VulnerabilityAnalyzed
CVE-2026-4903
This vulnerability affects the function formQuickIndex of the file /goform/QuickIndex of the component POST Request Handler.
HIGH 7.4EPSS 5.46%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (5.46%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
A flaw has been found in Tenda AC5 15.03.06.47. This vulnerability affects the function formQuickIndex of the file /goform/QuickIndex of the component POST Request Handler. This manipulation of the argument PPPOEPassword causes stack-based buffer overflow. The attack may be initiated remotely. The exploit has been published and may be used.
- 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
- 5.46% probability · 92th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-119, CWE-121, CWE-787
- Affected
- tenda/ac5 firmware
- Source
- cna@vuldb.com
References
- https://lavender-bicycle-a5a.notion.site/Tenda_AC5_QuickIndex_PPPOEPassword-32053a41781f808dae98f99c99bcb21c?source=copy_linkExploit, Third Party Advisory
- https://vuldb.com/?ctiid.353654Permissions Required, VDB Entry
- https://vuldb.com/?id.353654Third Party Advisory, VDB Entry
- https://vuldb.com/?submit.777380Third Party Advisory, VDB Entry
- https://www.tenda.com.cn/Product
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.