Evidence dossier

CVE-2017-7921

CVE-2017-7921

78.7–99.5Priority evidence range

As known Jul 19, 2026, 5:00 AM UTCgen-56ccdaf9

Normalized restatement

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.

State: PUBLISHED
Published: May 6, 2017
Updated: Mar 6, 2026
Evidence coverage: 72%

CISA KEVCatalog member

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

FIRST EPSS100.00%

2026-07-18 · v2026.06.15 · percentile 100.0%

Source stateConflict visible

Distinct CVSS assessments remain side by side; none are averaged.

Source comparison

Who said what

CISA-ADPindependent enrichment

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CISA ADP Vulnrichment

Jul 19, 2026Original evidence ↗

CVEderivative copy

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CVE Program Container

Jul 19, 2026Original evidence ↗

icscertoriginal assertion

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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.

Jul 19, 2026Original evidence ↗

CISA KEVoriginal assertion

observed_exploitation

Hikvision Multiple Products Improper Authentication Vulnerability

Jul 19, 2026Original evidence ↗

FIRST EPSSoriginal assertion

model_probability

Probability 0.999980000000; percentile 0.999890000000

Jul 19, 2026Original evidence ↗

Applicability

Cited product scope

Trace impact →

n/aHikvision Cameras

[{"status": "affected", "version": "Hikvision Cameras"}]unknown

Unknown vendorUnknown product

cpe:2.3:h:hikvision:ds-2cd2032-i:-:*:*:*:*:*:*:*constrained

Unknown vendorUnknown product

cpe:2.3:h:hikvision:ds-2cd2112-i:-:*:*:*:*:*:*:*constrained

Unknown vendorUnknown product

cpe:2.3:h:hikvision:ds-2cd2132-i:-:*:*:*:*:*:*:*constrained

Unknown vendorUnknown product

cpe:2.3:h:hikvision:ds-2cd2212-i5:-:*:*:*:*:*:*:*constrained

Unknown vendorUnknown product

cpe:2.3:h:hikvision:ds-2cd2232-i5:-:*:*:*:*:*:*:*constrained

Unknown vendorUnknown product

cpe:2.3:h:hikvision:ds-2cd2312-i:-:*:*:*:*:*:*:*constrained

Unknown vendorUnknown product

cpe:2.3:h:hikvision:ds-2cd2332-i:-:*:*:*:*:*:*:*constrained

Unknown vendorUnknown product

cpe:2.3:h:hikvision:ds-2cd2412f-i\(w\):-:*:*:*:*:*:*:*constrained

Unknown vendorUnknown product

cpe:2.3:h:hikvision:ds-2cd2432f-i\(w\):-:*:*:*:*:*:*:*constrained

Unknown vendorUnknown product

cpe:2.3:h:hikvision:ds-2cd2512f-i\(s\):-:*:*:*:*:*:*:*constrained

Unknown vendorUnknown product

cpe:2.3:h:hikvision:ds-2cd2532f-i\(s\):-:*:*:*:*:*:*:*constrained

Unknown vendorUnknown product

cpe:2.3:h:hikvision:ds-2cd2612f-i\(s\):-:*:*:*:*:*:*:*constrained

Unknown vendorUnknown product

cpe:2.3:h:hikvision:ds-2cd2632f-i\(s\):-:*:*:*:*:*:*:*constrained

Unknown vendorUnknown product

cpe:2.3:h:hikvision:ds-2cd2712f-i\(s\):-:*:*:*:*:*:*:*constrained

Unknown vendorUnknown product

cpe:2.3:h:hikvision:ds-2cd2732f-i\(s\):-:*:*:*:*:*:*:*constrained

Unknown vendorUnknown product

