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CVE-2017-6884

A command injection vulnerability was discovered on the Zyxel EMG2926 home router with firmware V1.00(AAQT.4)b8. The vulnerability is located in the diagnostic tools, specifically the nslookup function. A malicious user may exploit numerous vectors to execute arbitrary commands o…

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A command injection vulnerability was discovered on the Zyxel EMG2926 home router with firmware V1.00(AAQT.4)b8. The vulnerability is located in the diagnostic tools, specifically the nslookup function. A malicious user may exploit numerous vectors to execute arbitrary commands on the router, such as the ping_ip parameter to the expert/maintenance/diagnostic/nslookup URI.
CVSS 8.8 (HIGH) KEV: KNOWN CATALOG

Attention and evidence

HYPE SCORE
0.0/10
REALITY · THREAT PRIORITY
8.5/10
General review priority; not probability

Evidence confidence: Exploitation recorded

Why this priority?
  • Recorded exploitation baseline: +7.00
  • Technical severity: CVSS 8.8: +1.32
  • Fresh EPSS: 32.98%: +0.16

General review priority, not probability, victim count or asset-specific risk. A range covers missing CVSS/EPSS inputs within the current evidence state.

Sources: 6 documents and public datasets.

Hype components

Headline sample (25%)
0/100
Press, 30 days (60%)
0/100
Grounded branding (15%)
0/100
HYPE TOTAL0/100

Sources and documents

Healthcare IT News
Press · 25 Feb 2026, 08:00 · Zyxel announces RCE patches for numerous network devices - Healthcare IT News
GreyNoise
Press · 02 Feb 2026, 08:00 · The Noise in the Silence: Unmasking CISA's Hidden KEV Ransomware Updates - GreyNoise
SecurityWeek
Press · 19 Sep 2023, 07:00 · CISA Says Owl Labs Vulnerabilities Requiring Close Physical Range Exploited in Attacks - SecurityWeek
Bitdefender
Press · 07 Jan 2020, 08:00 · Hold My Beer Mirai – Spinoff Named ‘LiquorBot’ Incorporates Cryptomining - Bitdefender
Unit 42
Press · 18 Mar 2019, 07:00 · New Mirai Variant Targets Enterprise Wireless Presentation & Display Systems - Unit 42
See all 6 source documents
Unit 42
Press · 09 Sep 2018, 07:00 · Multi-exploit IoT/Linux Botnets Mirai and Gafgyt Target Apache Struts, SonicWall - Unit 42

Score evolution

● Hype   ● Reality

Earlier evidence-support scores are retained in history; this chart shows only the current priority definition.

First record: hype 0.0 · reality 8.5 (2026-11-02 15:12). The curve appears once the score changes.

Public exploit evidence

1

Public exploit entries / repo candidates

Source entries and unverified repository candidates are counted separately.

Public exploit evidence
Evidence context and dated references

Reality is general threat/review priority, combining observed exploitation, CVSS severity and fresh EPSS. Evidence confidence is separate. This is not calibrated risk, a victim count or an asset-specific assessment. A range reflects missing numeric inputs.

Evidence in context

Confidence in exploitation evidence
Exploitation recorded
Priority basis
Recorded exploitation; CVSS 8.8; EPSS 33.0%
Attention, last 30 days
0 distinct story titles; 0 press documents; 0 publisher domains.
Technical potential
network access, low privileges, no user interaction.
Observed activity
Exploitation recorded in CISA KEV.
Known scale
Not quantified.
Evidence confidence basis
Trusted exploitation confirmation

Score evaluated: 2026-11-05 13:57:53.595498+00:00 · EPSS snapshot: 2026-11-05T12:03:04Z

Source event timeline
Published
06 Apr 2017, 17:00
First press mention
09 Sep 2018, 07:00
Added to the CISA KEV catalog
18 Sep 2023, 00:00
Latest press mention
25 Feb 2026, 08:00
Score calculated
05 Nov 2026, 13:57
PoCs on GitHub
1 repositories