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Review reviewHigh

CVE-2025-71093

Linux Linux, linux kernel

In the Linux kernel, the following vulnerability has been resolved: e1000: fix OOB in e1000_tbi_should_accept() In e1000_tbi_should_accept() we read the last byte of the frame via 'data[length - 1]' to evaluate the TBI workaround. If the descriptor- reported length is zero or larger than the actual RX buffer size, this read goes out of bounds and can hit unrelated slab objects. The issue is observed from the NAPI receive path (e1000_clean_rx_irq): ================================================================== BUG: KASAN: slab-out-of-bounds in e1000_tbi_should_accept+0x610/0x790 Read of...

CVSS
7.1
EPSS
0.24%
15.7% percentile
CISA KEV
Not listed
Published
2026.01.14
PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV
Exploit probability0.24%
Technical severityCVSS 7.1

Vulnerability overview

In the Linux kernel, the following vulnerability has been resolved: e1000: fix OOB in e1000_tbi_should_accept() In e1000_tbi_should_accept() we read the last byte of the frame via 'data[length - 1]' to evaluate the TBI workaround. If the descriptor- reported length is zero or larger than the actual RX buffer size, this read goes out of bounds and can hit unrelated slab objects. The issue is observed from the NAPI receive path (e1000_clean_rx_irq): ================================================================== BUG: KASAN: slab-out-of-bounds in e1000_tbi_should_accept+0x610/0x790 Read of...

Affected product and versions

Product
Linux Linux, linux kernel
Affected versions
>= 2037110c96d5f1dd71453fcd0d54e79be12a352b < 4ccfa56f272241e8d8e2c38191fdbb03df489d80, >= 2037110c96d5f1dd71453fcd0d54e79be12a352b < 278b7cfe0d4da7502c7fd679b15032f014c92892, >= 2037110c96d5f1dd71453fcd0d54e79be12a352b < ad7a2a45e2417ac54089926b520924f8f0d91aea, >= 2037110c96d5f1dd71453fcd0d54e79be12a352b < 2c4c0c09f9648ba766d399917d420d03e7b3e1f8, >= 2037110c96d5f1dd71453fcd0d54e79be12a352b < 26c8bebc2f25288c2bcac7bc0a7662279a0e817c, >= 2037110c96d5f1dd71453fcd0d54e79be12a352b < ee7c125fb3e8b04dd46510130b9fc92380e5d578, >= 2037110c96d5f1dd71453fcd0d54e79be12a352b < 9c72a5182ed92904d01057f208c390a303f00a0f, >= 3.18, >= 3.18.1 < 5.10.248, >= 5.11 < 5.15.198, >= 5.16 < 6.1.160, >= 6.2 < 6.6.120, >= 6.7 < 6.12.64, >= 6.13 < 6.18.4, 3.18, 6.19
Fixed versions
5.10.248, 5.15.198, 6.1.160, 6.6.120, 6.12.64, 6.18.4

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide
  1. 1
    Identify

    Confirm that Linux Linux, linux kernel and an affected version are present.

  2. 2
    Prioritize

    Combine exploitation signals with asset exposure and business criticality.

  3. 3
    Remediate

    Follow the vendor advisory or supported update path and preserve rollback options.

  4. 4
    Verify

    Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
CWE
CWE-125