CVE-2017-15655

Severity: critical (CVSS 9.6 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 3.1% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2018-01-31 · updated 2026-06-17
Weakness: CWE-119

Description

Multiple buffer overflow vulnerabilities exist in the HTTPd server in Asus asuswrt version <=3.0.0.4.376.X. All have been fixed in version 3.0.0.4.378, but this vulnerability was not previously disclosed. Some end-of-life routers have this version as the newest and thus are vulnerable at this time. This vulnerability allows for RCE with administrator rights when the administrator visits several pages.

Affected products

Asuswrt: before 3.0.0.4.378 — fixed in 3.0.0.4.378

How to fix

Upgrade to a fixed version: Asuswrt 3.0.0.4.378. Check the vendor advisory for mitigations.

References

http://packetstormsecurity.com/files/145921/ASUSWRT-3.0.0.4.382.18495-Session-Hijacking-Information-Disclosure.html
http://seclists.org/fulldisclosure/2018/Jan/63
http://sploit.tech/2018/01/16/ASUS-part-I.html
http://packetstormsecurity.com/files/145921/ASUSWRT-3.0.0.4.382.18495-Session-Hijacking-Information-Disclosure.html
http://seclists.org/fulldisclosure/2018/Jan/63
http://sploit.tech/2018/01/16/ASUS-part-I.html

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