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CVE-2025-47869

27
FAUCET Score

CVE-2025-47869 is a critical buffer overflow vulnerability in the Apache NuttX RTOS XMLRPC example application (versions 6.22 to before 12.9.0), stemming from an improper restriction of operations within a memory buffer. 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 remote attackers to achieve remote code execution or device crashes due to hardcoded buffer sizes in the device stats structure. There is currently no evidence of active exploitation, and no public exploit code (Metasploit, Nuclei, ExploitDB) is available, though it has garnered some community discussion. Users are advised to review their code for this pattern and update buffer sizes as demonstrated in version 12.9.0.

Impacted Technologies

VendorProductVersion(s)CPE
>= 6.22, < 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 36,835 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/2025/06/14/2
Mailing ListVendor Advisory
github.com / apache/nuttx-apps/pull/3027
Issue TrackingThird Party Advisory
lists.apache.org / thread/306qcqyc3bpb2ozh015yxjo9kqs4jbvj
Vendor Advisory