CVE-2020-36199Public exploitNetwork attack vector

Root command execution via unsanitized interface value

Published Jan 21, 2021 · Updated Aug 4, 2024

OS command injection in Kaspersky TinyCheck before commits 9fd360d and ea53de8 allows remote attackers to execute commands as root. The capture service inserts the editable network/in interface value into a tshark command passed to Popen with shell=True, without neutralizing shell metacharacters. Default backend credentials and the companion SSRF path permit remote configuration changes and capture triggering, completing root-level command execution.

CVSS severity9.8
Critical
EPSS probability2.18%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

OS command injection in Kaspersky TinyCheck before commits 9fd360d and ea53de8 allows remote attackers to execute commands as root. The capture service inserts the editable network/in interface value into a tshark command passed to Popen with shell=True, without neutralizing shell metacharacters. Default backend credentials and the companion SSRF path permit remote configuration changes and capture triggering, completing root-level command execution.

The record

CVE
CVE-2020-36199
Published
Jan 21, 2021
Updated
Aug 4, 2024
Vendor
Kaspersky
Product
TinyCheck
Classifications
CWE-78, CWE-20, T1059.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 21, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=without commits 9fd360d and ea53de8

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Kaspersky · TinyCheckversion=without commits 9fd360d and ea53de8

Published CVSS scores

7.5NIST NVDAV:N/AC:L/Au:N/C:P/I:P/A:P
9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
CWE-20Improper Input Validation
T1059.004Command and Scripting Interpreter: Unix Shell

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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