CISA KEV · Known exploitedCritical

CVE-2021-36260

Hikvision Security cameras web server

A command injection vulnerability in the web server of some Hikvision product. Due to the insufficient input validation, attacker can exploit the vulnerability to launch a command injection attack by sending some messages with malicious commands.

CVSS
9.8
EPSS
99.9%
100.0% percentile
CISA KEV
Listed
Published
2021.09.22
PRIORITY ASSESSMENT

Immediate review

CISA has listed this vulnerability in the Known Exploited Vulnerabilities catalog.

Known exploitationConfirmed by CISA KEV
Exploit probability99.9%
Technical severityCVSS 9.8

Vulnerability overview

A command injection vulnerability in the web server of some Hikvision product. Due to the insufficient input validation, attacker can exploit the vulnerability to launch a command injection attack by sending some messages with malicious commands.

Affected product and versions

Product
Hikvision Security cameras web server
Affected versions
>= 4.30.210 <= 4.31.000, >= 4.30.300 <= 4.31.100
Fixed versions
No verified fixed-version field is available yet

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide
CISA required action

Apply updates per vendor instructions.

Due date: 2022.01.24
  1. 1
    Identify

    Confirm that Hikvision Security cameras web server and an affected version are present.

  2. 2
    Prioritize

    Combine exploitation signals with asset exposure and business criticality.

  3. 3
    Remediate

    Follow the vendor advisory or supported update path and preserve rollback options.

  4. 4
    Verify

    Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE
CWE-78
KEV added
2022.01.10
Ransomware use
미확인
CVE-2021-36260 — Hikvision Security cameras web server | SECUFOCUS NOW