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CVE-2020-20236

22
FAUCET Score

CVE-2020-20236 is a memory corruption vulnerability affecting Mikrotik RouterOS version 6.46.3 (stable tree) within the /nova/bin/sniffer process. An authenticated remote attacker can exploit this flaw to trigger a Denial of Service (DoS) due to improper memory access. With a CVSS score of 6.5 (Medium), this vulnerability requires authenticated access but has low attack complexity, impacting availability. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
6.46.3CPE matchmatch criteria
cpe:2.3:o:mikrotik:routeros:6.46.3:*:*:*:-:*:*:*

CVSS Data

CVSS version used by this source: 3.1

6.5MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
3.17%
Probability of exploitation in next 30 days
EPSS Percentile
86.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0317 is in the 96th percentile among its peer group of 21,977 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

packetstormsecurity.com / files/162513/Mikrotik-RouterOS-6.46.5-Memory-Corruption-Assertion-Failure.html
ExploitThird Party AdvisoryVDB Entry
seclists.org / fulldisclosure/2021/May/15
ExploitMailing ListThird Party Advisory
mikrotik.com
Product