CVE-2020-10181: Sumavision EMR Cross-Site Request Forgery (CSRF) Vulnerability

Patch now

CRITICAL 9.8EXPLOITEDREMOTEMITIGATE

CVE-2020-10181 is a critical-severity flaw (CVSS 9.8) affecting enhanced multimedia router firmware, reported as exploited in the wild. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

goform/formEMR30 in Sumavision Enhanced Multimedia Router (EMR) 3.0.4.27 allows creation of arbitrary users with elevated privileges (administrator) on a device, as demonstrated by a setString=new_user<*1*>administrator<*1*>123456 request.

Why this priority

Critical severity
EPSS top 3%: very likely to be exploited
Exploited in the wild (CISA KEV)
Public exploit reference
CISA SSVC: automatable with total technical impact
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	14.9% (top 3%)
CISA exploited list	Yes, fix due 2022-05-03
Weakness	CWE-352
Published	2020-03-11
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: sumavision

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2020-03-11 16:15 UTCPublished CVE record published
2021-11-03Exploited Added to the CISA Known Exploited Vulnerabilities list
2022-05-03Deadline CISA due date for US federal agencies to patch
2026-06-17 02:47 UTCUpdated Record last modified

sumavision enhanced multimedia router firmware MITIGATE

Affected: 3.0.4.27

Fixed in: no fixed release known

Safe to downgrade to: a release before 3.0.4.27

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

Exact fixes by distribution

A distro patch exists: prefer upgrading over downgrading.

Fedora 46 · feh · FIXED · 3.13.1-1.fc46 · FEDORA-2026-3c76a13a4f · source

sudo dnf upgrade --advisory=FEDORA-2026-3c76a13a4f

Fedora ELN · setroubleshoot · FIXED · 3.3.37-7.eln159 · FEDORA-2026-f81b122fe1 · source

sudo dnf upgrade --advisory=FEDORA-2026-f81b122fe1

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Write-up: www.youtube.com/watch?v=Ufcj4D9eA5o

Verify at the official source NVD · CVE Program · CISA KEV catalog · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2020-10181?

enhanced multimedia router firmware: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2020-10181 being exploited?

Yes. CVE-2020-10181 is on the CISA Known Exploited Vulnerabilities list, so treat it as patch-now.

What does CVE-2020-10181 affect?

CVE-2020-10181 affects enhanced multimedia router firmware. Severity is critical (CVSS 9.8). goform/formEMR30 in Sumavision Enhanced Multimedia Router (EMR) 3.0.4.27 allows creation of arbitrary users with elevated privileges (administrator) on a device, as demonstrated by a setString=new_user<*1*>administrator<*1*>123456 request.

How urgent is CVE-2020-10181?

Priority 96/100. Critical severity; EPSS top 3%: very likely to be exploited; Exploited in the wild (CISA KEV); Public exploit reference; CISA SSVC: automatable with total technical impact; Remotely exploitable, no login, no user action

References

← Back to latest CVEs