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CVE-2021-45783

29
FAUCET Score

CVE-2021-45783 is a directory traversal vulnerability affecting Bookeen Notea Firmware BK_R_1.0.5_20210608. This flaw allows an unauthenticated attacker with physical access to the device to read sensitive information due to improper path sanitization. It carries a CVSS score of 4.6 (Medium) with a low attack complexity, indicating a high impact on confidentiality. While not listed on CISA's KEV catalog, a public exploit (EDB-50897) is available, though there is no evidence of active exploitation or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
bk_r_1.0.5_20210608CPE matchmatch criteria
cpe:2.3:o:bookeen:notea_firmware:bk_r_1.0.5_20210608:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

4.6MEDIUM

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

Attack Vector
PHYSICAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
0.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.87%
Probability of exploitation in next 30 days
EPSS Percentile
77.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
ExploitDB: EDB-50897 · May 11, 2022
This CVE's current EPSS score of 0.0187 is in the 99th percentile among its peer group of 1,531 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 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 0.2 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/167016/Bookeen-Notea-BK_R_1.0.5_20210608-Directory-Traversal.html
ExploitThird Party Advisory
github.com / cmaillioux/SecurityResearch/blob/main/CVE-2021-45783
ExploitThird Party Advisory