CVE-2026-68343
Detail
Received This CVE record has recently been published to the CVE List and has been included within the NVD dataset.
Description
In the Linux kernel, the following vulnerability has been resolved:
smb: client: validate DFS referral PathConsumed
parse_dfs_referrals() validates that the response contains the fixed
referral entry array and, on for-next, the per-referral string offsets.
However, the response also contains a PathConsumed value that is later
used for DFS path parsing.
If a malformed response provides a PathConsumed value larger than the
search name, later DFS parsing can advance beyond the end of the path.
Validate PathConsumed against the search name length before storing it in
the parsed referral.
Metrics
CVSS Version 4.0
CVSS Version 3.x
CVSS Version 2.0
NVD enrichment efforts reference publicly available information to associate
vector strings. CVSS information contributed by other sources is also
displayed.
CVSS 4.0 Severity and Vector Strings:
NVD assessment
not yet provided.
CVSS 3.x Severity and Vector Strings:
NVD assessment
not yet provided.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
CVSS 2.0 Severity and Vector Strings:
NVD assessment
not yet provided.
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Change History
4 change records found show changes
CVE Modified by kernel.org
8/19/2026 1:20:44 PM
Action
Type
Old Value
New Value
Added
Reference
https://git.kernel.org/stable/c/bfebe5110fd135d86d65a0a346e14c106b02028b
Changed
Affected
[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","programFiles":["fs/smb/client/misc.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"4ecce920e13ace16a5ba45efe8909946c28fb2ad","lessThan":"5b439f39f33ec15d319ced3b025e122346fba987","versionType":"git","status":"affected"},{"version":"4ecce920e13ace16a5ba45efe8909946c28fb2ad","lessThan":"285bd4a5f3f156aa5869843b47a1b1380b774241","versionType":"git","status":"affected"},{"version":"4ecce920e13ace16a5ba45efe8909946c28fb2ad","lessThan":"2fdd6d196c656b376cc251e1e9ff110b3ed522e1","versionType":"git","status":"affected"},{"version":"4ecce920e13ace16a5ba45efe8909946c28fb2ad","lessThan":"9f88a99ed511651b2dc2177d6854b2d1b8322e75","versionType":"git","status":"affected"},{"version":"4ecce920e13ace16a5ba45efe8909946c28fb2ad","lessThan":"f6f5ee2aa33b350c671721b965251c42cebb962e","versionType":"git","status":"affected"}]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","programFiles":["fs/smb/client/misc.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"4.11","status":"affected"},{"version":"0","lessThan":"4.11","versionType":"semver","status":"unaffected"},{"version":"6.6.148","lessThanOrEqual":"6.6.*","versionType":"semver","status":"unaffected"},{"version":"6.12.101","lessThanOrEqual":"6.12.*","versionType":"semver","status":"unaffected"},{"version":"6.18.42","lessThanOrEqual":"6.18.*","versionType":"semver","status":"unaffected"},{"version":"7.1.6","lessThanOrEqual":"7.1.*","versionType":"semver","status":"unaffected"},{"version":"7.2","lessThanOrEqual":"*","versionType":"original_commit_for_fix","status":"unaffected"}]}]
[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","programFiles":["fs/smb/client/misc.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"4ecce920e13ace16a5ba45efe8909946c28fb2ad","lessThan":"bfebe5110fd135d86d65a0a346e14c106b02028b","versionType":"git","status":"affected"},{"version":"4ecce920e13ace16a5ba45efe8909946c28fb2ad","lessThan":"5b439f39f33ec15d319ced3b025e122346fba987","versionType":"git","status":"affected"},{"version":"4ecce920e13ace16a5ba45efe8909946c28fb2ad","lessThan":"285bd4a5f3f156aa5869843b47a1b1380b774241","versionType":"git","status":"affected"},{"version":"4ecce920e13ace16a5ba45efe8909946c28fb2ad","lessThan":"2fdd6d196c656b376cc251e1e9ff110b3ed522e1","versionType":"git","status":"affected"},{"version":"4ecce920e13ace16a5ba45efe8909946c28fb2ad","lessThan":"9f88a99ed511651b2dc2177d6854b2d1b8322e75","versionType":"git","status":"affected"},{"version":"4ecce920e13ace16a5ba45efe8909946c28fb2ad","lessThan":"f6f5ee2aa33b350c671721b965251c42cebb962e","versionType":"git","status":"affected"}]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","programFiles":["fs/smb/client/misc.