CVE-2018-20336
There is a stack-based buffer overflow issue in parse_req_queries function in wanduck.c via a long string over UDP, which may lead to an information leak.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.73%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
An issue was discovered in ASUSWRT 3.0.0.4.384.20308. There is a stack-based buffer overflow issue in parse_req_queries function in wanduck.c via a long string over UDP, which may lead to an information leak.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- EPSS
- 1.73% probability · 78th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-120
- Affected
- asus/asuswrt-merlin
- Source
- cve@mitre.org
EPSS 1.7% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://starlabs.sg/advisories/18-20336/Exploit, Third Party Advisory
- https://www.asus.com/Networking/RT-AC1200G-plus/HelpDesk_BIOS/
- https://starlabs.sg/advisories/18-20336/Exploit, Third Party Advisory
- https://www.asus.com/Networking/RT-AC1200G-plus/HelpDesk_BIOS/
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.