.45:*:*:*:*:*:*:*16.03.07.45VulnerableTenda
cpe:2.3:h:tenda:ac23:-:*:*:*:*:*:*:*not specified by NVDRunning onTenda
  • cpe:2.3:o:tenda:ac23_firmware:16.03.07.45:*:*:*:*:*:*:* Versions 16.03.07.45 Vulnerable ·Tenda
  • cpe:2.3:h:tenda:ac23:-:*:*:*:*:*:*:* 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-2023-0782
  2. 2026-10-03 Alias added: GHSA-mjgf-fjmw-jf84

References

Exploit 1

  • TI-2023-21552 Tenda AC23 Vv16.03.07.45_cn is vulnerable to Buffer Overflow via sub_450A4C function. CVSS 3.1CRITICAL 9.8
  • TI-2025-08798 Tenda AC21/AC23 GetParentControlInfo stack-based overflow CVSS 4.0CRITICAL 9.3
  • TI-2026-01118 Tenda AC23 WifiExtraSet buffer overflow CVSS 4.0HIGH 8.7
  • TI-2026-00437 Tenda AC23 PowerSaveSet sscanf buffer overflow CVSS 4.0HIGH 8.7
  • TI-2025-13894 Tenda AC23 HTTP POST Request formSetPPTPUserList buffer overflow CVSS 4.0HIGH 8.7
  • TI-2025-13893 Tenda AC23 SetIpMacBind fromSetIpMacBind stack-based overflow CVSS 4.0HIGH 8.7
See all 26 →

Sources

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