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CVE-2025-47868

25
FAUCET Score

CVE-2025-47868 describes a critical out-of-bounds write vulnerability, potentially leading to a heap-based buffer overflow, within the standalone bdf-converter utility of Apache NuttX RTOS versions prior to 12.9.0. This flaw, rated 9.8 CRITICAL (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H), allows unauthenticated attackers to achieve high impact on confidentiality, integrity, and availability if the tool processes untrusted external data. While the bdf-converter is not part of the RTOS runtime, active users exposing it to public data are at risk. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
>= 6.9, < 12.9.0CPE matchmatch criteria
cpe:2.3:a:apache:nuttx:*:*:*:*:*:*:*:*

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
0.63%
Probability of exploitation in next 30 days
EPSS Percentile
46.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0063 is in the 27th percentile among its peer group of 36,833 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

openwall.com / lists/oss-security/2025/06/14/1
Mailing ListVendor Advisory
github.com / apache/nuttx/pull/16000
Issue TrackingThird Party Advisory
lists.apache.org / thread/p4o2lcqgspx3ws1n2p4wmoqbqow1w1pw
Vendor Advisory