CVE-2017-6549
Session hijack vulnerability in httpd on ASUS RT-N56U, RT-N66U, RT-AC66U, RT-N66R, RT-AC66R, RT-AC68U, RT-AC68R, RT-N66W, RT-AC66W, RT-AC87R, RT-AC87U, RT-AC51U, RT-AC68P, RT-N11P, RT-N12+, RT-N12E B1, RT-AC3200, RT-AC53U, RT-AC1750, RT-AC1900P,…
Does this matter?
A public exploit is published in Exploit-DB and the impact is high, while EPSS rates exploitation at 7.6%. Anyone can run this; patch or mitigate before the next change window and check exposed instances for signs of use.
Description
Session hijack vulnerability in httpd on ASUS RT-N56U, RT-N66U, RT-AC66U, RT-N66R, RT-AC66R, RT-AC68U, RT-AC68R, RT-N66W, RT-AC66W, RT-AC87R, RT-AC87U, RT-AC51U, RT-AC68P, RT-N11P, RT-N12+, RT-N12E B1, RT-AC3200, RT-AC53U, RT-AC1750, RT-AC1900P, RT-N300, and RT-AC750 routers with firmware before 3.0.0.4.380.7378; RT-AC68W routers with firmware before 3.0.0.4.380.7266; and RT-N600, RT-N12+ B1, RT-N11P B1, RT-N12VP B1, RT-N12E C1, RT-N300 B1, and RT-N12+ Pro routers with firmware before 3.0.0.4.380.9488; and Asuswrt-Merlin firmware before 380.65_2 allows remote attackers to steal any active admin session by sending cgi_logout and asusrouter-Windows-IFTTT-1.0 in certain HTTP headers.
- CVSS 3.0
- 8.8 HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- EPSS
- 7.55% probability · 94th percentile
- Public exploits
- 1 in Exploit-DB · first 8 March 2017
- CISA KEV
- Not listed
- Weakness
- CWE-287
- Affected
- asus/rt-ac53 firmware
- Source
- cve@mitre.org
EPSS moved from 6.5% on 21 September 2026 to 7.6% on 27 October 2026. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”.
Public exploits (1)
Entries in Exploit-DB that cite this CVE. Links go to the Exploit-DB page and to the file in the public repository; nothing is hosted here. A verified tick means the Exploit-DB team confirmed the exploit works against the stated version.
References
- http://www.securityfocus.com/bid/96938
- https://asuswrt.lostrealm.ca/changelog
- https://bierbaumer.net/security/asuswrt/#session-stealingExploit, Third Party Advisory
- https://www.exploit-db.com/exploits/41572/
- http://www.securityfocus.com/bid/96938
- https://asuswrt.lostrealm.ca/changelog
- https://bierbaumer.net/security/asuswrt/#session-stealingExploit, Third Party Advisory
- https://www.exploit-db.com/exploits/41572/
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.