CVE-2020-36923: Sony BRAVIA Digital Signage 1.7.8 contains an insecure direct object reference vulnerability that allows attac

Q: How do I fix CVE-2020-36923?

bravia signage: upgrade to newer than 1.7.8. Exact commands for each OS are on this page.

Q: Is CVE-2020-36923 being exploited?

CVE-2020-36923 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2020-36923 affect?

CVE-2020-36923 affects bravia signage. Severity is critical (CVSS 9.8). Sony BRAVIA Digital Signage 1.7.8 contains an insecure direct object reference vulnerability that allows attackers to bypass authorization controls. Attackers can access hidden system resources like '/#/content-creation' by manipulating cli

Q: How urgent is CVE-2020-36923?

Priority 60/100. Critical severity; Public exploit reference; Remotely exploitable, no login, no user action

This week

CRITICAL 9.8REMOTEUPGRADE

CVE-2020-36923 is a critical-severity flaw (CVSS 9.8) affecting bravia signage. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Sony BRAVIA Digital Signage 1.7.8 contains an insecure direct object reference vulnerability that allows attackers to bypass authorization controls. Attackers can access hidden system resources like '/#/content-creation' by manipulating client-side access restrictions.

Why this priority

Critical severity
Public exploit reference
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	1.0% (top 38%)
CISA exploited list	No
Weakness	CWE-639
Published	2026-01-06
Last modified	2026-06-17

Publisher (CNA): VulnCheck · Vendor: sony

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

Am I affected?

Timeline

2026-01-06 16:15 UTCPublished CVE record published
2026-06-17 03:16 UTCUpdated Record last modified

sony bravia signage UPGRADE

Affected: <= 1.7.8

Fixed in: newer than 1.7.8

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy bravia-signage || rpm -q bravia-signage || bravia-signage --version

2. UPGRADE to newer than 1.7.8 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade bravia-signage

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade bravia-signage

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Exact fixes by distribution

Fedora ELN · fwupd-efi · FIXED · 1.9-3.eln159 · FEDORA-2026-44fd42db42 · source

sudo dnf upgrade --advisory=FEDORA-2026-44fd42db42

Fedora 46 · crest · FIXED · 3.0.2-1.fc46 · FEDORA-2026-b49adefa8f · source

sudo dnf upgrade --advisory=FEDORA-2026-b49adefa8f

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.zeroscience.mk/en/vulnerabilities/ZSL-2020-5611.php

Verify at the official source NVD · CVE Program · 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-2020-36923?

bravia signage: upgrade to newer than 1.7.8. Exact commands for each OS are on this page.

Is CVE-2020-36923 being exploited?

CVE-2020-36923 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2020-36923 affect?

CVE-2020-36923 affects bravia signage. Severity is critical (CVSS 9.8). Sony BRAVIA Digital Signage 1.7.8 contains an insecure direct object reference vulnerability that allows attackers to bypass authorization controls. Attackers can access hidden system resources like '/#/content-creation' by manipulating cli

How urgent is CVE-2020-36923?

Priority 60/100. Critical severity; Public exploit reference; Remotely exploitable, no login, no user action

Related CVEs

CVE-2020-36924 MEDIUM 6.1 UPGRADE Sony BRAVIA Digital Signage 1.7.8 contains a remote file inclusion vulnerability that allows attackers to inje
CVE-2020-36922 HIGH 7.5 UPGRADE Sony BRAVIA Digital Signage 1.7.8 contains an information disclosure vulnerability that allows unauthenticated

References

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