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CVE-2020-3385

21
FAUCET Score

CVE-2020-3385 describes a denial-of-service vulnerability in the deep packet inspection (DPI) engine of Cisco SD-WAN vEdge Routers, including specific firmware versions and hardware models like the vEdge 5000 and vEdge Cloud Router. An unauthenticated, adjacent attacker can exploit this by sending malformed packets, causing the device to reboot. Rated Medium severity with a CVSS score of 6.5, this vulnerability requires adjacent access and has a high impact on availability. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
<= 18.3.0CPE matchmatch criteria
cpe:2.3:o:cisco:sd-wan_firmware:*:*:*:*:*:*:*:*
>= 18.4.0, < 18.4.5CPE matchmatch criteria
cpe:2.3:o:cisco:sd-wan_firmware:*:*:*:*:*:*:*:*
>= 19.2.0, < 19.2.3CPE matchmatch criteria
cpe:2.3:o:cisco:sd-wan_firmware:*:*:*:*:*:*:*:*
>= 19.3.0, < 20.1.1CPE matchmatch criteria
cpe:2.3:o:cisco:sd-wan_firmware:*:*:*:*:*:*:*:*
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:a:cisco:vedge_cloud_router:-:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

7.4HIGH

CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

Attack Vector
ADJACENT_NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
4.0
CvssVersion
3.0

Exploit Intelligence

EPSS Score
0.53%
Probability of exploitation in next 30 days
EPSS Percentile
41.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0053 is in the 64th percentile among its peer group of 1,802 CVEs.

Social Chatter

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

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (1)

ciscovendor investigatingvia nvd_reference
View patch

References

tools.cisco.com / security/center/content/CiscoSecurityAdvisory/cisco-sa-vedgfpdos-PkqQrnwV
Vendor Advisory