Auth bypass in Sony Bravia Signage
CVE-2020-36923
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.
Vulnerability class: IDOR (Insecure Direct Object Reference)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.009 (59.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 60th percentile — 59.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.010 · newest: 0.009 · change: -0.000
Affected products
- Sony Bravia Signage
- Sony Electronics Inc. Bravia Digital Signage — versions <=1.7.8
Weakness classification (CWE)
References
- www.zeroscience.mk/en/vulnerabilities/ZSL-2020-5611.php (Exploit, Third Party Advisory, third-party-advisory)
- exchange.xforce.ibmcloud.com/vulnerabilities/192607 (Third Party Advisory, vdb-entry)
- cxsecurity.com/issue/WLB-2020120031 (Third Party Advisory, third-party-advisory)
- packetstormsecurity.com/files/160344 (Third Party Advisory, exploit)
- pro.sony/ue_US/products/display-software (Product, product)
- pro-bravia.sony.net/resources/software/bravia-signage/ (Product, product)
- pro-bravia.sony.net (Product, product)
- www.vulncheck.com/advisories/sony-bravia-digital-signage-client-side-protection… (Third Party Advisory, third-party-advisory)
- 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Third Party Advisory)
Frequently asked questions
- What is CVE-2020-36923?
- CVE-2020-36923 is a critical-severity vulnerability in Sony Bravia Signage, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 9.8/10. Published 2026-01-06.
- How severe is CVE-2020-36923?
- Critical severity. CVSS v3 base score is 9.8 out of 10.