CVE-2020-24113

Directory Traversal vulnerability in Contacts File Upload Interface in Yealink W60B version 77.83.0.85, allows attackers to gain sensitive information and cause a denial of service (DoS).

Published: 2023-08-22 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2020-24113 is rated Moderate Risk (54/100): CVSS Critical severity, with medium exploitation likelihood (EPSS 0.31%). Review affected assets and schedule remediation.

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-2020-24113

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 2025-11-21 1.42% 0.31% -1.11%
2 2025-11-18 0.31% 1.42% +1.11%
3 2025-03-30 — 0.31% —

Full EPSS history (8 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2020-24113

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
9.1 3.1 CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H 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:N)
No account or special rights needed—anonymous or random user is enough.
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:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.9 5.2 [email protected]

Weakness enumeration for CVE-2020-24113

Affected software / configurations for CVE-2020-24113

Vendor Product Version Raw CPE
yealink w60b_firmware 77.83.0.85 cpe:2.3:o:yealink:w60b_firmware:77.83.0.85:*:*:*:*:*:*:*

References for CVE-2020-24113

URL Tags
https://fuo.fi/CVE-2020-24113/ Third Party Advisory
cvelogic Threat Intelligence