HOMEVULNERABILITIESCVE-2020-26097
CRITICAL

CVE-2020-26097

CWE-798Published: November 18, 2020· Updated: Jun 17, 2026

9.8
CVSS v3.1

Official Description

The firmware of the PLANET Technology Corp NVR-915 and NVR-1615 before 2020-10-28 embeds default credentials for root access via telnet. By exposing telnet on the Internet, remote root access on the device is possible. NOTE: This vulnerability only affects products that are no longer supported by the maintainer

NVD Source

Technical Analysis

CVE-2020-26097 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

planet4 product(s)
nvr-915 firmwarenvr-915nvr-1615 firmwarenvr-1615
Source: NVD CPE · 4 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

ADVISORYhttps://www.sec-research.com/1604584604-hard-coded-credentials-in-netzwerk-videorekorder-planet-nvr-915.html
ADVISORYhttps://www.sec-research.com/1604584604-hard-coded-credentials-in-netzwerk-videorekorder-planet-nvr-915.html

All References (2)

→
https://www.sec-research.com/1604584604-hard-coded-credentials-in-netzwerk-videorekorder-planet-nvr-915.htmlExploit · Third Party Advisory
→
https://www.sec-research.com/1604584604-hard-coded-credentials-in-netzwerk-videorekorder-planet-nvr-915.htmlExploit · Third Party Advisory

Quick Facts

CVE IDCVE-2020-26097
CVSS Score9.8 / 10
SeverityCRITICAL
WeaknessCWE-798
CISA KEVNo
Affected1 vendor(s)
PublishedNov 18, 2020

Related CVEs (CWE-798)

CVE-2021-40422
10.0
CVE-2007-1063
10.0
CVE-2026-45631
10.0
CVE-2026-8982
10.0
CVE-2026-13768
10.0
CVE-2012-6428
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2020-26097 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWatch. CVE data is provided under the NVD usage policy.
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