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CVE-2025-53477

24
FAUCET Score

CVE-2025-53477 is a NULL Pointer Dereference vulnerability in Apache NimBLE versions through 1.8.0, stemming from missing validation of HCI connection complete or HCI command TX buffer. This issue carries a CVSS score of 7.5 (HIGH), indicating a potential for high availability impact, though it requires disabled asserts and a broken or bogus Bluetooth controller, making exploitation less straightforward. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
< 1.9.0CPE matchmatch criteria
cpe:2.3:a:apache:nimble:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.70%
Probability of exploitation in next 30 days
EPSS Percentile
49.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0070 is in the 25th percentile among its peer group of 51,506 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 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

Patch Available

Vendor Patches (1)

github_advisorypatch availablevia nvd_reference
View patch

References

openwall.com / lists/oss-security/2026/01/08/3
Mailing ListThird Party Advisory
github.com / apache/mynewt-nimble/commit/0caf9baeb271ede85fcc5237ab87ddbf938600da
Patch
github.com / apache/mynewt-nimble/commit/3160b8c4c7ff8db4e0f9badcdf7df684b151e077
Patch
lists.apache.org / thread/1dxthc132hwm2tzvjblrtnschcsbw2vo
Mailing ListVendor Advisory