cpe:2.3:h:hikvision:ds-2cd2t32-i3:-:*:*:*:*:*:*:*constrained

Unknown vendorUnknown product

cpe:2.3:h:hikvision:ds-2cd2t32-i5:-:*:*:*:*:*:*:*constrained

Unknown vendorUnknown product

cpe:2.3:h:hikvision:ds-2cd2t32-i8:-:*:*:*:*:*:*:*constrained

Unknown vendorUnknown product

cpe:2.3:h:hikvision:ds-2cd4012f-\(a\):-:*:*:*:*:*:*:*constrained

Unknown vendorUnknown product

cpe:2.3:h:hikvision:ds-2cd4012f-\(p\):-:*:*:*:*:*:*:*constrained

Unknown vendorUnknown product

cpe:2.3:h:hikvision:ds-2cd4012f-\(w\):-:*:*:*:*:*:*:*constrained

Unknown vendorUnknown product

cpe:2.3:h:hikvision:ds-2cd4012fwd-\(a\):-:*:*:*:*:*:*:*constrained

Unknown vendorUnknown product

cpe:2.3:h:hikvision:ds-2cd4012fwd-\(p\):-:*:*:*:*:*:*:*constrained

Unknown vendorUnknown product

cpe:2.3:h:hikvision:ds-2cd4012fwd-\(w\):-:*:*:*:*:*:*:*constrained

Unknown vendorUnknown product

cpe:2.3:h:hikvision:ds-2cd4024f-\(a\):-:*:*:*:*:*:*:*constrained

Unknown vendorUnknown product

cpe:2.3:h:hikvision:ds-2cd4024f-\(p\):-:*:*:*:*:*:*:*constrained

Unknown vendorUnknown product

cpe:2.3:h:hikvision:ds-2cd4024f-\(w\):-:*:*:*:*:*:*:*constrained

Unknown vendorUnknown product

cpe:2.3:h:hikvision:ds-2cd4032fwd-\(a\):-:*:*:*:*:*:*:*constrained

Unknown vendorUnknown product

cpe:2.3:h:hikvision:ds-2cd4032fwd-\(p\):-:*:*:*:*:*:*:*constrained

Unknown vendorUnknown product

cpe:2.3:h:hikvision:ds-2cd4032fwd-\(w\):-:*:*:*:*:*:*:*constrained

Unknown vendorUnknown product

cpe:2.3:h:hikvision:ds-2cd4112f-i\(z\):-:*:*:*:*:*:*:*constrained

Unknown vendorUnknown product

cpe:2.3:h:hikvision:ds-2cd4112fwd-i\(z\):-:*:*:*:*:*:*:*constrained

Unknown vendorUnknown product

cpe:2.3:h:hikvision:ds-2cd4124f-i\(z\):-:*:*:*:*:*:*:*constrained

Unknown vendorUnknown product

cpe:2.3:h:hikvision:ds-2cd4132fwd-i\(z\):-:*:*:*:*:*:*:*constrained

Unknown vendorUnknown product

cpe:2.3:h:hikvision:ds-2cd4212f-i\(h\):-:*:*:*:*:*:*:*constrained

Unknown vendorUnknown product

cpe:2.3:h:hikvision:ds-2cd4212f-i\(s\):-:*:*:*:*:*:*:*constrained

Unknown vendorUnknown product

cpe:2.3:h:hikvision:ds-2cd4212f-i\(z\):-:*:*:*:*:*:*:*constrained

Unknown vendorUnknown product

cpe:2.3:h:hikvision:ds-2cd4212fwd-i\(h\):-:*:*:*:*:*:*:*constrained

Unknown vendorUnknown product

cpe:2.3:h:hikvision:ds-2cd4212fwd-i\(s\):-:*:*:*:*:*:*:*constrained

Unknown vendorUnknown product

cpe:2.3:h:hikvision:ds-2cd4212fwd-i\(z\):-:*:*:*:*:*:*:*constrained

Unknown vendorUnknown product

cpe:2.3:h:hikvision:ds-2cd4224f-i\(h\):-:*:*:*:*:*:*:*constrained

Unknown vendorUnknown product

cpe:2.3:h:hikvision:ds-2cd4224f-i\(s\):-:*:*:*:*:*:*:*constrained

Unknown vendorUnknown product

cpe:2.3:h:hikvision:ds-2cd4224f-i\(z\):-:*:*:*:*:*:*:*constrained

Unknown vendorUnknown product

cpe:2.3:h:hikvision:ds-2cd4232fwd-i\(h\):-:*:*:*:*:*:*:*constrained

Unknown vendorUnknown product

cpe:2.3:h:hikvision:ds-2cd4232fwd-i\(s\):-:*:*:*:*:*:*:*constrained

