Strix
26.1K

CVE-2026-63959

UnknownEPSS 0.20%

Last modified

CVE-2026-63959 is a vulnerability of currently unknown severity. In the Linux kernel, the following vulnerability has been resolved: usb: typec: tcpm/tcpci_maxim: validate header NDO against RX_BYTE_CNT A broken/malicious port can transmit a CRC-valid frame whose header advertises up to seven data objects but whose body carries fewer than that. Check for this, and rightfully reject the message, instead of reading from uninitialized stack memory.. EPSS estimates a 0.20% chance of exploitation in the next 30 days.

Description

In the Linux kernel, the following vulnerability has been resolved: usb: typec: tcpm/tcpci_maxim: validate header NDO against RX_BYTE_CNT A broken/malicious port can transmit a CRC-valid frame whose header advertises up to seven data objects but whose body carries fewer than that. Check for this, and rightfully reject the message, instead of reading from uninitialized stack memory.

Metrics

EPSS Probability
0.20%

10.1th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
LinuxLinux>= 6f413b559f86a2894188e082e389ff95ee428345, < 0af00f1459f5dd757f0d392f8caa38039561ac62; >= 6f413b559f86a2894188e082e389ff95ee428345, < dc17721d42e6d89f63572e63add8306a0e15eb3c; >= 6f413b559f86a2894188e082e389ff95ee428345, < 9b496e3371c04f0a03b7faa5d2442536d00e3998; >= 6f413b559f86a2894188e082e389ff95ee428345, < c4ab8e2d4432abb646c5c0687f8dab173da901f9; >= 6f413b559f86a2894188e082e389ff95ee428345, < aa2f716327be1818e1cb156da8a2844804aaec2f
LinuxLinux5.10

References

Timeline

Published
Last Modified
Status
Awaiting Analysis

Frequently Asked Questions

What is CVE-2026-63959?
In the Linux kernel, the following vulnerability has been resolved: usb: typec: tcpm/tcpci_maxim: validate header NDO against RX_BYTE_CNT A broken/malicious port can transmit a CRC-valid frame whose header advertises up to seven data objects but whose body carries fewer than that. Check for this, and rightfully reject the message, instead of reading from uninitialized stack memory.
How severe is CVE-2026-63959?
Severity scoring for CVE-2026-63959 is pending analysis. The EPSS model estimates a 0.20% probability of exploitation in the next 30 days.
How do I fix CVE-2026-63959?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

How Strix Helps

Related CVEs from 2026

View all 2026CVEs →

Are you affected by CVE-2026-63959?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST