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CVE-2017-7921· NVD / CVE Program· CNA icscert

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

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.

CriticalCVSS 9.8 · v3.1KEVWeaponized No fix recorded
Published
May 5, 2017
Updated
Jun 16, 2026
EPSS
100.0% · 100th percentile
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Action score

99

Now

Patch today or shut off access.

CVSS
39 / 40 · 9.8 / 10
CISA KEV
30 / 30 · Listed
EPSS
30 / 30 · 100.0%

CISA SSVC decision

Exploitation
active
Automatable
yes
Technical impact
total

Vulnrichment: CISA's decision-tree inputs.

Actively exploited in the wild

CISA added this to its Known Exploited Vulnerabilities catalog on Mar 5, 2026. That signals real attacks, not theory.

Remediation deadline for government agencies: Mar 26, 2026.

Affected systems

VendorProduct
hikvisionds-2cd2032-i firmware
hikvisionds-2cd2112-i firmware
hikvisionds-2cd2132-i firmware
hikvisionds-2cd2212-i5 firmware
hikvisionds-2cd2232-i5 firmware
hikvisionds-2cd2312-i firmware
hikvisionds-2cd2332-i firmware
hikvisionds-2cd2412f-i\(w\) firmware
hikvisionds-2cd2432f-i\(w\) firmware
hikvisionds-2cd2512f-i\(s\) firmware
hikvisionds-2cd2532f-i\(s\) firmware
hikvisionds-2cd2612f-i\(s\) firmware

and 104 more

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Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • hikvision ds-2cd2032-i firmwareall versions
  • hikvision ds-2cd2112-i firmwareall versions
  • hikvision ds-2cd2132-i firmwareall versions
  • hikvision ds-2cd2212-i5 firmwareall versions
  • hikvision ds-2cd2232-i5 firmwareall versions
  • hikvision ds-2cd2312-i firmwareall versions
  • hikvision ds-2cd2332-i firmwareall versions
  • hikvision ds-2cd2412f-i(w) firmwareall versions
  • hikvision ds-2cd2432f-i(w) firmwareall versions
  • hikvision ds-2cd2512f-i(s) firmwareall versions
  • hikvision ds-2cd2532f-i(s) firmwareall versions
  • hikvision ds-2cd2612f-i(s) firmwareall versions
  • hikvision ds-2cd2632f-i(s) firmwareall versions
  • hikvision ds-2cd2712f-i(s) firmwareall versions
  • hikvision ds-2cd2732f-i(s) firmwareall versions
  • hikvision ds-2cd2t32-i3 firmwareall versions
  • hikvision ds-2cd2t32-i5 firmwareall versions
  • hikvision ds-2cd2t32-i8 firmwareall versions
  • hikvision ds-2cd4012f-(a) firmwareall versions
  • hikvision ds-2cd4012f-(p) firmwareall versions

Versions reported by the vendor

Affected version ranges reported by the assigning authority (icscert). Independent of NVD's CPE analysis and usually ahead of it.

  • n/a Hikvision Cameras

    • Hikvision Camerasaffected

Same product

hikvision: all records

Other highest-scoring records for the same primary product.

  • CVE-2017-7923A Password in Configuration File issue was discovered in Hikvision DS-2CD2xx2F-I Series V5.2.0 build 140721 to V5.4.0 build 160530, DS-2CD2x
    36Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

No fix version is recorded for this entry. Check the references for vendor advisories.

Exploit status

Weaponized

A ready exploit tool or active in-the-wild use is known for this vulnerability. This should be your top priority.

Evidence

  • Metasploit module ×2
  • Nuclei detection template ×1
  • Proof-of-concept repository on GitHub ×24

Noroxi does not host or link to exploit code. Metasploit module names and Nuclei template ids are shown (names, not code); Exploit-DB entries and PoC repositories are given as counts only.

Public exploit evidence
SourceKindDate
Metasploit moduleauxiliary/admin/http/hikvision_unauth_pwd_reset_cve_2017_7921Hikvision IP Camera Unauthenticated Password Change Via Improper Authentication Logicauxiliary2017-09-23
Metasploit moduleauxiliary/gather/hikvision_info_disclosure_cve_2017_7921Unauthenticated information disclosure such as configuration, credentials and camera snapshots of a vulnerable Hikvision IP Cameraauxiliary2017-09-23
Nuclei detection templateNuclei template CVE-2017-7921 —
Proof-of-concept repository on GitHubstars:1022020-04-27
Proof-of-concept repository on GitHubstars:352020-11-12
Proof-of-concept repository on GitHubstars:132020-11-13
Proof-of-concept repository on GitHubstars:1172021-01-29
Proof-of-concept repository on GitHubstars:02022-06-15
Proof-of-concept repository on GitHubstars:62022-07-20
Proof-of-concept repository on GitHubstars:02022-10-19
Proof-of-concept repository on GitHubstars:22023-07-04
Proof-of-concept repository on GitHubstars:512023-07-24

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

  1. Published
  2. Metasploit+140 d
  3. First PoC+1087 d
  4. CISA KEV+3225 d
  5. TodaySep 30, 2026+3435 d
EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • No account or password is required.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
high · data can be read
Integrity
high · data or configuration can be modified
Availability
high · the service can be disrupted
Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
High
Availability impact
High

Weakness class (CWE)

CWE-287 · Improper Authentication

CVSS vector

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

nvd-primary

Root cause

Authentication is added route by route instead of being enforced in one place. When a route added later bypasses the shared middleware, the session check never runs for it.

The bug in code

The whole CWE-287 class

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

Vulnerable

ts
app.use("/admin", requireSession, adminRouter);
// Route added later skips the middlewareapp.post("/admin-api/config", updateConfig);

Fixed

ts
const admin = express.Router();admin.use(requireSession, requireRole("admin"));
admin.post("/config", updateConfig);app.use("/admin", admin);

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

Noroxi analysis

No Noroxi analysis for this record yet

We don't hand-write analysis for all 385,000+ vulnerabilities; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.

We use this product, ask for help

Change log

No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.

References

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records