Unknown vendorUnknown product

cpe:2.3:h:hikvision:ds-2cd4232fwd-i\(z\):-:*:*:*:*:*:*:*constrained

Unknown vendorUnknown product

cpe:2.3:h:hikvision:ds-2cd4312f-i\(h\):-:*:*:*:*:*:*:*constrained

Unknown vendorUnknown product

cpe:2.3:h:hikvision:ds-2cd4312f-i\(s\):-:*:*:*:*:*:*:*constrained

Unknown vendorUnknown product

cpe:2.3:h:hikvision:ds-2cd4312f-i\(z\):-:*:*:*:*:*:*:*constrained

Unknown vendorUnknown product

cpe:2.3:h:hikvision:ds-2cd4324f-i\(h\):-:*:*:*:*:*:*:*constrained

Unknown vendorUnknown product

cpe:2.3:h:hikvision:ds-2cd4324f-i\(s\):-:*:*:*:*:*:*:*constrained

Unknown vendorUnknown product

cpe:2.3:h:hikvision:ds-2cd4324f-i\(z\):-:*:*:*:*:*:*:*constrained

Unknown vendorUnknown product

cpe:2.3:h:hikvision:ds-2cd4332fwd-i\(h\):-:*:*:*:*:*:*:*constrained

Unknown vendorUnknown product

cpe:2.3:h:hikvision:ds-2cd4332fwd-i\(s\):-:*:*:*:*:*:*:*constrained

Unknown vendorUnknown product

cpe:2.3:h:hikvision:ds-2cd4332fwd-i\(z\):-:*:*:*:*:*:*:*constrained

Unknown vendorUnknown product

cpe:2.3:h:hikvision:ds-2cd63xx_series:-:*:*:*:*:*:*:*constrained

Unknown vendorUnknown product

cpe:2.3:h:hikvision:ds-2cd6412fwd:-:*:*:*:*:*:*:*constrained

Unknown vendorUnknown product

cpe:2.3:h:hikvision:ds-2dfx_series:-:*:*:*:*:*:*:*constrained

Unknown vendorUnknown product

cpe:2.3:o:hikvision:ds-2cd2032-i_firmware:-:*:*:*:*:*:*:*supported

Unknown vendorUnknown product

cpe:2.3:o:hikvision:ds-2cd2112-i_firmware:-:*:*:*:*:*:*:*supported

Unknown vendorUnknown product

cpe:2.3:o:hikvision:ds-2cd2132-i_firmware:-:*:*:*:*:*:*:*supported

Unknown vendorUnknown product

cpe:2.3:o:hikvision:ds-2cd2212-i5_firmware:-:*:*:*:*:*:*:*supported

Unknown vendorUnknown product

cpe:2.3:o:hikvision:ds-2cd2232-i5_firmware:-:*:*:*:*:*:*:*supported

Unknown vendorUnknown product

cpe:2.3:o:hikvision:ds-2cd2312-i_firmware:-:*:*:*:*:*:*:*supported

Unknown vendorUnknown product

cpe:2.3:o:hikvision:ds-2cd2332-i_firmware:-:*:*:*:*:*:*:*supported

Unknown vendorUnknown product

cpe:2.3:o:hikvision:ds-2cd2412f-i\(w\)_firmware:-:*:*:*:*:*:*:*supported

Unknown vendorUnknown product

cpe:2.3:o:hikvision:ds-2cd2432f-i\(w\)_firmware:-:*:*:*:*:*:*:*supported

Unknown vendorUnknown product

cpe:2.3:o:hikvision:ds-2cd2512f-i\(s\)_firmware:-:*:*:*:*:*:*:*supported

Unknown vendorUnknown product

cpe:2.3:o:hikvision:ds-2cd2532f-i\(s\)_firmware:-:*:*:*:*:*:*:*supported

Unknown vendorUnknown product

cpe:2.3:o:hikvision:ds-2cd2612f-i\(s\)_firmware:-:*:*:*:*:*:*:*supported

Unknown vendorUnknown product

cpe:2.3:o:hikvision:ds-2cd2632f-i\(s\)_firmware:-:*:*:*:*:*:*:*supported

Unknown vendorUnknown product

cpe:2.3:o:hikvision:ds-2cd2712f-i\(s\)_firmware:-:*:*:*:*:*:*:*supported

Unknown vendorUnknown product

cpe:2.3:o:hikvision:ds-2cd2732f-i\(s\)_firmware:-:*:*:*:*:*:*:*supported

Unknown vendorUnknown product

