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CVE-2021-38759

50
FAUCET Score

CVE-2021-38759 describes a critical vulnerability in Raspberry Pi OS through version 5.10, where the default 'pi' user account retains the 'raspberry' password. This allows unauthenticated attackers to gain administrator privileges if the default credentials are not changed. With a CVSS score of 9.8 (CRITICAL) and a FAUCET Risk Score of 98/100, this vulnerability presents a significant risk due to its network-based attack vector, low complexity, and high impact on confidentiality, integrity, and availability. While not listed on the KEV catalog or Hot List, an ExploitDB entry (EDB-50576) confirms the availability of exploit code, despite minimal community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
<= 5.10CPE matchmatch criteria
cpe:2.3:o:raspberrypi:raspberry_pi_os_lite:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
15.67%
Probability of exploitation in next 30 days
EPSS Percentile
96.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
ExploitDB: EDB-50576 · Dec 9, 2021
This CVE's current EPSS score of 0.1567 is in the 93rd percentile among its peer group of 36,897 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 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

Remediation records are not available for this CVE.

References

packetstormsecurity.com / files/165211/Raspberry-Pi-5.10-Default-Credentials.html
Third Party AdvisoryVDB Entry
arstechnica.com / gadgets/2022/04/raspberry-pi-os-axes-longstanding-default-user-account-in-the-name-of-security
Third Party Advisory
cnvd.org.cn / flaw/show/CNVD-2021-43968
Third Party Advisory
raspberrypi.com / documentation/computers/configuration.html
Vendor Advisory