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CVE-2023-45840

22
FAUCET Score

CVE-2023-45840 describes multiple data integrity vulnerabilities in the package hash checking functionality of Buildroot 2023.08.1 and Buildroot dev commit 622698d7847, specifically impacting the riscv64-elf-toolchain package. This vulnerability carries a CVSS score of 8.1 (HIGH), indicating that an unauthenticated attacker can achieve arbitrary command execution on the builder via a complex man-in-the-middle attack. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
2023.08.1CPE matchmatch criteria
cpe:2.3:a:buildroot:buildroot:2023.08.1:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.1HIGH

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

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.2
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.81%
Probability of exploitation in next 30 days
EPSS Percentile
53.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0081 is in the 21st percentile among its peer group of 8,914 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.2 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

Remediation records are not available for this CVE.

References

talosintelligence.com / vulnerability_reports/TALOS-2023-1844
talosintelligence.com / vulnerability_reports/TALOS-2023-1844
ExploitThird Party Advisory
openwall.com / lists/oss-security/2023/12/11/1
Mailing ListThird Party Advisory