cpe:2.3:o:hikvision:ds-2cd2t32-i3_firmware:-:*:*:*:*:*:*:*supported

Unknown vendorUnknown product

cpe:2.3:o:hikvision:ds-2cd2t32-i5_firmware:-:*:*:*:*:*:*:*supported

Unknown vendorUnknown product

cpe:2.3:o:hikvision:ds-2cd2t32-i8_firmware:-:*:*:*:*:*:*:*supported

Unknown vendorUnknown product

cpe:2.3:o:hikvision:ds-2cd4012f-\(a\)_firmware:-:*:*:*:*:*:*:*supported

Unknown vendorUnknown product

cpe:2.3:o:hikvision:ds-2cd4012f-\(p\)_firmware:-:*:*:*:*:*:*:*supported

Unknown vendorUnknown product

cpe:2.3:o:hikvision:ds-2cd4012fwd-\(a\)_firmware:-:*:*:*:*:*:*:*supported

Unknown vendorUnknown product

cpe:2.3:o:hikvision:ds-2cd4012fwd-\(p\)_firmware:-:*:*:*:*:*:*:*supported

Unknown vendorUnknown product

cpe:2.3:o:hikvision:ds-2cd4012fwd-\(w\)_firmware:-:*:*:*:*:*:*:*supported

Unknown vendorUnknown product

cpe:2.3:o:hikvision:ds-2cd4012f-\(w\)_firmware:-:*:*:*:*:*:*:*supported

Unknown vendorUnknown product

cpe:2.3:o:hikvision:ds-2cd4024f-\(a\)_firmware:-:*:*:*:*:*:*:*supported

Unknown vendorUnknown product

cpe:2.3:o:hikvision:ds-2cd4024f-\(p\)_firmware:-:*:*:*:*:*:*:*supported

Unknown vendorUnknown product

cpe:2.3:o:hikvision:ds-2cd4024f-\(w\)_firmware:-:*:*:*:*:*:*:*supported

Unknown vendorUnknown product

cpe:2.3:o:hikvision:ds-2cd4032fwd-\(a\)_firmware:-:*:*:*:*:*:*:*supported

Unknown vendorUnknown product

cpe:2.3:o:hikvision:ds-2cd4032fwd-\(p\)_firmware:-:*:*:*:*:*:*:*supported

Unknown vendorUnknown product

cpe:2.3:o:hikvision:ds-2cd4032fwd-\(w\)_firmware:-:*:*:*:*:*:*:*supported

Unknown vendorUnknown product

cpe:2.3:o:hikvision:ds-2cd4112f-i\(z\)_firmware:-:*:*:*:*:*:*:*supported

Unknown vendorUnknown product

cpe:2.3:o:hikvision:ds-2cd4112fwd-i\(z\)_firmware:-:*:*:*:*:*:*:*supported

Unknown vendorUnknown product

cpe:2.3:o:hikvision:ds-2cd4124f-i\(z\)_firmware:-:*:*:*:*:*:*:*supported

Unknown vendorUnknown product

cpe:2.3:o:hikvision:ds-2cd4132fwd-i\(z\)_firmware:-:*:*:*:*:*:*:*supported

Unknown vendorUnknown product

cpe:2.3:o:hikvision:ds-2cd4212f-i\(h\)_firmware:-:*:*:*:*:*:*:*supported

Unknown vendorUnknown product

cpe:2.3:o:hikvision:ds-2cd4212f-i\(s\)_firmware:-:*:*:*:*:*:*:*supported

Unknown vendorUnknown product

cpe:2.3:o:hikvision:ds-2cd4212f-i\(z\)_firmware:-:*:*:*:*:*:*:*supported

Unknown vendorUnknown product

cpe:2.3:o:hikvision:ds-2cd4212fwd-i\(h\)_firmware:-:*:*:*:*:*:*:*supported

Unknown vendorUnknown product

cpe:2.3:o:hikvision:ds-2cd4212fwd-i\(s\)_firmware:-:*:*:*:*:*:*:*supported

Unknown vendorUnknown product

cpe:2.3:o:hikvision:ds-2cd4212fwd-i\(z\)_firmware:-:*:*:*:*:*:*:*supported

Unknown vendorUnknown product

cpe:2.3:o:hikvision:ds-2cd4224f-i\(h\)_firmware:-:*:*:*:*:*:*:*supported

Unknown vendorUnknown product

cpe:2.3:o:hikvision:ds-2cd4224f-i\(s\)_firmware:-:*:*:*:*:*:*:*supported

Unknown vendorUnknown product

cpe:2.3:o:hikvision:ds-2cd4224f-i\(z\)_firmware:-:*:*:*:*:*:*:*supported

