CVE-2020-36923

Sony Bravia Signage broken access control

9.8 CRITICALPublic exploitEPSS 0.97%

Published6 Jan 2026

Description

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.

CVSS 3.1 breakdown

Attack vectorNetwork

Attack complexityLow

Privileges requiredNone

User interactionNone

ScopeUnchanged

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

Sony Bravia Signage≤ 1.7.8

Remediation

No fixed version is recorded in the NVD data. Check the vendor advisory for the latest guidance.

References

https://cxsecurity.com/issue/WLB-2020120031Third Party Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/192607Third Party Advisory
https://packetstormsecurity.com/files/160344Third Party Advisory
https://pro-bravia.sony.netProduct
https://pro-bravia.sony.net/resources/software/bravia-signage/Product
https://pro.sony/ue_US/products/display-softwareProduct
https://www.vulncheck.com/advisories/sony-bravia-digital-signage-client-side-protection-bypass-via-idorThird Party Advisory
https://www.zeroscience.mk/codes/sonybravia_idor.txtThird Party Advisory
https://www.zeroscience.mk/en/vulnerabilities/ZSL-2020-5611.phpExploitThird Party Advisory

Related CVEs

Recent high-severity vulnerabilities sharing a weakness type.

Frequently asked

Is CVE-2020-36923 being actively exploited?

CVE-2020-36923 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 0.97%.

How severe is CVE-2020-36923?

CVE-2020-36923 has a CVSS 3.1 base score of 9.8, rated critical. EPSS estimates a 0.97% probability of exploitation.

Which products are affected by CVE-2020-36923?

Affected products include Sony Bravia Signage.

How do I fix CVE-2020-36923?

Apply the vendor's patch or advisory guidance, then verify no affected versions remain across your devices.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2020-36923 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.