CVE-2020-26074 | Cisco SD-WAN vManage Privilege Escalation Vulnerability

A vulnerability in system file transfer functions of Cisco SD-WAN vManage Software could allow an authenticated, local attacker to gain escalated privileges on the underlying operating system. The vulnerability is due to improper validation of path input to the system file transfer functions. An attacker could exploit this vulnerability by sending requests that contain specially crafted path variables to the vulnerable system. A successful exploit could allow the attacker to overwrite arbitrary files, allowing the attacker to modify the system in such a way that could allow the attacker to gain escalated privileges.Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.

Published: 2024-11-18 Last update: 2025-08-04 Assigner: [email protected] Source: [email protected]

Conclusion & alert: CVE-2020-26074 is rated Low Risk (36.6/100): CVSS High severity, with low exploitation likelihood (EPSS 0.05%). 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-2020-26074

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 2025-09-14 0.03% 0.05% +0.02%
2 2025-03-30 0.07% 0.03% -0.03%
3 2025-03-29 0.07%

Full EPSS history (4 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2020-26074

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.8 3.1 HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H 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:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
1.8 5.9 [email protected]

Weakness enumeration for CVE-2020-26074

Affected software / configurations for CVE-2020-26074

Vendor Product Version Raw CPE
cisco catalyst_sd-wan_manager 17.2.4 cpe:2.3:a:cisco:catalyst_sd-wan_manager:17.2.4:*:*:*:*:*:*:*
cisco catalyst_sd-wan_manager 17.2.5 cpe:2.3:a:cisco:catalyst_sd-wan_manager:17.2.5:*:*:*:*:*:*:*
cisco catalyst_sd-wan_manager 17.2.6 cpe:2.3:a:cisco:catalyst_sd-wan_manager:17.2.6:*:*:*:*:*:*:*
cisco catalyst_sd-wan_manager 17.2.7 cpe:2.3:a:cisco:catalyst_sd-wan_manager:17.2.7:*:*:*:*:*:*:*
cisco catalyst_sd-wan_manager 17.2.8 cpe:2.3:a:cisco:catalyst_sd-wan_manager:17.2.8:*:*:*:*:*:*:*
cisco catalyst_sd-wan_manager 17.2.9 cpe:2.3:a:cisco:catalyst_sd-wan_manager:17.2.9:*:*:*:*:*:*:*
cisco catalyst_sd-wan_manager 17.2.10 cpe:2.3:a:cisco:catalyst_sd-wan_manager:17.2.10:*:*:*:*:*:*:*
cisco catalyst_sd-wan_manager 18.2.0 cpe:2.3:a:cisco:catalyst_sd-wan_manager:18.2.0:*:*:*:*:*:*:*
cisco catalyst_sd-wan_manager 18.3.0 cpe:2.3:a:cisco:catalyst_sd-wan_manager:18.3.0:*:*:*:*:*:*:*
cisco catalyst_sd-wan_manager 18.3.1 cpe:2.3:a:cisco:catalyst_sd-wan_manager:18.3.1:*:*:*:*:*:*:*
cisco catalyst_sd-wan_manager 18.3.1.1 cpe:2.3:a:cisco:catalyst_sd-wan_manager:18.3.1.1:*:*:*:*:*:*:*
cisco catalyst_sd-wan_manager 18.3.3 cpe:2.3:a:cisco:catalyst_sd-wan_manager:18.3.3:*:*:*:*:*:*:*
cisco catalyst_sd-wan_manager 18.3.3.1 cpe:2.3:a:cisco:catalyst_sd-wan_manager:18.3.3.1:*:*:*:*:*:*:*
cisco catalyst_sd-wan_manager 18.3.4 cpe:2.3:a:cisco:catalyst_sd-wan_manager:18.3.4:*:*:*:*:*:*:*
cisco catalyst_sd-wan_manager 18.3.5 cpe:2.3:a:cisco:catalyst_sd-wan_manager:18.3.5:*:*:*:*:*:*:*
