Insufficient bounds checking in phalFelica API in NXP NxpNfcRdLib
Key facts
- Attack vector
- Local
- Privileges required
- High
- User interaction
- None
- Attack complexity
- High
- Impact type
- —
- Confidentiality · integrity · availability
- Low · Low · Low
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA.
Summary
NXP NxpNfcRdLib from RC663 before 07.18.00 has insufficient bounds checking in the phalFelica API. An attacker with privileges or an untrusted third party can reach unintended memory regions, which may limit confidentiality, integrity and availability. The flaw is an out of bounds write (CWE-787).
Written with Claude Haiku 5.5 from the sources below · 2026-10-29
Description from the CNA
Insufficient API bounds checking in phalFelica in NXP NXPNfcRdLib RC663 through 07.14.00_Pub may allow an attacker with privileges or an untrusted third party to access unintended memory regions, potentially leading to limited loss of confidentiality, integrity, and availability. All software versions from 07.18.00 onwards have fixed this problem.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
Update NXP NxpNfcRdLib to version 07.18.00 or later. The sources list no advisory identifier for this fix.
Written with Claude Haiku 5.5 from the sources below · 2026-10-29
- Fix · CNA NxpNfcRdLib (NXP) Fixed in 07.18.00
Timeline
- 2026-10-08 Threatist record created from CVE-2026-87726
- 2026-10-08 Alias added: GHSA-wc27-c63p-953m
- 2026-10-08 CISA SSVC decision points changed
References
More NXP vulnerabilities
- TI-2021-05573 NXP MQX Integer Overflow or Wraparound CVSS 3.1CRITICAL 9.8
- TI-2021-08911 NXP MCUXpresso SDK Integer Overflow or Wraparound CVSS 3.1CRITICAL 9.8
- TI-2019-10598 On NXP Kinetis KV1x, Kinetis KV3x, and Kinetis K8x devices, Flash Access Controls (FAC)… CVSS 3.1CRITICAL 9.8
- TI-2019-13063 The Bluetooth Low Energy implementation on NXP SDK through 2.2.1 for KW41Z devices does… CVSS 3.1HIGH 8.8
- TI-2022-07063 NXP LPC55S66JBD64, LPC55S66JBD100, LPC55S66JEV98, LPC55S69JBD64, LPC55S69JBD100, and… CVSS 3.1HIGH 7.8
- TI-2017-14764 Out-of-bounds write in NXP MQX Classic RTCS UDP recvfrom() CVSS 3.1MEDIUM 6.5
Sources
- CVE-2026-87726 · CVE Program
- CVE-2026-87726 · NVD
- FIRST EPSS
- GHSA-wc27-c63p-953m · GitHub Advisory Database · CC BY 4.0
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