CVE-2026-0640

🗓️ 06 Jan 2026 15:32:08Reported by VulDBType

cve🔗 web.nvd.nist.gov📰️ 1 Media mentions👁 10 Views🌐 WEB

CVE-2026-0640 affects Tenda AC23; PowerSaveSet overflow via Time parameter enabling remote attack.

Reporter	Title	Published	Views	Family All 8
Circl	CVE-2026-0640	6 Jan 202610:25	–	circl
CNNVD	Tenda AC23 安全漏洞	6 Jan 202600:00	–	cnnvd
Cvelist	CVE-2026-0640 Tenda AC23 PowerSaveSet sscanf buffer overflow	6 Jan 202615:32	–	cvelist
EUVD	EUVD-2026-1008	6 Jan 202615:32	–	euvd
NVD	CVE-2026-0640	6 Jan 202616:15	–	nvd
Positive Technologies	PT-2026-1431	6 Jan 202600:00	–	ptsecurity
RedhatCVE	CVE-2026-0640	8 Jan 202603:14	–	redhatcve
Vulnrichment	CVE-2026-0640 Tenda AC23 PowerSaveSet sscanf buffer overflow	6 Jan 202615:32	–	vulnrichment

NVD

Vulners

Node

tenda ac23_firmwareMatch16.03.07.52

AND

tenda ac23Match-

[
  {
    "vendor": "Tenda",
    "product": "AC23",
    "versions": [
      {
        "version": "16.03.07.52",
        "status": "affected"
      }
    ],
    "cpes": [
      "cpe:2.3:o:tenda:ac23_firmware:*:*:*:*:*:*:*:*"
    ]
  }
]

Source	Link
tenda	www.tenda.com.cn/
github	www.github.com/xyh4ck/iot_poc/blob/main/Tenda%20AC23_Buffer_Overflow/Tenda%20AC23_Buffer_Overflow.md
github	www.github.com/xyh4ck/iot_poc/blob/main/Tenda%20AC23_Buffer_Overflow/Tenda%20AC23_Buffer_Overflow.md
vuldb	www.vuldb.com/
vuldb	www.vuldb.com/
vuldb	www.vuldb.com/

Parameter	Position	Path	Description	CWE
Time	request body	/goform/PowerSaveSet	Buffer overflow in sscanf when parsing Time parameter in /goform/PowerSaveSet on Tenda AC23 allowing remote exploitation.	CWE-120, CWE-119

23 Feb 2026 08:21Current

8.7High risk

Vulners AI Score8.7

CVSS 3.18.8 - 9.8

CVSS 48.7

CVSS 29

CVSS 38.8

EPSS0.00172

SSVC