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"4.11","status":"affected"},{"version":"0","lessThan":"4.11","versionType":"semver","status":"unaffected"},{"version":"6.1.183","lessThanOrEqual":"6.1.*","versionType":"semver","status":"unaffected"},{"version":"6.6.148","lessThanOrEqual":"6.6.*","versionType":"semver","status":"unaffected"},{"version":"6.12.101","lessThanOrEqual":"6.12.*","versionType":"semver","status":"unaffected"},{"version":"6.18.42","lessThanOrEqual":"6.18.*","versionType":"semver","status":"unaffected"},{"version":"7.1.6","lessThanOrEqual":"7.1.*","versionType":"semver","status":"unaffected"},{"version":"7.2","lessThanOrEqual":"*","versionType":"original_commit_for_fix","status":"unaffected"}]}]
CVE Modified by kernel.org
8/17/2026 2:17:42 AM
Action
Type
Old Value
New Value
Changed
Affected
[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","programFiles":["fs/smb/client/misc.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"4ecce920e13ace16a5ba45efe8909946c28fb2ad","lessThan":"5b439f39f33ec15d319ced3b025e122346fba987","versionType":"git","status":"affected"},{"version":"4ecce920e13ace16a5ba45efe8909946c28fb2ad","lessThan":"285bd4a5f3f156aa5869843b47a1b1380b774241","versionType":"git","status":"affected"},{"version":"4ecce920e13ace16a5ba45efe8909946c28fb2ad","lessThan":"2fdd6d196c656b376cc251e1e9ff110b3ed522e1","versionType":"git","status":"affected"},{"version":"4ecce920e13ace16a5ba45efe8909946c28fb2ad","lessThan":"9f88a99ed511651b2dc2177d6854b2d1b8322e75","versionType":"git","status":"affected"},{"version":"4ecce920e13ace16a5ba45efe8909946c28fb2ad","lessThan":"f6f5ee2aa33b350c671721b965251c42cebb962e","versionType":"git","status":"affected"}]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","programFiles":["fs/smb/client/misc.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"4.11","status":"affected"},{"version":"0","lessThan":"4.11","versionType":"semver","status":"unaffected"},{"version":"6.6.148","lessThanOrEqual":"6.6.*","versionType":"semver","status":"unaffected"},{"version":"6.12.101","lessThanOrEqual":"6.12.*","versionType":"semver","status":"unaffected"},{"version":"6.18.42","lessThanOrEqual":"6.18.*","versionType":"semver","status":"unaffected"},{"version":"7.1.6","lessThanOrEqual":"7.1.*","versionType":"semver","status":"unaffected"},{"version":"7.2-rc5","lessThanOrEqual":"*","versionType":"original_commit_for_fix","status":"unaffected"}]}]
[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","programFiles":["fs/smb/client/misc.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"4ecce920e13ace16a5ba45efe8909946c28fb2ad","lessThan":"5b439f39f33ec15d319ced3b025e122346fba987","versionType":"git","status":"affected"},{"version":"4ecce920e13ace16a5ba45efe8909946c28fb2ad","lessThan":"285bd4a5f3f156aa5869843b47a1b1380b774241","versionType":"git","status":"affected"},{"version":"4ecce920e13ace16a5ba45efe8909946c28fb2ad","lessThan":"2fdd6d196c656b376cc251e1e9ff110b3ed522e1","versionType":"git","status":"affected"},{"version":"4ecce920e13ace16a5ba45efe8909946c28fb2ad","lessThan":"9f88a99ed511651b2dc2177d6854b2d1b8322e75","versionType":"git","status":"affected"},{"version":"4ecce920e13ace16a5ba45efe8909946c28fb2ad","lessThan":"f6f5ee2aa33b350c671721b965251c42cebb962e","versionType":"git","status":"affected"}]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","programFiles":["fs/smb/client/misc.