Unknown vendorUnknown product

cpe:2.3:o:hikvision:ds-2cd4232fwd-i\(h\)_firmware:-:*:*:*:*:*:*:*supported

Unknown vendorUnknown product

cpe:2.3:o:hikvision:ds-2cd4232fwd-i\(s\)_firmware:-:*:*:*:*:*:*:*supported

Unknown vendorUnknown product

cpe:2.3:o:hikvision:ds-2cd4232fwd-i\(z\)_firmware:-:*:*:*:*:*:*:*supported

Unknown vendorUnknown product

cpe:2.3:o:hikvision:ds-2cd4312f-i\(h\)_firmware:-:*:*:*:*:*:*:*supported

Unknown vendorUnknown product

cpe:2.3:o:hikvision:ds-2cd4312f-i\(s\)_firmware:-:*:*:*:*:*:*:*supported

Unknown vendorUnknown product

cpe:2.3:o:hikvision:ds-2cd4312f-i\(z\)_firmware:-:*:*:*:*:*:*:*supported

Unknown vendorUnknown product

cpe:2.3:o:hikvision:ds-2cd4324f-i\(h\)_firmware:-:*:*:*:*:*:*:*supported

Unknown vendorUnknown product

cpe:2.3:o:hikvision:ds-2cd4324f-i\(s\)_firmware:-:*:*:*:*:*:*:*supported

Unknown vendorUnknown product

cpe:2.3:o:hikvision:ds-2cd4324f-i\(z\)_firmware:-:*:*:*:*:*:*:*supported

Unknown vendorUnknown product

cpe:2.3:o:hikvision:ds-2cd4332fwd-i\(h\)_firmware:-:*:*:*:*:*:*:*supported

Unknown vendorUnknown product

cpe:2.3:o:hikvision:ds-2cd4332fwd-i\(s\)_firmware:-:*:*:*:*:*:*:*supported

Unknown vendorUnknown product

cpe:2.3:o:hikvision:ds-2cd4332fwd-i\(z\)_firmware:-:*:*:*:*:*:*:*supported

Unknown vendorUnknown product

cpe:2.3:o:hikvision:ds-2cd63xx_series_firmware:-:*:*:*:*:*:*:*supported

Unknown vendorUnknown product

cpe:2.3:o:hikvision:ds-2cd6412fwd_firmware:-:*:*:*:*:*:*:*supported

Unknown vendorUnknown product

cpe:2.3:o:hikvision:ds-2dfx_series_firmware:-:*:*:*:*:*:*:*supported

Assessments

CVSS by origin

9.8

nvd@nist.govCVSS 3.1 · role PrimaryCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

7.5

nvd@nist.govCVSS 2.0 · role PrimaryAV:N/AC:L/Au:N/C:P/I:P/A:P

9.8

134c704f-9b21-4f2e-91b3-4a467353bcc0CVSS 3.1 · role SecondaryCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

9.8

CISA-ADPCVSS 3.1 · role unknownCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Limitations and unknowns

KEV membership is authoritative for the catalog, not proof of exposure in any environment.
EPSS is a dated model probability and not an individual-environment prediction.
Affected or fixed status applies only to the exact cited product and version scope; unresolved scope remains unknown.
NVD-carried upstream facts remain derivative and are not independent corroboration.
Only NVD metrics validated under the generation-bound calculator are Public Priority eligible; direct CVE record metrics remain display-only.
NVD CVSS source eligibility is closed: NVD-authored, exact record-source, or registered same-CVE container origin; unmapped sources remain display-only.
Factor D is unknown in Public Core because no accepted canonical mapping-obligation ledger is present.
Core replay supports the active and immediately prior generation; retrospective valid-at replay is deferred.