CVE-2026-9345Edimax EW-7438RPn webs formWizSurvey buffer overflow
- 8.7HighCVSS base score
- 0.54%Exploitation in 30 daysEPSS · top 54% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- YesPublic exploitsa reference or SSVC says so
Description
A vulnerability was detected in Edimax EW-7438RPn up to 1.31. This affects the function formWizSurvey of the file /goform/formWizSurvey of the component webs. Performing a manipulation of the argument ssid/manualssid/ip/mask/gateway results in buffer overflow. The attack is possible to be carried out remotely. The exploit is now public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Public exploit
An exploit or proof of concept is public: anyone can try it against an unpatched system. A reference of the record is tagged as an exploit. CISA's SSVC rates its exploitation: a proof of concept is public.
Show the exploits1
References tagged exploit1 reference
Timeline
ID reserved
By VulDB
- 1 day later
· 1 day later
Published
- 2 days later
· 2 days later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| VulDBCNA (assigner) | 4.0 | High8.7 | CVSS: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 |
| VulDBCNA (assigner) | 3.1 | High8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R |
| VulDBCNA (assigner) | 3.0 | High8.8 | CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R |
| VulDBCNA (assigner) | 2.0 | Critical9.0 | AV:N/AC:L/Au:S/C:C/I:C/A:C/E:POC/RL:ND/RC:UR |
| NVDNVD · Deferred | 4.0 | High7.4 | CVSS: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/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
- EPSS (exploitation in 30 days)
- 0.54% · top 54% of all CVEs (13 Nov 2026)
- CISA SSVC
- Exploitation: poc · Automatable: no · Technical impact: total
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 8.7.
Affected products
- affected 1.0
- affected 1.1
- affected 1.2
- affected 1.3
- affected 1.4
- affected 1.5
- affected 1.6
- affected 1.7
- affected 1.8
- affected 1.9
- affected 1.10
- affected 1.11
- affected 1.12
- affected 1.13
- affected 1.14
- affected 1.15
- affected 1.16
- affected 1.17
- affected 1.18
- affected 1.19
- affected 1.20
- affected 1.21
- affected 1.22
- affected 1.23
- affected 1.24
- affected 1.25
- affected 1.26
- affected 1.27
- affected 1.28
- affected 1.29
- affected 1.30
- affected 1.31
References
References5
- VDB-365308 | Edimax EW-7438RPn webs formWizSurvey buffer overflow (opens in a new tab)vdb-entrytechnical-description
- VDB-365308 | CTI Indicators (IOB, IOC, IOA) (opens in a new tab)signaturepermissions-required
- Submit #813886 | Edimax EW-7438RPn 1.31 Stack-based Buffer Overflow (opens in a new tab)third-party-advisory
- Submit #811542 | EDIMAX EW-7438RPn Mini EW-7438RPn Mini Firmware 1.28a (Version : 1.28a) Buffer Overflow (Duplicate) (opens in a new tab)third-party-advisory
- https://github.com/wudipjq/my_vuln/blob/main/Edimax/vuln_3/3.md (opens in a new tab)exploit
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2026-31555 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2026-9345)Record last updated .