Page generated: 08 Nov 2026, 12:20 UTC
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CVE-2020-15415

On DrayTek Vigor3900, Vigor2960, and Vigor300B devices before 1.5.1, cgi-bin/mainfunction.cgi/cvmcfgupload allows remote command execution via shell metacharacters in a filename when the text/x-python-script content type is used, a different issue than CVE-2020-14472.

CVSS 9.8 (CRITICAL) KEV: KNOWN CATALOG

Attention and evidence

HYPE SCORE
0.0/10
REALITY · THREAT PRIORITY
8.9/10
General review priority; not probability

Evidence confidence: Exploitation recorded

Why this priority?
  • Recorded exploitation baseline: +7.00
  • Technical severity: CVSS 9.8: +1.47
  • Fresh EPSS: 84.48%: +0.42

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

Sources: 5 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

ISPreview UK
Press · 03 Oct 2024, 07:00 · Serious Security Vulnerabilities Exposed in 704,525 DrayTek Routers UPDATE - ISPreview UK
www.csoonline.com
Press · 17 Feb 2023, 08:00 · New Mirai botnet variant V3G4 targets Linux servers, IoT devices - www.csoonline.com
BleepingComputer
Press · 16 Feb 2023, 08:00 · New Mirai malware variant infects Linux devices to build DDoS botnet - BleepingComputer
Unit 42
Press · 15 Feb 2023, 08:00 · Mirai Variant V3G4 Targets IoT Devices - Unit 42
Unit 42
Press · 22 Jan 2021, 08:00 · Network Attack Trends: Internet of Threats (August-October 2020) - 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 8.9 (2026-11-02 15:12). The curve appears once the score changes.

Public exploit evidence

0

Public exploit entries / repo candidates

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 9.8; EPSS 84.5%
Attention, last 30 days
0 distinct story titles; 0 press documents; 0 publisher domains.
Technical potential
network access, no prior 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 13:58:14.320098+00:00 · EPSS snapshot: 2026-11-05T12:03:04Z

Source event timeline
Published
30 Jun 2020, 13:37
First press mention
22 Jan 2021, 08:00
Added to the CISA KEV catalog
30 Sep 2024, 00:00
Latest press mention
03 Oct 2024, 07:00
Score calculated
05 Nov 2026, 13:58