CVE-2024-20503 | Cisco Duo Epic for Hyperdrive Information Disclosure Vulnerability

A vulnerability in Cisco Duo Epic for Hyperdrive could allow an authenticated, local attacker to view sensitive information in cleartext on an affected system. This vulnerability is due to improper storage of an unencrypted registry key. A low-privileged attacker could exploit this vulnerability by viewing or querying the registry key on the affected system. A successful exploit could allow the attacker to view sensitive information in cleartext.

Published: 2024-09-04 Last update: 2026-06-17 Assigner: [email protected] Source: [email protected]
NVD Status：Analyzed，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2024-20503 is rated Low Risk (27.8/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.05%). 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-2024-20503

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 0.03% 0.05% +0.03%
2 2025-11-18 0.08% 0.03% -0.05%
3 2025-10-13 — 0.08% —

Full EPSS history (4 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2024-20503

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.5 3.1 MEDIUM
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
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:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:N)
Service keeps running; no real outage angle.
 1.8 3.6 [email protected]
5.5 3.1 MEDIUM
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
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:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:N)
Service keeps running; no real outage angle.
 1.8 3.6 [email protected]

Weakness enumeration for CVE-2024-20503

Affected software / configurations for CVE-2024-20503

Vendor Product Version Raw CPE
cisco duo_authentication_for_epic 1.0.0 cpe:2.3:a:cisco:duo_authentication_for_epic:1.0.0:*:*:*:*:*:*:*
cisco duo_authentication_for_epic 1.0.1 cpe:2.3:a:cisco:duo_authentication_for_epic:1.0.1:*:*:*:*:*:*:*
cisco duo_authentication_for_epic 1.1.9 cpe:2.3:a:cisco:duo_authentication_for_epic:1.1.9:*:*:*:*:*:*:*
cisco duo_authentication_for_epic 1.1.10 cpe:2.3:a:cisco:duo_authentication_for_epic:1.1.10:*:*:*:*:*:*:*
cisco duo_authentication_for_epic 1.1.13 cpe:2.3:a:cisco:duo_authentication_for_epic:1.1.13:*:*:*:*:*:*:*
cisco duo_authentication_for_epic 1.2.0.95 cpe:2.3:a:cisco:duo_authentication_for_epic:1.2.0.95:*:*:*:*:*:*:*

References for CVE-2024-20503

cvelogic Threat Intelligence