CVE-2017-7921
Confirmed PUBLISHEDAn 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...
1 day faster than CISA KEV
Recommended Action
Prioritize remediation. Validate affected assets and apply vendor fixes on an accelerated timeline.
At a Glance
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.
- CVE Published
- May 06, 2017
- Exploitation Reported
- Jun 01, 2026
- CVSS
- 9.8 Critical
- EPSS
- 100.0%
Affected Versions
| Vendor | Product | Version | Status |
|---|---|---|---|
| n/a |
Hikvision Cameras
|
Hikvision Cameras |
Affected |
CVE References
- 98313 securityfocus.com · VDB Entry http://www.securityfocus.com/bid/98313
- ics-cert.us-cert.gov/advisories/ICSA-17-124-01 ics-cert.us-cert.gov · CVE Record https://ics-cert.us-cert.gov/advisories/ICSA-17-124-01
- ghostbin.com/paste/q2vq2 ghostbin.com · CVE Record https://ghostbin.com/paste/q2vq2
- hikvision.com/us/about_10805.html hikvision.com · CVE Record http://www.hikvision.com/us/about_10805.html
Recommended Actions
- Prioritize remediation. Validate affected assets and apply vendor fixes on an accelerated timeline.
- Check enrichment artifacts for scanner coverage and available PoCs before rolling remediation validation.
- Use the Pro API to automate enrichment, telemetry, and workflow delivery for VM, SOC, and CTI pipelines.
Known Exploited Vulnerability Sources
Catalogues that list this CVE as a known exploited vulnerability.
Per-source evidence links for KEV attestations are available through the KEVIntel Pro API.
Learn about Pro API access| Source | Added |
|---|---|
| CVE First | 2026-06-01 11:37 UTC |
| CISA | 2026-06-02 14:02 UTC |
| The Shadowserver | 2026-06-28 10:15 UTC |
Scanner Artifacts
Nuclei and Metasploit references linked to this CVE.
| Scanner | Reference | Detected |
|---|---|---|
| Nuclei | https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2017/CVE-2017-7921.yaml | Apr 25, 2025 |
Virtual Patch
Compensating WAF rules to help reduce exposure to this CVE. Rule content and deployable vendor exports are available with KEVIntel Enterprise.
KEVIntel does not currently have a virtual patch for this CVE. When available, KEVIntel virtual patches ship as deployable ModSecurity, Cloudflare, and AWS WAF rules.
Enterprise feature. Virtual patch rule content and deployable vendor exports (ModSecurity, Cloudflare, AWS WAF) are available to KEVIntel Enterprise users.
CVSS Scores
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
AV:N/AC:L/Au:N/C:P/I:P/A:P
Exploitation Status
Exploited in the wild
Recorded 2026-06-01 13:30:35 UTC · CISA
Proof of concept available
Recorded 2020-04-27 11:49:40 UTC · GitHub
Weaknesses (CWE)
-
Improper Authentication
Scanner Integrations
| Scanner | Reference | Detected |
|---|---|---|
| Nuclei | https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2017/CVE-2017-7921.yaml | Apr 25, 2025 |
Potential Proof of Concepts
These PoCs are unverified and could contain malware. Use at your own risk.
github · Created 2024-07-02 11:47:35 UTC · 5 stars
Test For CVE-2017–7921;
github · Created 2023-11-20 18:44:13 UTC · 0 stars
github · Created 2023-08-27 17:29:48 UTC · 1 stars
CVE-2017-7921 exploit. Allows admin password retrieval and automatic snapshot download.
github · Created 2023-07-24 14:48:38 UTC · 21 stars
A PoC exploit for CVE-2017-7921 - Hikvision Camera Series Improper Authentication Vulnerability.
github · Created 2022-10-19 13:48:49 UTC · 0 stars
github · Created 2022-07-20 07:07:07 UTC · 6 stars
CVE-2017-7921-EXP Hikvision camera
github · Created 2022-06-15 03:49:05 UTC · 0 stars
github · Created 2021-01-29 16:08:35 UTC · 102 stars
This python file will decrypt the configurationFile used by hikvision cameras vulnerable to CVE-2017-7921.
github · Created 2020-04-27 11:49:40 UTC · 90 stars
Hikvision camera CVE-2017-7921-EXP
nuclei · Created Unknown
Timeline
Key exploitation, disclosure, scanner coverage, and KEV attestation events for this CVE.
-
10:15 UTC 20 days ago10:15 UTC · 20 days ago
KEV confirmed by The Shadowserver
Exploitation attested by an external source
-
14:02 UTC about 2 months ago14:02 UTC · about 2 months ago
Added to CISA KEV
Listed in the CISA Known Exploited Vulnerabilities catalog
-
11:37 UTC about 2 months ago11:37 UTC · about 2 months ago
Added to KEVIntel KEV Feed
High-confidence, third-party attested exploitation
-
00:00 UTC about 1 year ago00:00 UTC · about 1 year ago
Nuclei template available
Scanner coverage available
-
11:49 UTC about 6 years ago11:49 UTC · about 6 years ago
Public PoC available
Public proof-of-concept code published
-
00:00 UTC about 9 years ago00:00 UTC · about 9 years ago
CVE published
Vulnerability disclosed publicly
-
00:00 UTC over 9 years ago00:00 UTC · over 9 years ago
CVE ID reserved
Identifier reserved by the CNA
Automate This Intelligence with the Pro API
Confidence scoring, exploit status, sensor telemetry, PoCs, scanner integrations, mentions, and tags are available programmatically for VM, SOC, and CTI workflows.
Pro API Example
GET /api/v2/pro/kevs/CVE-2017-7921
{
"cve_id": "CVE-2017-7921",
"title": "An Improper Authentication issue was discovered in Hikvision DS-2CD2xx2F-I Se...",
"affected_vendor": "Hikvision",
"affected_product": "DS-2CD2xx2F-I Series, DS-2CD2xx0F-I Series, DS-2CD2xx2FWD Series, DS-2CD4x2xFWD Series, DS-2CD4xx5 Series, DS-2DFx Series, DS-2CD63xx Series",
"affected_versions": [
{ "vendor": "...", "product": "...", "status": "affected", "display_label": "..." }
],
"confidence": "Confirmed",
"cvss_score": 9.8,
"epss_score": 0.99998,
"exploit_status": {
"exploited_in_the_wild": true,
"active_exploitation_observed": false
},
"sensor_telemetry": { "...": "Pro API fields" },
"proof_of_concepts": [ "..." ],
"scanner_integrations": [ "..." ]
}