Vulnerability threat dossier

CVE-2021-36260

hikvisionds-2cd2021g1-i\(w\)

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.

VTP deterministic threat59.5of 100 · CVSS excluded

VTP analyst assessment

Hikvision camera web-server command injection

AI-assisted analytical recommendationDoes not set factual exploitation state
AI review stateREVIEWED
AI priorityNONE
AI confidence90%
Public exploitation · VTP factKEV

Assessment

CISA KEV lists this Hikvision vulnerability as known to be exploited globally. Public exploit tooling is reported. The available press source describes a botnet, but its supplied summary does not name this CVE.

Why it matters

  • An unauthenticated network attacker can inject commands through the affected web server.
  • Public tooling can lower the effort needed to test vulnerable devices.

Evidence

1 record references and 1 source references passed trusted post-response validation. The current deterministic record contains 0 independent evidence groups.

Uncertainties

The tooling evidence does not prove reliable exploitation.

We do not know whether affected cameras are present, exposed, or configured in this environment.

No VTP sensor telemetry is available.

First-party sensor telemetry is active; no disclosure-eligible deterministic observation is currently public for this CVE. This does not mean no activity was observed.

Next watchpoint

Review in your environment: if you use affected Hikvision cameras, check web-server exposure and patch status.

AI baseline history (3)
  1. BASELINE ASSESSED
    Hikvision camera web-server command injectiongpt-5.6-terra · low
  2. BASELINE ASSESSED
    Exploited Hikvision command injectiongpt-5.6-sol · high
  3. BASELINE ASSESSED
    Hikvision web-server command injectiongpt-5.6-sol · high
Technical severityCRITICALCVSS 9.8 · technical context
Public exploitationKEVGlobal public evidence
Exploit maturityPOCReliability not implied
EPSS1.00100th percentile · prediction
Evidence confidence90%Strongest independent active claim
VelocitySTABLEMaterial events only
First-party telemetryFirst-party sensor telemetry is active; no disclosure-eligible deterministic observation is currently public for this CVE. This does not mean no activity was observed.
Availability: SENSOR_ONLINE_NO_MATCHING_ACTIVITY · Evidence: UNKNOWN
01

VTP deterministic assessment

Why this matters

  1. 01

    CISA KEV lists this vulnerability as known to be exploited globally.

  2. 02

    A proof of concept is reported; functional reliability is not established.

  3. 03

    EPSS is 1.00; this is predictive context, not exploitation evidence.

  4. 04

    First-party sensor telemetry is active; no disclosure-eligible deterministic observation is currently public for this CVE. This does not mean no activity was observed.

02

Material change ledger

What changed

EXPLOIT TEMPLATE AVAILABLEPublic exploit-oriented template available
KEV ADDEDCISA KEV entry added
03

Claim provenance

Evidence and source independence

2publications detected
2underlying evidence chains

0 primary sources · 0 dependent secondary reports · 1 reports with unresolved independence. Repetition remains visible without multiplying confirmation.

Source claimEXPLOIT TEMPLATE AVAILABLEPUBLIC EXPLOIT TEMPLATE
90%claim confidence
PRIMARYcorpus:OPENVAS_NASL:9c2cc71f97f447ff3575921cbe1710003386df6cACTIVE
04

Event history

Threat timeline

  1. 02:3311 Sept
    EXPLOIT TEMPLATE AVAILABLE

    Public exploit-oriented template available

    Greenbone Community Feed published new or materially changed exploit-oriented tooling for this CVE. This is availability evidence, not evidence of exploitation in the wild.

  2. 00:0010 Jan
    KEV ADDED

    CISA KEV entry added

    CISA lists global known exploitation. This is not a VTP sensor observation.

05

Original publications

Source record

Exploit tooling coverage changed for 6 CVEs

Greenbone Community Feed recorded exploit-tooling coverage changes for 6 CVEs in this pinned revision. 6 have an active availability assertion for this revision. Tooling evidence does not establish exploitation in the wild or successful execution.

CVE-2021-36260CVE-2022-0543CVE-2022-21371CVE-2022-22947CVE-2022-22963CVE-2022-24716
Separate evidence group

Evooo1Bot Linux Botnet Exploits Known Flaws to Turn Edge Devices Into SOCKS5 Proxies

Cybersecurity researchers have flagged a previously undocumented Linux botnet family dubbed Evooo1Bot that derives its core functionality from the Mirai botnet source code and is equipped to turn internet-facing devices into SOCKS proxies. "While the malware reuses the DDoS engine from the publicly leaked Mirai source code, it extends the original framework with numerous capabilities, including

CVE-2007-3010CVE-2016-6277CVE-2018-14558CVE-2019-14931CVE-2020-10987CVE-2021-36260CVE-2021-46422CVE-2022-26134CVE-2022-29464CVE-2022-30525CVE-2022-37055CVE-2023-1389CVE-2024-10914CVE-2024-29269CVE-2024-4577CVE-2025-10123CVE-2025-1974CVE-2025-55583
Separate evidence group
Original
06

Technical vulnerability data

Context, not threat proof

VTP threat score59.5vtp-threat-v1-public
Public exploitation30 / 30
EPSS prediction19.97 / 20
Exploit availability7.5 / 15
Source independence0 / 15
Intelligence recency2 / 10
Threat acceleration0 / 10
CVSS technical severityExcluded
CVSS
9.8 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE
CWE-78
CPE records
500
Deterministic history records
20
Primary technical reference
07

Raw observations

First-party sensor records

First-party sensor telemetry is active; no disclosure-eligible deterministic observation is currently public for this CVE. This does not mean no activity was observed.