CVE-2026-53196USB: serial: io_ti: fix heap overflow in get_manuf_info()
- 6.8MediumCVSS base score
- 0.27%Exploitation in 30 daysEPSS · top 80% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
In the Linux kernel, the following vulnerability has been resolved: USB: serial: io_ti: fix heap overflow in get_manuf_info() get_manuf_info() reads le16_to_cpu(rom_desc->Size) bytes from the device I2C EEPROM into a buffer allocated with kmalloc_obj(), which is sizeof(struct edge_ti_manuf_descriptor) = 10 bytes. The Size field comes from the device and is only validated (in check_i2c_image()) to make sure the descriptor fits within TI_MAX_I2C_SIZE (16384 bytes), not against the destination buffer size. A malicious USB device can therefore set Size to any value up to 16377, causing a heap overflow of up to 16367 bytes when plugged into a host running this driver. valid_csum() is called after read_rom() and also iterates buffer[0..Size-1], compounding the out-of-bounds access. Fix by rejecting descriptors with unexpected length before calling read_rom(). [ johan: amend commit message; also check for short descriptors ]
Timeline
ID reserved
By Linux
- 16 days later
· 16 days later
Published
- 4 months later
· 4 months later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| redhat-SADPADP (enrichment) | 3.1 | Medium6.8 | CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVDNVD · Modified | 3.1 | Medium6.8 | CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 0.27% · top 80% of all CVEs (14 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 6.8.
Affected products
- affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – < e168db91442b94e64fa82a7dd297983d48ea5cc0
- affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – < 561edb021486e6723d841926aa4b48097da06190
- affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – < cfd634f6dfd40c49a84f9bddc2867a80e2e2623a
- affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – < d92f17af7097d10bdeddf26f66f34b354104b277
- affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – < b849f30d1a9e66aae6b715aaef66e427390cb081
- affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – < f96cf7bf9fbf15d7fcf0c91fec47ba8a010369ea
- affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – < d214d2341d4f9f447e36a7d012cdf6a6631a55f1
- affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – < 183c1076eca43bbb3e7bdf597456f91d81c73e74
- affected 2.6.12
- unaffected < 2.6.12
- unaffected 5.10.259 – ≤ 5.10.*
- unaffected 5.15.210 – ≤ 5.15.*
- unaffected 6.1.176 – ≤ 6.1.*
- unaffected 6.6.143 – ≤ 6.6.*
- unaffected 6.12.94 – ≤ 6.12.*
- unaffected 6.18.36 – ≤ 6.18.*
- unaffected 7.0.13 – ≤ 7.0.*
- unaffected 7.1 – ≤ *
References
References21
- https://git.kernel.org/stable/c/e168db91442b94e64fa82a7dd297983d48ea5cc0 (opens in a new tab)
- https://git.kernel.org/stable/c/561edb021486e6723d841926aa4b48097da06190 (opens in a new tab)
- https://git.kernel.org/stable/c/cfd634f6dfd40c49a84f9bddc2867a80e2e2623a (opens in a new tab)
- https://git.kernel.org/stable/c/d92f17af7097d10bdeddf26f66f34b354104b277 (opens in a new tab)
- https://git.kernel.org/stable/c/b849f30d1a9e66aae6b715aaef66e427390cb081 (opens in a new tab)
- https://git.kernel.org/stable/c/f96cf7bf9fbf15d7fcf0c91fec47ba8a010369ea (opens in a new tab)
- https://git.kernel.org/stable/c/d214d2341d4f9f447e36a7d012cdf6a6631a55f1 (opens in a new tab)
- https://git.kernel.org/stable/c/183c1076eca43bbb3e7bdf597456f91d81c73e74 (opens in a new tab)
- https://access.redhat.com/security/cve/CVE-2026-53196 (opens in a new tab)vdb-entryx_refsource_REDHAT
- RHBZ#2492750 (opens in a new tab)issue-trackingx_refsource_REDHAT
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-53196.json (opens in a new tab)x_sadp-csaf-vex
- https://access.redhat.com/errata/RHSA-2026:67114 (opens in a new tab)vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:61887 (opens in a new tab)vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:67723 (opens in a new tab)vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:65712 (opens in a new tab)vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:65708 (opens in a new tab)vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:68570 (opens in a new tab)vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:65710 (opens in a new tab)vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:65711 (opens in a new tab)vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:65709 (opens in a new tab)vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:67721 (opens in a new tab)vendor-advisoryx_refsource_REDHAT
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2026-39287 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2026-53196)Record last updated .