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CVE-2020-3593

25
FAUCET Score

CVE-2020-3593 is a privilege escalation vulnerability in Cisco SD-WAN Software, stemming from insufficient input validation. An authenticated, local attacker can exploit this by sending a crafted request to a utility, gaining root privileges on the underlying operating system. Rated 7.8 HIGH on CVSS, it requires local access but has low attack complexity, leading to high impact on confidentiality, integrity, and availability. Currently, there is no public exploit code, active exploitation, or significant community discussion, indicating low immediate threat.

Impacted Technologies

VendorProductVersion(s)CPE
< 20.1.2CPE matchmatch criteria
cpe:2.3:a:cisco:sd-wan:*:*:*:*:*:*:*:*
>= 20.3, < 20.3.1CPE matchmatch criteria
cpe:2.3:a:cisco:sd-wan:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.8HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.28%
Probability of exploitation in next 30 days
EPSS Percentile
20.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0028 is in the 57th percentile among its peer group of 17,070 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

ciscopatch availablevia nvd_reference
View patch

References

tools.cisco.com / security/center/content/CiscoSecurityAdvisory/cisco-sa-vepescm-BjgQm4vJ
PatchVendor Advisory