Bug 2502730 (CVE-2026-6949) - CVE-2026-6949 samba: TSIG packet with crafted name compression can crash DNS server
Summary: CVE-2026-6949 samba: TSIG packet with crafted name compression can crash DNS ...
Keywords:
Status: NEW
Alias: CVE-2026-6949
Deadline: 2026-07-28
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 2509257
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-07-20 11:06 UTC by OSIDB Bzimport
Modified: 2026-07-30 12:03 UTC (History)
3 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:

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Description OSIDB Bzimport 2026-07-20 11:06:39 UTC 
Incorrect size calculations when a TSIG record contains compressed names can lead to a large out-of-bounds write causing the server to crash.
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