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CVE-2021-1449

21
FAUCET Score

CVE-2021-1449 is a medium-severity vulnerability in Cisco Access Point Software's boot logic, allowing an authenticated, local attacker with devshell access to execute unsigned code at boot time. This bypasses secure boot image verification. The CVSS score is 6.7, indicating high impact on confidentiality, integrity, and availability, but requiring high privileges and local access. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:a:cisco:aironet_access_point_software:-:*:*:*:*:*:*:*
< 16.12.5CPE matchmatch criteria
cpe:2.3:o:cisco:catalyst_9800_firmware:*:*:*:*:*:*:*:*
>= 17.1, < 17.3.3CPE matchmatch criteria
cpe:2.3:o:cisco:catalyst_9800_firmware:*:*:*:*:*:*:*:*
>= 17.4, < 17.5.1CPE matchmatch criteria
cpe:2.3:o:cisco:catalyst_9800_firmware:*:*:*:*:*:*:*:*
< 8.5.171.0CPE matchmatch criteria
cpe:2.3:a:cisco:wireless_lan_controller_software:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

6.7MEDIUM

CVSS:3.1/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
3.1

Exploit Intelligence

EPSS Score
0.27%
Probability of exploitation in next 30 days
EPSS Percentile
18.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0027 is in the 65th percentile among its peer group of 3,720 CVEs.

Social Chatter

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

Vendor Patches (1)

ciscovendor investigatingvia nvd_reference
View patch

References

tools.cisco.com / security/center/content/CiscoSecurityAdvisory/cisco-sa-ap-privesc-wEVfp8Ud
Vendor Advisory