CVE-2026-54634 Hamlib - Buffer Overflow & Information Disclosure

Hamlib < 4.7.2 contains a buffer overflow and information disclosure caused by out-of-bounds write and oversized copy in rigctld send_raw command, letting remote unauthenticated clients crash daemon or leak stack data.

CVSS base score 7.3 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
EPSS
0.44% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Buffer Overflow
Impact
Denial Of Service, Information Disclosure
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Published
17 September 2026
Updated
15 October 2026
Weakness
CWE-787

Vendor fix

Update to version 4.7.2 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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