VulnerabilityAnalyzed
CVE-2026-0640
A weakness has been identified in Tenda AC23 16.03.07.52.
HIGH 7.4EPSS 3.43%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (3.43%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
A weakness has been identified in Tenda AC23 16.03.07.52. This affects the function sscanf of the file /goform/PowerSaveSet. Executing a manipulation of the argument Time can lead to buffer overflow. The attack can be launched remotely. The exploit has been made available to the public and could be used for attacks.
- CVSS 4.0
- 7.4 HIGHCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M
- EPSS
- 3.43% probability · 88th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-119, CWE-120
- Affected
- tenda/ac23 firmware
- Source
- cna@vuldb.com
References
- https://github.com/xyh4ck/iot_poc/blob/main/Tenda%20AC23_Buffer_Overflow/Tenda%20AC23_Buffer_Overflow.mdExploit, Third Party Advisory
- https://github.com/xyh4ck/iot_poc/blob/main/Tenda%20AC23_Buffer_Overflow/Tenda%20AC23_Buffer_Overflow.md#pocExploit, Third Party Advisory
- https://vuldb.com/?ctiid.339683Permissions Required, VDB Entry
- https://vuldb.com/?id.339683Third Party Advisory, VDB Entry
- https://vuldb.com/?submit.731772Third Party Advisory, VDB Entry
- https://www.tenda.com.cn/Product
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.