CVE-2026-53195: linux Out-of-bounds Write
Vulnerability summary
CVE-2026-53195 is a high (CVSS 7.8) Out-of-bounds Write vulnerability in linux. EPSS estimates a 0.14% chance of exploitation in the next 30 days, higher than 3.1% of scored vulnerabilities.
Advisory lineage
Upstream 0 · Downstream 37 · Related 37Timeline
- 25-06-2026PublishedVulnerability first disclosed.
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.
CVSS metrics
3 scores · 3 sources · 1 version- OSV · UbuntuEcosystem advisory · calculated7.8HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated7.8HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS trend
Probability
0.14%
Chance of exploitation in the next 30 days
Percentile
3%
Versus all other CVEs
30-day change
0.00 pp
From 0.14% on 19-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Ubuntu168 products
- linuxAll versions (No fix recorded) | < 5.15.0-198.208 | < 6.8.0-146.146 | < 7.0.0-31.31
- linux-allwinner-5.19All versions (No fix recorded)
- linux-awsAll versions (No fix recorded) | < 5.15.0-1117.124 | < 6.8.0-1066.69 | < 7.0.0-1012.12
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.11All versions (No fix recorded)
Chainguard12 products
- linux-aws-6.12< 6.12.95-r0
- linux-aws-6.18< 6.18.38-r0
- linux-azure-6.18< 6.18.38-r0
- linux-gcp-6.12< 6.12.95-r0
- linux-gcp-6.18< 6.18.38-r0
Linux2 products
- linux≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 3e187152f44d76d7633a3855ffd0099e1588b82a | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < b7faf660eefa2047ebc2959ff76da2b6eae2e9e3 | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 2fd64bf0ad66ab5de0c73524591d879427ba5aba | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 4cb722747ed25971f35cc47ce5c0e79d7f717713 | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 130d6567eb148040eed1b73e1414ad6c27d22bd5 | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 294692d3296eee3391c348d7ea6401916d27806c | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 5a79b634ee58786ca627268daefa7744f2af2e14 | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 0fd2b00b2d3d05e3eaa13342b3dfb0fa85c226ae | 2.6.12
- linux_kernel≥ 2.6.12.1, < 5.10.259 | ≥ 5.11, < 5.15.210 | ≥ 5.16, < 6.1.176 | ≥ 6.2, < 6.6.143 | ≥ 6.7, < 6.12.94 | ≥ 6.13, < 6.18.36 | ≥ 6.19, < 7.0.13 | 2.6.12 | 2.6.12:rc2 | 2.6.12:rc3 | 2.6.12:rc4 | 2.6.12:rc5 | 7.1:rc1 | 7.1:rc2 | 7.1:rc3 | 7.1:rc4 | 7.1:rc5 | 7.1:rc6 | 7.1:rc7
Debian1 product
- linux< 6.1.176-1 | < 6.12.94-1 | < 7.0.13-1
4 vendors · 183 products
