CVE-2018-18320
An attacker can execute arbitrary commands because exec.php has a popen call.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (5.24%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
An issue was discovered in the Merlin.PHP component 0.6.6 for Asuswrt-Merlin devices. An attacker can execute arbitrary commands because exec.php has a popen call. NOTE: the vendor indicates that Merlin.PHP is designed only for use on a trusted intranet network, and intentionally allows remote code execution
- CVSS 3.0
- 9.8 CRITICALCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 5.24% probability · 92th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Affected
- asuswrt-merlin project/rt-ac5300 firmware · asuswrt-merlin project/rt ac1900p firmware · asuswrt-merlin project/rt-ac68u firmware · asuswrt-merlin project/rt-ac68p firmware · asuswrt-merlin project/rt-ac88u firmware · asuswrt-merlin project/rt-ac66u b1 firmware · asuswrt-merlin project/rt-ac56u firmware · asuswrt-merlin project/rt-ac3200 firmware · asuswrt-merlin project/rt-ac68uf firmware · asuswrt-merlin project/rt-ac87 firmware · asuswrt-merlin project/rt-ac3100 firmware · asuswrt-merlin project/rt-ac1900 firmware · asuswrt-merlin project/rt-ac86u firmware · asuswrt-merlin project/rt-ac2900 firmware
- Source
- cve@mitre.org
EPSS 5.2% since 27 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://blog.51cto.com/010bjsoft/2298828Exploit, Third Party Advisory
- https://github.com/qoli/Merlin.PHP/issues/26Exploit, Third Party Advisory
- http://blog.51cto.com/010bjsoft/2298828Exploit, Third Party Advisory
- https://github.com/qoli/Merlin.PHP/issues/26Exploit, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.