CVE-2026-53195

HIGHNVD 7.8Trending — 4 sources updated this week
7.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 7.8Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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 v3
7.8
EG Score
0.0(none)
EPSS
10.4%
KEV
Not listed

Published

June 25, 2026

Last Modified

July 6, 2026

Advisory Details (8)

Auto-updated Jul 6, 2026
No patch confirmed yet.
generic

USB: serial: io_ti: fix heap overflow in build_i2c_fw_hdr() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/b7faf660eefa2047ebc2959ff76da2b6eae2e9e3
generic

USB: serial: io_ti: fix heap overflow in build_i2c_fw_hdr() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/5a79b634ee58786ca627268daefa7744f2af2e14
generic

USB: serial: io_ti: fix heap overflow in build_i2c_fw_hdr() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/4cb722747ed25971f35cc47ce5c0e79d7f717713
generic

USB: serial: io_ti: fix heap overflow in build_i2c_fw_hdr() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/3e187152f44d76d7633a3855ffd0099e1588b82a
generic

USB: serial: io_ti: fix heap overflow in build_i2c_fw_hdr() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/2fd64bf0ad66ab5de0c73524591d879427ba5aba
generic

USB: serial: io_ti: fix heap overflow in build_i2c_fw_hdr() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/294692d3296eee3391c348d7ea6401916d27806c
generic

USB: serial: io_ti: fix heap overflow in build_i2c_fw_hdr() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/130d6567eb148040eed1b73e1414ad6c27d22bd5
generic

USB: serial: io_ti: fix heap overflow in build_i2c_fw_hdr() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/0fd2b00b2d3d05e3eaa13342b3dfb0fa85c226ae

Vendor Advisories for CVE-2026-53195(2)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 15× in last 7d / 26× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-07-06 16:27 UTCEPSS rescore
  2. 2026-07-06 16:27 UTCEPSS rescore
  3. 2026-07-06 13:06 UTCNVD updateCVSS v3 → 7.8 · severity → HIGH
  4. 2026-07-06 02:23 UTCEPSS rescore
  5. 2026-07-06 02:23 UTCEPSS rescore
  6. 2026-07-05 02:31 UTCEPSS rescore
  7. 2026-07-05 02:30 UTCEPSS rescore
  8. 2026-07-04 09:42 UTCVendor advisory
  9. 2026-07-04 09:42 UTCGHSA enrichment
  10. 2026-07-04 06:31 UTCEPSS rescore
  11. 2026-07-04 06:31 UTCEPSS rescore
  12. 2026-07-01 15:07 UTCEPSS rescore
  13. 2026-07-01 09:51 UTCVendor advisory
  14. 2026-07-01 09:51 UTCGHSA enrichment
  15. 2026-06-30 23:22 UTCEPSS rescore
  16. 2026-06-29 14:06 UTCEPSS rescore
  17. 2026-06-29 14:06 UTCEPSS rescore
  18. 2026-06-28 14:07 UTCEPSS rescore
  19. 2026-06-28 09:59 UTCEG score recompute
  20. 2026-06-28 09:59 UTCGHSA enrichment
  21. 2026-06-28 04:56 UTCEPSS rescore
  22. 2026-06-28 04:56 UTCEPSS rescore
  23. 2026-06-27 03:08 UTCEPSS rescore
  24. 2026-06-25 13:49 UTCEPSS rescore
  25. 2026-06-25 10:07 UTCEG score recompute
Show 1 more
  1. 2026-06-25 10:07 UTCGHSA enrichment

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-53195?
CVE-2026-53195 is a high vulnerability published on June 25, 2026. In the Linux kernel, the following vulnerability has been resolved: USB: serial: ioti: fix heap overflow in buildi2cfwhdr() buildi2cfw_hdr() allocates a fixed-size buffer of (16*1024 - 512) + sizeof(struct tii2cfirmware_rec) bytes, then copies le16tocpu(img_header->Length) bytes into it without…
When was CVE-2026-53195 disclosed?
CVE-2026-53195 was first published in the National Vulnerability Database on June 25, 2026, with the most recent update on July 6, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-53195 actively exploited?
CVE-2026-53195 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 10.4% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-53195?
CVE-2026-53195 has a CVSS v3 base score of 7.8 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 0.0.
How do I remediate CVE-2026-53195?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-53195, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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