CVE-2017-7921
CriticalExploitedPublic exploitAn 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…
Published May 5, 2017 · Updated Apr 22, 2026
Key Facts
Patch immediately- CVE-2017-7921 is a critical-severity vulnerability (CVSS 9.8 v3.1) affecting Ds-2cd2032-I Firmware (Hikvision), Ds-2cd2112-I Firmware (Hikvision), Ds-2cd2132-I Firmware (Hikvision) and 22 more products.
- It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Oct 16, 2023. Public exploit code is available.
- EPSS estimates a 100% probability of exploitation in the next 30 days.
- No fixed version is listed yet; check the vendor advisory for mitigations.
- Brandefense priority: patch immediately, because it is listed as exploited in the wild.
CVSS v3.1
9.8
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS (30-day exploit likelihood)
100%
Higher than 99.9% of all scored CVEs
Exploited in the wild
Yes
4 catalog listings
Public exploit code
Available
Proof-of-concept or weaponized module
Get the full CVE-2017-7921 brief as a PDF
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Description
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.
Known-Exploited Catalog Listings
| Catalog | Added | Remediation due | Ransomware use |
|---|---|---|---|
| CISA KEV | Mar 5, 2026 | Mar 26, 2026 | Not reported |
| Industry KEV feed | Nov 18, 2023 | Mar 26, 2026 | Not reported |
| CIRCL KEV | Oct 16, 2023 | Mar 26, 2026 | Not reported |
| ENISA EUVD | Mar 5, 2026 | n/a | Not reported |
Required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Affected Products
59 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| Ds-2cd2032-I FirmwareHikvision | See advisory | n/a |
| Ds-2cd2112-I FirmwareHikvision | See advisory | n/a |
| Ds-2cd2132-I FirmwareHikvision | See advisory | n/a |
| Ds-2cd2212-I5 FirmwareHikvision | See advisory | n/a |
| Ds-2cd2232-I5 FirmwareHikvision | See advisory | n/a |
Timeline
Publicly disclosed
May 5, 2017
Added to CIRCL KEV
Oct 16, 2023
Added to Industry KEV feed
Nov 18, 2023
Added to CISA KEV
Mar 5, 2026
Added to ENISA EUVD
Mar 5, 2026
Last updated
Apr 22, 2026
Weakness Type
- CWE-287 Improper Authentication
References
- advisoryhttps://ics-cert.us-cert.gov/advisories/ICSA-17-124-01
- advisoryhttps://www.hikvision.com/cn/support/CybersecurityCenter/SecurityNotices/20170314/
- advisoryhttps://www.hikvision.com/en/support/cybersecurity/security-advisory/security-notification--privilege-escalating-vulnerability-in-cer/
- advisoryhttps://www.hikvision.com/us-en/support/document-center/special-notices/privilege-escalating-vulnerability-in-certain-hikvision-ip-cameras/
- advisory98313
FAQ
Common Questions.
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…
Affected: Ds-2cd2032-I Firmware (Hikvision); Ds-2cd2112-I Firmware (Hikvision); Ds-2cd2132-I Firmware (Hikvision), among others. The full list is in the CVE brief.
It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Oct 16, 2023.
Yes. It was added on Mar 5, 2026 with a federal remediation due date of Mar 26, 2026.
Public exploit code is available.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.
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