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"4.11","status":"affected"},{"version":"0","lessThan":"4.11","versionType":"semver","status":"unaffected"},{"version":"6.6.148","lessThanOrEqual":"6.6.*","versionType":"semver","status":"unaffected"},{"version":"6.12.101","lessThanOrEqual":"6.12.*","versionType":"semver","status":"unaffected"},{"version":"6.18.42","lessThanOrEqual":"6.18.*","versionType":"semver","status":"unaffected"},{"version":"7.1.6","lessThanOrEqual":"7.1.*","versionType":"semver","status":"unaffected"},{"version":"7.2","lessThanOrEqual":"*","versionType":"original_commit_for_fix","status":"unaffected"}]}]
CVE Modified by kernel.org
8/13/2026 7:17:31 PM
Action
Type
Old Value
New Value
Added
CVSS V3.1
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
New CVE Received from kernel.org
8/10/2026 9:20:24 AM
Action
Type
Old Value
New Value
Added
Description
In the Linux kernel, the following vulnerability has been resolved:
smb: client: validate DFS referral PathConsumed
parse_dfs_referrals() validates that the response contains the fixed
referral entry array and, on for-next, the per-referral string offsets.
However, the response also contains a PathConsumed value that is later
used for DFS path parsing.
If a malformed response provides a PathConsumed value larger than the
search name, later DFS parsing can advance beyond the end of the path.
Validate PathConsumed against the search name length before storing it in
the parsed referral.
Added
Reference
https://git.kernel.org/stable/c/285bd4a5f3f156aa5869843b47a1b1380b774241
Added
Reference
https://git.kernel.org/stable/c/2fdd6d196c656b376cc251e1e9ff110b3ed522e1
Added
Reference
https://git.kernel.org/stable/c/5b439f39f33ec15d319ced3b025e122346fba987
Added
Reference
https://git.kernel.org/stable/c/9f88a99ed511651b2dc2177d6854b2d1b8322e75
Added
Reference
https://git.kernel.org/stable/c/f6f5ee2aa33b350c671721b965251c42cebb962e
Added
Affected
[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","programFiles":["fs/smb/client/misc.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"4ecce920e13ace16a5ba45efe8909946c28fb2ad","lessThan":"5b439f39f33ec15d319ced3b025e122346fba987","versionType":"git","status":"affected"},{"version":"4ecce920e13ace16a5ba45efe8909946c28fb2ad","lessThan":"285bd4a5f3f156aa5869843b47a1b1380b774241","versionType":"git","status":"affected"},{"version":"4ecce920e13ace16a5ba45efe8909946c28fb2ad","lessThan":"2fdd6d196c656b376cc251e1e9ff110b3ed522e1","versionType":"git","status":"affected"},{"version":"4ecce920e13ace16a5ba45efe8909946c28fb2ad","lessThan":"9f88a99ed511651b2dc2177d6854b2d1b8322e75","versionType":"git","status":"affected"},{"version":"4ecce920e13ace16a5ba45efe8909946c28fb2ad","lessThan":"f6f5ee2aa33b350c671721b965251c42cebb962e","versionType":"git","status":"affected"}]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","programFiles":["fs/smb/client/misc.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"4.11","status":"affected"},{"version":"0","lessThan":"4.11","versionType":"semver","status":"unaffected"},{"version":"6.6.148","lessThanOrEqual":"6.6.*","versionType":"semver","status":"unaffected"},{"version":"6.12.101","lessThanOrEqual":"6.12.*","versionType":"semver","status":"unaffected"},{"version":"6.18.42","lessThanOrEqual":"6.18.*","versionType":"semver","status":"unaffected"},{"version":"7.1.6","lessThanOrEqual":"7.1.*","versionType":"semver","status":"unaffected"},{"version":"7.2-rc5","lessThanOrEqual":"*","versionType":"original_commit_for_fix","status":"unaffected"}]}]
Quick Info
CVE Dictionary Entry: CVE-2026-68343 NVD
Published Date: 08/10/2026 NVD
Last Modified: 08/19/2026
Source: kernel.org
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