Vulnerability-Lookup

VAR-201705-3762

Vulnerability from variot - Updated: 2026-03-07 23:48

An Improper Authentication issue was discovered in Hikvision DS-2CD2xx2F-I Series V5.2.0 build 140721 to V5.4.0 build 160530, DS-2CD2xx0F-I Series V5.2.0 build 140721 to V5.4.0 Build 160401, DS-2CD2xx2FWD Series V5.3.1 build 150410 to V5.4.4 Build 161125, DS-2CD4x2xFWD Series V5.2.0 build 140721 to V5.4.0 Build 160414, DS-2CD4xx5 Series V5.2.0 build 140721 to V5.4.0 Build 160421, DS-2DFx Series V5.2.0 build 140805 to V5.4.5 Build 160928, and DS-2CD63xx Series V5.0.9 build 140305 to V5.3.5 Build 160106 devices. The improper authentication vulnerability occurs when an application does not adequately or correctly authenticate users. This may allow a malicious user to escalate his or her privileges on the system and gain access to sensitive information. plural Hikvision The product contains authentication vulnerabilities.Information is obtained, information is altered, and service operation is disrupted (DoS) There is a possibility of being put into a state. HikvisionCameras is a camera produced by Haikang. A number of HikvisionCameras have an incorrect authentication vulnerability. Multiple Hikvision Cameras are prone to an information-disclosure vulnerability and an authentication-bypass vulnerability. Other attacks are also possible. Hikvision DS-2CD2xx2F-I Series are all network camera products of China Hikvision Company

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CVE-2017-7921 (GCVE-0-2017-7921)

Vulnerability from cvelistv5 – Published: 2017-05-06 00:00 – Updated: 2026-03-06 05:01

Summary

Severity

9.8 (Critical)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

SSVC

Exploitation: active Automatable: yes Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-03-05 00:00 UTC

CWE

CWE-287

Assigner

icscert CNA under the icscert root

CNA scorecard B 75/100 over 343 records in the last 180 days details

References

8 references

URL	Tags
https://ics-cert.us-cert.gov/advisories/ICSA-17-124-01	x_refsource_MISC
http://www.securityfocus.com/bid/98313	vdb-entryx_refsource_BID
https://ghostbin.com/paste/q2vq2	x_refsource_MISC
http://www.hikvision.com/us/about_10805.html	x_refsource_MISC
https://www.hikvision.com/us-en/support/document-…
https://www.hikvision.com/cn/support/Cybersecurit…
https://www.hikvision.com/en/support/cybersecurit…
https://www.cisa.gov/known-exploited-vulnerabilit…	government-resource

Impacted products

1 product

Vendor	Product	Version
n/a	Hikvision Cameras	Affected: Hikvision Cameras

Date Public

2017-05-05 00:00

Show details on NVD website

JSON

To clipboard

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              "integrityImpact": "HIGH",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
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                  {
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                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-03-05T00:00:00+00:00",
                "version": "2.0.3"
              },
              "type": "ssvc"
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          },
          {
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              "content": {
                "dateAdded": "2026-03-05",
                "reference": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2017-7921"
              },
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        ],
        "providerMetadata": {
          "dateUpdated": "2026-03-06T05:01:18.718Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "references": [
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            "tags": [
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            ],
            "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2017-7921"
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        ],
        "title": "CISA ADP Vulnrichment"
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      ],
      "datePublic": "2017-05-05T00:00:00.000Z",
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}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

Order JSON

How durations are calculated

Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.

Each result shows its source dates. A negative interval means the end event came first; when date-only inputs leave the order open, the result says so. Date-only inputs are approximate. The earliest evidence wins: KEV report dates and sightings are labelled as such. Records describing another vulnerability are listed but never calculated from, and a PoC alone does not establish exploitation. Missing patch evidence does not prove that no patch exists. Filters below change the event list only.

Publication & reservation Sightings KEV catalogs Other timestamps

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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

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