CVE-2017-7927Dh-Hcvr4xxx Firmware Hardcoded Credentials
A Use of Password Hash Instead of Password for Authentication issue was discovered in Dahua DH-IPC-HDBW23A0RN-ZS, DH-IPC-HDBW13A0SN, DH-IPC-HDW1XXX, DH-IPC-HDW2XXX, DH-IPC-HDW4XXX, DH-IPC-HFW1XXX, DH-IPC-HFW2XXX, DH-IPC-HFW4XXX, DH-SD6CXX, DH-NVR1XXX, DH-HCVR4XXX, DH-HCVR5XXX,…
Published May 5, 2017 · Updated May 12, 2026
Key Facts
Patch immediately- CVE-2017-7927 is a high-severity vulnerability (CVSS 7.3 v3) affecting Dh-Hcvr4xxx Firmware (Dahuasecurity), Dh-Hcvr5xxx Firmware (Dahuasecurity), Dhi-Hcvr51a04he-S3 Firmware (Dahuasecurity) and 13 more products.
- It is exploited in the wild, listed in CIRCL KEV, Industry KEV feed since Oct 14, 2023. No public exploit code is known.
- EPSS estimates a 37% 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.
Scores
CVSS v3
7.3
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
EPSS (30-day exploit likelihood)
37%
Higher than 98.5% of all scored CVEs
Exploit maturity
Exploited (KEV)
ATLAS score
51/100
Publication score, see How it works
Exploitation Verdict
KEV listed
Oct 14, 2023
2353 days after publication
Federal due date
None
No federal due date
Ransomware use
Not reported
Attributed actors
None named
Exploit & Defence Guidance
Exploit maturity
Exploited (KEV)
Public exploit code
0
Proof-of-concept links
In-the-wild evidence
10
Reports of active use
Advisories And Exploit References
Description
A Use of Password Hash Instead of Password for Authentication issue was discovered in Dahua DH-IPC-HDBW23A0RN-ZS, DH-IPC-HDBW13A0SN, DH-IPC-HDW1XXX, DH-IPC-HDW2XXX, DH-IPC-HDW4XXX, DH-IPC-HFW1XXX, DH-IPC-HFW2XXX, DH-IPC-HFW4XXX, DH-SD6CXX, DH-NVR1XXX, DH-HCVR4XXX, DH-HCVR5XXX, DHI-HCVR51A04HE-S3, DHI-HCVR51A08HE-S3, and DHI-HCVR58A32S-S2 devices.
The use of password hash instead of password for authentication vulnerability was identified, which could allow a malicious user to bypass authentication without obtaining the actual password.
Known-Exploited Catalog Listings
| Catalog | Added | Remediation due | Ransomware use |
|---|---|---|---|
| CIRCL KEV | Oct 14, 2023 | n/a | Not reported |
| Industry KEV feed | Oct 14, 2023 | n/a | Not reported |
Affected Products
16 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| Dh-Hcvr4xxx FirmwareDahuasecurity | See advisory | n/a |
| Dh-Hcvr5xxx FirmwareDahuasecurity | See advisory | n/a |
| Dhi-Hcvr51a04he-S3 FirmwareDahuasecurity | See advisory | n/a |
| Dhi-Hcvr51a08he-S3 FirmwareDahuasecurity | See advisory | n/a |
| Dhi-Hcvr58a32s-S2 FirmwareDahuasecurity | See advisory | n/a |
Timeline
Publicly disclosed
May 5, 2017
Added to CIRCL KEV
Oct 14, 2023
Added to Industry KEV feed
Oct 14, 2023
Last updated
May 12, 2026
Weakness Type
- CWE-798 Use of Hard-coded Credentials
- CWE-836 Use of Password Hash Instead of Password for Authentication
References
- advisoryics-cert.us-cert.gov · ICSA-17-124-02
- advisory98312
- patchus.dahuasecurity.com · Security-Bulletin_030617.php
- exploitVulnCheck exploitation report
- exploitVulnCheck exploitation report
FAQ
Common Questions.
A Use of Password Hash Instead of Password for Authentication issue was discovered in Dahua DH-IPC-HDBW23A0RN-ZS, DH-IPC-HDBW13A0SN, DH-IPC-HDW1XXX, DH-IPC-HDW2XXX, DH-IPC-HDW4XXX, DH-IPC-HFW1XXX, DH-IPC-HFW2XXX, DH-IPC-HFW4XXX, DH-SD6CXX, DH-NVR1XXX, DH-HCVR4XXX, DH-HCVR5XXX, DHI-HCVR51A04HE-S3, DHI-HCVR51A08HE-S3, a…
Affected: Dh-Hcvr4xxx Firmware (Dahuasecurity); Dh-Hcvr5xxx Firmware (Dahuasecurity); Dhi-Hcvr51a04he-S3 Firmware (Dahuasecurity), among others. The full list is in the CVE brief.
It is exploited in the wild, listed in CIRCL KEV, Industry KEV feed since Oct 14, 2023.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
No public exploit code is known.
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.
Is CVE-2017-7927 On Your Attack Surface?
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