cisco catalyst_sd-wan_manager 18.3.6 cpe:2.3:a:cisco:catalyst_sd-wan_manager:18.3.6:*:*:*:*:*:*:*
cisco catalyst_sd-wan_manager 18.3.6.1 cpe:2.3:a:cisco:catalyst_sd-wan_manager:18.3.6.1:*:*:*:*:*:*:*
cisco catalyst_sd-wan_manager 18.3.7 cpe:2.3:a:cisco:catalyst_sd-wan_manager:18.3.7:*:*:*:*:*:*:*
cisco catalyst_sd-wan_manager 18.3.8 cpe:2.3:a:cisco:catalyst_sd-wan_manager:18.3.8:*:*:*:*:*:*:*
cisco catalyst_sd-wan_manager 18.4.0 cpe:2.3:a:cisco:catalyst_sd-wan_manager:18.4.0:*:*:*:*:*:*:*
cisco catalyst_sd-wan_manager 18.4.0.1 cpe:2.3:a:cisco:catalyst_sd-wan_manager:18.4.0.1:*:*:*:*:*:*:*
cisco catalyst_sd-wan_manager 18.4.1 cpe:2.3:a:cisco:catalyst_sd-wan_manager:18.4.1:*:*:*:*:*:*:*
cisco catalyst_sd-wan_manager 18.4.3 cpe:2.3:a:cisco:catalyst_sd-wan_manager:18.4.3:*:*:*:*:*:*:*
cisco catalyst_sd-wan_manager 18.4.4 cpe:2.3:a:cisco:catalyst_sd-wan_manager:18.4.4:*:*:*:*:*:*:*
cisco catalyst_sd-wan_manager 18.4.5 cpe:2.3:a:cisco:catalyst_sd-wan_manager:18.4.5:*:*:*:*:*:*:*
cisco catalyst_sd-wan_manager 18.4.302 cpe:2.3:a:cisco:catalyst_sd-wan_manager:18.4.302:*:*:*:*:*:*:*
cisco catalyst_sd-wan_manager 18.4.303 cpe:2.3:a:cisco:catalyst_sd-wan_manager:18.4.303:*:*:*:*:*:*:*
cisco catalyst_sd-wan_manager 18.4.501_es cpe:2.3:a:cisco:catalyst_sd-wan_manager:18.4.501_es:*:*:*:*:*:*:*
cisco catalyst_sd-wan_manager 19.0.0 cpe:2.3:a:cisco:catalyst_sd-wan_manager:19.0.0:*:*:*:*:*:*:*
cisco catalyst_sd-wan_manager 19.0.1a cpe:2.3:a:cisco:catalyst_sd-wan_manager:19.0.1a:*:*:*:*:*:*:*
cisco catalyst_sd-wan_manager 19.1.0 cpe:2.3:a:cisco:catalyst_sd-wan_manager:19.1.0:*:*:*:*:*:*:*
cisco catalyst_sd-wan_manager 19.2.0 cpe:2.3:a:cisco:catalyst_sd-wan_manager:19.2.0:*:*:*:*:*:*:*
cisco catalyst_sd-wan_manager 19.2.1 cpe:2.3:a:cisco:catalyst_sd-wan_manager:19.2.1:*:*:*:*:*:*:*
cisco catalyst_sd-wan_manager 19.2.2 cpe:2.3:a:cisco:catalyst_sd-wan_manager:19.2.2:*:*:*:*:*:*:*
cisco catalyst_sd-wan_manager 19.2.3 cpe:2.3:a:cisco:catalyst_sd-wan_manager:19.2.3:*:*:*:*:*:*:*
cisco catalyst_sd-wan_manager 19.2.31 cpe:2.3:a:cisco:catalyst_sd-wan_manager:19.2.31:*:*:*:*:*:*:*
cisco catalyst_sd-wan_manager 19.2.097 cpe:2.3:a:cisco:catalyst_sd-wan_manager:19.2.097:*:*:*:*:*:*:*
cisco catalyst_sd-wan_manager 19.2.098 cpe:2.3:a:cisco:catalyst_sd-wan_manager:19.2.098:*:*:*:*:*:*:*
cisco catalyst_sd-wan_manager 19.2.099 cpe:2.3:a:cisco:catalyst_sd-wan_manager:19.2.099:*:*:*:*:*:*:*
cisco catalyst_sd-wan_manager 19.2.929 cpe:2.3:a:cisco:catalyst_sd-wan_manager:19.2.929:*:*:*:*:*:*:*
cisco catalyst_sd-wan_manager 19.3.0 cpe:2.3:a:cisco:catalyst_sd-wan_manager:19.3.0:*:*:*:*:*:*:*
cisco catalyst_sd-wan_manager 20.1.1 cpe:2.3:a:cisco:catalyst_sd-wan_manager:20.1.1:*:*:*:*:*:*:*
cisco catalyst_sd-wan_manager 20.1.1.1 cpe:2.3:a:cisco:catalyst_sd-wan_manager:20.1.1.1:*:*:*:*:*:*:*
cisco catalyst_sd-wan_manager 20.1.2 cpe:2.3:a:cisco:catalyst_sd-wan_manager:20.1.2:*:*:*:*:*:*:*
cisco catalyst_sd-wan_manager 20.1.12 cpe:2.3:a:cisco:catalyst_sd-wan_manager:20.1.12:*:*:*:*:*:*:*
cisco catalyst_sd-wan_manager 20.3.1 cpe:2.3:a:cisco:catalyst_sd-wan_manager:20.3.1:*:*:*:*:*:*:*

References for CVE-2020-26074

cvelogic Threat Intelligence