CVE-2020-20262
Mikrotik RouterOs before 6.47 (stable tree) suffers from an assertion failure vulnerability in the /ram/pckg/security/nova/bin/ipsec process.
Does this matter?
Lower severity and a low EPSS score (2.14%). Track it; it rarely justifies an emergency change on its own.
Description
Mikrotik RouterOs before 6.47 (stable tree) suffers from an assertion failure vulnerability in the /ram/pckg/security/nova/bin/ipsec process. An authenticated remote attacker can cause a Denial of Service due to an assertion failure via a crafted packet.
- CVSS 3.1
- 6.5 MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 2.14% probability · 82th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-617
- Affected
- mikrotik/routeros
- Source
- cve@mitre.org
EPSS 2.1% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://github.com/cq674350529/pocs_slides/blob/master/pocs/MikroTik/vul_ipsec/README.mdBroken Link
- https://seclists.org/fulldisclosure/2021/May/2Exploit, Mailing List, Third Party Advisory
- https://github.com/cq674350529/pocs_slides/blob/master/pocs/MikroTik/vul_ipsec/README.mdBroken Link
- https://seclists.org/fulldisclosure/2021/May/2Exploit, Mailing List, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.