8.8

CVE-2025-21735: NFC: nci: Add bounds checking in nci_hci_create_pipe()

Modified
AliasesUBUNTU-CVE-2025-21735DEBIAN-CVE-2025-21735
Published 27-02-2025Last modified 15-10-2026

Vulnerability summary

CVE-2025-21735 is a high (CVSS 8.8) Out-of-bounds Write vulnerability in linux. EPSS estimates a 0.38% chance of exploitation in the next 30 days, higher than 32% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 8.8, adjacent network); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
8.8/10
010
High · v3.1 (CVE.org)
EPSS score
0.38%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 60 · Related 59
DLA-4102-1DLA-4178-1SUSE-SU-2025:01600-1SUSE-SU-2025:01919-1SUSE-SU-2025:1177-1SUSE-SU-2025:1178-1

Timeline

  1. 27-02-2025
    PublishedVulnerability first disclosed.
  2. 15-10-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: NFC: nci: Add bounds checking in nci_hci_create_pipe() The "pipe" variable is a u8 which comes from the network. If it's more than 127, then it results in memory corruption in the caller, nci_hci_connect_gate().

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.38%

Chance of exploitation in the next 30 days

Percentile

32%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.38% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: adjacent network, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu136 products
  • linux< 4.4.0-279.313 | < 4.15.0-248.260 | < 5.4.0-216.236 | < 5.15.0-140.150 | < 6.8.0-64.67
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-aws< 4.4.0-1153.159 | < 4.4.0-1191.206 | < 4.15.0-1190.203 | < 5.4.0-1146.156 | < 5.15.0-1084.91 | < 6.8.0-1032.34
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ a1b0b9415817c14d207921582f269d03f848b69f, < bd249109d266f1d52548c46634a15b71656e0d44 | ≥ a1b0b9415817c14d207921582f269d03f848b69f, < 674e17c5933779a8bf5c15d596fdfcb5ccdebbc2 | ≥ a1b0b9415817c14d207921582f269d03f848b69f, < 10b3f947b609713e04022101f492d288a014ddfa | ≥ a1b0b9415817c14d207921582f269d03f848b69f, < d5a461c315e5ff92657f84d8ba50caa5abf5c22a | ≥ a1b0b9415817c14d207921582f269d03f848b69f, < 172cdfc3a5ea20289c58fb73dadc6fd4a8784a4e | ≥ a1b0b9415817c14d207921582f269d03f848b69f, < 2ae4bade5a64d126bd18eb66bd419005c5550218 | ≥ a1b0b9415817c14d207921582f269d03f848b69f, < 59c7ed20217c0939862fbf8145bc49d5b3a13f4f | ≥ a1b0b9415817c14d207921582f269d03f848b69f, < 110b43ef05342d5a11284cc8b21582b698b4ef1c | 4.4
  • linux_kernel≥ 4.4, < 6.1.129 | ≥ 6.2, < 6.6.78 | ≥ 6.7, < 6.12.14 | ≥ 6.13, < 6.13.3
Debian1 product
  • linux< 6.1.129-1 | < 6.12.15-1

3 vendors · 139 products

References

66 links
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