CVE-2019-3976

mediumpriority · track · 36EPSS 0.017 · 77 %ileEURUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

1.68% (77th) EPSS

CVSS 6.5 · medium

Is it mine?

5 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · fstec_bdu · nvd

EPSS · scored 2026-10-26

RouterOS 6.45.6 Stable, RouterOS 6.44.5 Long-term, and below are vulnerable to an arbitrary directory creation vulnerability via the upgrade package's name field. If an authenticated user installs a malicious package then a directory could be created and the developer shell could be enabled.

cvss

Technical severity, 0–10. One row per scoring source.

8.8

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.5–8.8

v2.06.5mediumAV:N/AC:L/Au:S/C:P/I:P/A:Pprimary · NVD / NIST USexploitability 8 · impact 6.4

v3.18.8highCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 2.8 · impact 5.9

v3.18.8highAV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hsecondary · FSTEC (BDU) RU

v3.18.1highCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-22USprimaryCWE-20USCWE-23USCWE-23US

affected products (5)

Products and version ranges known to be affected.

n/a MikroTik RouterOS≤ RouterOS 6.45.6 Stable and below. RouterOS 6.44.5 Long-term and below.enisa_euvdEU
MikroTik RouterOS≤ 6.44.5 Long-termfstec_bduRU
MikroTik RouterOS≤ 6.45.6 Stablefstec_bduRU
mikrotik routeros≤ 6.44.5nvdUScpe:2.3:o:mikrotik:routeros:*:*:*:*:*:*:*:*
mikrotik routeros≤ 6.45.6nvdUScpe:2.3:o:mikrotik:routeros:*:*:*:*:*:*:*:*

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu nvd NVD CVE.org MITRE

published 2019-10-29modified 2026-06-17

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+12508 more

references (5)

External citations — patches, advisories, analysis.

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