Threats / Hikvision / CVE-2017-7921
CVE-2017-7921
· EUVD no mirror located
· GCVE no mirror located
Verified 2026-06-22
Hikvision Multiple Products vulnerability
Multiple Hikvision products contain an improper authentication vulnerability (CWE-287) allowing privilege escalation and unauthorized access to sensitive information.
Verdict
Today item — known-exploited.
This vulnerability enables attackers to bypass authentication controls and escalate privileges on affected Hikvision systems. Active exploitation in the wild and high EPSS score indicate immediate risk to deployed devices.
01
Is it exploitable?
— the evidence, ranked above the scoreExploit available
Fully weaponized — public exploit code is cataloged for this vulnerability.We link the existence of the exploit; we do not host or redistribute payloads.
Reported exploitation
455 independent public reports of in-the-wild exploitation are cataloged.Distinct reporting sources (vendor, incident response, government); open them for the underlying claims.
Exploited in the wild
Listed in the CISA Known Exploited Vulnerabilities catalog (added 2026-03-05).
Probability (EPSS)
EPSS 0.99998 — modeled likelihood of exploitation activity.EPSS is a daily-changing model output — open the source for today's value.
Severity / affected
Affected: Hikvision, Multiple Products. Confirm exact fixed builds in the vendor advisory.
Weakness (CWE)
Mapped to CWE-287 Improper Authentication — weakness family: Authentication.CWE assignment from the public NVD record; the weakness class drives how the flaw is exploited.
02
Who’s exploiting it?
— attribution turns risk into urgencyAttribution not established
No confirmed (advisory-backed) threat-actor attribution is established for this record. Absence of a named actor is not absence of compromise — see Coverage & confidence.
03
Why it matters
— the attack path, told twice: adversary, then board1
Front door — unauthenticated access narrative 1
Attacker
I exploit the improper authentication mechanism to bypass access controls on the Hikvision device.
Business
Unauthorized access to security infrastructure compromises the integrity of surveillance and monitoring systems.
2
Keys to the kingdom — privilege/identity takeover narrative 2
Attacker
I escalate my privileges to gain administrative or system-level access on the compromised device.
Business
Attackers obtain full control over device functionality, configuration, and data retention policies.
3
Lateral reach — past segmentation narrative 3
Attacker
I extract sensitive information including credentials, recordings, or system configurations from the device.
Business
Exposure of surveillance data, authentication materials, and system details creates liability and operational risk.
04
What to do
— defensible action- Remediate per the vendor advisory — confirm the fixed build for your version and verify exposure.1
Say it to the boardA vulnerability with this evidence profile is a defensible budget line, not a backlog ticket — fund the change against the proof above.
05