CVE-2026-53195

Description

In the Linux kernel, the following vulnerability has been resolved: USB: serial: io_ti: fix heap overflow in build_i2c_fw_hdr() build_i2c_fw_hdr() allocates a fixed-size buffer of (16*1024 - 512) + sizeof(struct ti_i2c_firmware_rec) bytes, then copies le16_to_cpu(img_header->Length) bytes into it without validating that Length fits within the available space after the firmware record header. img_header->Length is a __le16 from the firmware file and can be up to 65535. check_fw_sanity() validates the total firmware size but not img_header->Length specifically. Fix by rejecting images where img_header->Length exceeds the available destination space.

EPSS — Exploit Prediction

0.0020

Probability of exploitation

0.10%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

References

Other References

https://git.kernel.org/stable/c/0fd2b00b2d3d05e3eaa13342b3dfb0fa85c226ae https://git.kernel.org/stable/c/130d6567eb148040eed1b73e1414ad6c27d22bd5 https://git.kernel.org/stable/c/294692d3296eee3391c348d7ea6401916d27806c https://git.kernel.org/stable/c/2fd64bf0ad66ab5de0c73524591d879427ba5aba https://git.kernel.org/stable/c/3e187152f44d76d7633a3855ffd0099e1588b82a https://git.kernel.org/stable/c/4cb722747ed25971f35cc47ce5c0e79d7f717713 https://git.kernel.org/stable/c/5a79b634ee58786ca627268daefa7744f2af2e14 https://git.kernel.org/stable/c/b7faf660eefa2047ebc2959ff76da2b6eae2e9e3

Frequently Asked Questions

What is CVE-2026-53195? +

In the Linux kernel, the following vulnerability has been resolved: USB: serial: io_ti: fix heap overflow in build_i2c_fw_hdr() build_i2c_fw_hdr() allocates a fixed-size buffer of (16*1024 - 512) + sizeof(struct ti_i2c_firmware_rec) bytes, then copies le16_to_cpu(img_header->Length) bytes into it without validating that Length fits within the available space after the firmware record header. img_header->Length is a __le16 from the firmware file and can be up to 65535. check_fw_sanity() validates the total firmware size but not img_header->Length specifically. Fix by rejecting images where img_header->Length exceeds the available destination space.

How do I check if I'm vulnerable to CVE-2026-53195? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

Description

EPSS — Exploit Prediction

References

Other References

Frequently Asked Questions

Don't wait for an exploit