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CVE-2020-3223

15
FAUCET Score

CVE-2020-3223 is a medium-severity vulnerability in the web-based user interface of Cisco IOS XE Software, allowing authenticated, remote attackers with administrative privileges to read arbitrary files. This is due to insufficient file scope limiting, enabling an attacker to craft a specific file reference and access it via the web UI. The vulnerability has a CVSS score of 4.9, indicating a network attack vector with low complexity, requiring high privileges, and resulting in high confidentiality impact. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
16.9.4CPE matchmatch criteria
cpe:2.3:o:cisco:ios_xe:16.9.4:*:*:*:*:*:*:*
16.9.4cCPE matchmatch criteria
cpe:2.3:o:cisco:ios_xe:16.9.4c:*:*:*:*:*:*:*
16.11.1CPE matchmatch criteria
cpe:2.3:o:cisco:ios_xe:16.11.1:*:*:*:*:*:*:*
16.11.1aCPE matchmatch criteria
cpe:2.3:o:cisco:ios_xe:16.11.1a:*:*:*:*:*:*:*
16.11.1bCPE matchmatch criteria
cpe:2.3:o:cisco:ios_xe:16.11.1b:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

4.5MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
0.9
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.91%
Probability of exploitation in next 30 days
EPSS Percentile
77.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0191 is in the 85th percentile among its peer group of 3,566 CVEs.

Social Chatter

No social media mentions found for this CVE.

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

Patch Available

Vendor Patches (1)

ciscopatch availablevia nvd_reference
View patch

References

tools.cisco.com / security/center/content/CiscoSecurityAdvisory/cisco-sa-webui-filerd-HngnDYGk
PatchVendor Advisory