CVE Vulnerabilities

CVE-2026-6554

Loop with Unreachable Exit Condition ('Infinite Loop')

Published: Sep 05, 2026 | Modified: Sep 08, 2026
CVSS 3.x
N/A
Source:
NVD
CVSS 2.x
RedHat/V2
RedHat/V3
5.5 MODERATE
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Ubuntu
MEDIUM
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libpcap BPF interpreter treats the offset in the ja L BPF instruction as a signed integer to implement looping via backward jumps, but it does not limit the number of loop iterations. In particular uncommon use cases a crafted filter program can cause the interpreter to loop infinitely.

Weakness

The product contains an iteration or loop with an exit condition that cannot be reached, i.e., an infinite loop.

References