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ReviewHigh

CVE-2026-74557

Linux

In the Linux kernel, the following vulnerability has been resolved: scsi: libiscsi: Fix stale-data leak into the SCSI sense buffer iscsi_scsi_cmd_rsp() copies the sense data of a SCSI Response from the target-supplied data segment. The segment carries a 2-byte sense length followed by the sense bytes, so it must hold 2 + senselen bytes, but the bounds check only requires datalen >= senselen: senselen = get_unaligned_be16(data); if (datalen < senselen) goto invalid_datalen; memcpy(sc->sense_buffer, data + 2, min_t(uint16_t, senselen, SCSI_SENSE_BUFFERSIZE)); A target that returns a SCSI Resp...

CVSS
7.5
EPSS
-
- percentile
CISA KEV
Not listed
Published
2026.08.15
PRIORITY ASSESSMENT

Review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV
Exploit probability-
Technical severityCVSS 7.5

Vulnerability overview

In the Linux kernel, the following vulnerability has been resolved: scsi: libiscsi: Fix stale-data leak into the SCSI sense buffer iscsi_scsi_cmd_rsp() copies the sense data of a SCSI Response from the target-supplied data segment. The segment carries a 2-byte sense length followed by the sense bytes, so it must hold 2 + senselen bytes, but the bounds check only requires datalen >= senselen: senselen = get_unaligned_be16(data); if (datalen < senselen) goto invalid_datalen; memcpy(sc->sense_buffer, data + 2, min_t(uint16_t, senselen, SCSI_SENSE_BUFFERSIZE)); A target that returns a SCSI Resp...

Affected product and versions

Product
Linux
Affected versions
>= 7996a778ff8c717cb1a7a294475c59cc8f1e9fb8 < 812f1ae95b22419422972748f173b0916ee4d621, >= 7996a778ff8c717cb1a7a294475c59cc8f1e9fb8 < fef6167e8149896cd81bea333fd51b1c91239149, >= 7996a778ff8c717cb1a7a294475c59cc8f1e9fb8 < baa04572673125e4d5bc309b4077d1cb46cc78d1, >= 7996a778ff8c717cb1a7a294475c59cc8f1e9fb8 < 7567f06abdefb1caf2d836107c4d08c5185c650e, >= 7996a778ff8c717cb1a7a294475c59cc8f1e9fb8 < 60499924faf4ef97e84228c20515218ef121facf, >= 7996a778ff8c717cb1a7a294475c59cc8f1e9fb8 < 3ef209ca0b4b68c75e9a814d90cc916026b5a6ac, >= 7996a778ff8c717cb1a7a294475c59cc8f1e9fb8 < 1f07a897d43c63e6c9458bf77450defef39b5833, >= 7996a778ff8c717cb1a7a294475c59cc8f1e9fb8 < 98b87885de4b7f605533a2860685f5689fce8e82, >= 2.6.18
Fixed versions
No verified fixed-version field is available yet

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide
  1. 1
    Identify

    Confirm that Linux 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:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CWE
Not available