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CVE-2019-16160

An integer underflow in the SMB server of MikroTik RouterOS before 6.45.5 allows remote...

7.5 High

An integer underflow in the SMB server of MikroTik RouterOS before 6.45.5 allows remote unauthenticated attackers to crash the service.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
None
Integrity
None
Availability
High

Exploit likelihood

2.56%Up 1.5 points since Apr 14, 2021
90%50%10%1%

What each source reports

NVD Score used 7.5

An integer underflow in the SMB server of MikroTik RouterOS before 6.45.5 allows remote unauthenticated attackers to crash the service.

Record
CVE-2019-16160
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 2.0
5.0 MediumAV:N/AC:L/Au:N/C:N/I:N/A:P
Weakness
CWE-191
Updated
2026-11-02
CVE List No score

An integer underflow in the SMB server of MikroTik RouterOS before 6.45.5 allows remote unauthenticated attackers to crash the service.

Record
CVE-2019-16160
Updated
2026-11-02
EUVDEUVD-2019-6980 No score

An integer underflow in the SMB server of MikroTik RouterOS before 6.45.5 allows remote unauthenticated attackers to crash the service.

Record
EUVD-2019-6980
Updated
2026-11-03
GitHub AdvisoriesGHSA-g9rm-827c-qwc8 No score

An integer underflow in the SMB server of MikroTik RouterOS before 6.45.5 allows remote...

An integer underflow in the SMB server of MikroTik RouterOS before 6.45.5 allows remote unauthenticated attackers to crash the service.

Record
GHSA-g9rm-827c-qwc8
Weakness
CWE-190
Updated
2026-11-02

Affected products

History

History
RecordedChangedSources
facts
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2019-16160 is a high vulnerability (CVSS 7.5) in Mikrotik Routeros, published October 7, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.56%, the 85th percentile. No source names a fixed version.

References

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