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CVE-2020-3208

18
FAUCET Score

CVE-2020-3208 is a medium-severity vulnerability affecting Cisco IOS Software on Cisco 809 and 829 Industrial Integrated Services Routers. It allows an authenticated, local attacker with privilege level 15 credentials to disable image verification and boot a malicious software image. The attack requires initial authentication and access to the Virtual Device Server (VDS) shell. While the CVSS score is 6.7, indicating high impact on confidentiality, integrity, and availability, the exploit complexity is low. There is no known active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage for this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
12.2\(60\)ez16CPE matchmatch criteria
cpe:2.3:o:cisco:ios:12.2\(60\)ez16:*:*:*:*:*:*:*
15.0\(2\)sg11aCPE matchmatch criteria
cpe:2.3:o:cisco:ios:15.0\(2\)sg11a:*:*:*:*:*:*:*
15.3\(3\)jaa1CPE matchmatch criteria
cpe:2.3:o:cisco:ios:15.3\(3\)jaa1:*:*:*:*:*:*:*
15.3\(3\)jpjCPE matchmatch criteria
cpe:2.3:o:cisco:ios:15.3\(3\)jpj:*:*:*:*:*:*:*
15.5\(3\)m0aCPE matchmatch criteria
cpe:2.3:o:cisco:ios:15.5\(3\)m0a:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

6.7MEDIUM

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
0.8
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
0.32%
Probability of exploitation in next 30 days
EPSS Percentile
24.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0032 is in the 72nd percentile among its peer group of 3,720 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, 0.0 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-ios-ir800-img-verif-wHhLYHjK
PatchVendor Advisory