CVE-2020-27940

This issue was addressed with improved file handling. This issue is fixed in Apple TV app for Fire OS 6.1.0.6A142:7.1.0. An attacker with file system access may modify scripts used by the app.

Published: 2021-09-08 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]

Conclusion & alert: CVE-2020-27940 is rated Low Risk (33.2/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.23%). Mandatory action: Monitor for updates and reassess as exploit intelligence or EPSS changes.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2020-27940

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2025-04-16 0.34% 0.23% -0.11%
2 2025-03-30 0.40% 0.34% -0.07%
3 2025-03-29 0.40%

Full EPSS history (10 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2020-27940

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
4.3 3.1 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:L)
Attackers could change some data, but it’s limited—not everything goes.
Availability (A:N)
Service keeps running; no real outage angle.
2.8 1.4 [email protected]
4.0 2.0 MEDIUM
AV:N/AC:L/Au:S/C:N/I:P/A:N Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:S)
A single authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:N)
No availability impact.
8.0 2.9 [email protected]

Weakness enumeration for CVE-2020-27940

Affected software / configurations for CVE-2020-27940

Vendor Product Version Raw CPE
apple apple_tv < 5.1 cpe:2.3:o:apple:apple_tv:*:*:*:*:*:fire_os:*:*

References for CVE-2020-27940

URL Tags
https://support.apple.com/en-us/HT212197 Release Notes Vendor Advisory
cvelogic Threat Intelligence