Buffer overflow in Mikrotik Routeros
CVE-2017-20149
The Mikrotik RouterOS web server allows memory corruption in releases before Stable 6.38.5 and Long-term 6.37.5, aka Chimay-Red. A remote and unauthenticated user can trigger the vulnerability by sending a crafted HTTP request. An attacker can use this vulnerability to execute arbitrary code on the affected system, as exploited in the wild in mid-2017 and later.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.025 (84.3th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 84th percentile — 84.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.020 · newest: 0.025 · change: +0.005
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/BigNerd95/Chimay-Red (Exploit, Third Party Advisory)
- www.bleepingcomputer.com/news/security/hajime-botnet-makes-a-comeback-with-mass… (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2017-20149?
- CVE-2017-20149 is a critical-severity vulnerability in Mikrotik Routeros, classified under Out-of-bounds Write. CVSS score: 9.8/10. Published 2022-10-15.
- How severe is CVE-2017-20149?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2017-20149 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.