CVE-2019-13955 json
Mikrotik RouterOS before 6.44.5 (long-term release tree) is vulnerable to stack exhaustion.
published 2019-07-26 7 y ago modified 2026-06-17 4 mo ago also EUVD-2019-5222
- cvss
- 6.5
- version 3.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 3.8%
- EPSS 3.8% chance of exploitation in 30 days, percentile 89%
- public exploits
- 0
- none known
Summary
Mikrotik RouterOS before 6.44.5 (long-term release tree) is vulnerable to stack exhaustion. By sending a crafted HTTP request, an authenticated remote attacker can crash the HTTP server via recursive parsing of JSON. Malicious code cannot be injected.
Patch / fix
- mikrotik routeros 6.44.5
Exploit prediction
3.75% chance of exploitation in the next 30 days, higher than 89% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.0 | 6.5 | CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
| NVD | 2.0 | 4.0 | AV:N/AC:L/Au:S/C:N/I:N/A:P |
Classification
- Weakness
-
- CWE-674 Uncontrolled Recursion
References
-
seclists.org
/fulldisclosure/2019/Jul/20
mailing-list, third-party-advisory
-
packetstormsecurity.com
/files/153733/Mikrotik-RouterOS-Resource-Stack-Exhaustion.html
third-party-advisory, vdb-entry
Sources
- CVE List CVE-2019-13955
- NVD CVE-2019-13955
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.