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Weakness (CWE)

CWE-675: Multiple Operations on Resource in Single-Operation Context

Class Draft

The product performs the same operation on a resource two or more times, when the operation should only be applied once.

Source: MITRE CWE-675

All Critical High Medium Low Exploited only Public exploit

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  • Low 3.7
    CVE-2026-77860

    'serve-expired' can bypass Unbound 'wait-limit'

    In NLnetLabs Unbound 1.20.0 up to and including 1.26.0, a vulnerability on the 'serve-expired' code path can cause a double decrement on the 'wait-limit' counter per client IP essentially bypassing one of the counter measures that was introduced for DNSBomb (…

    NLnet Labs Unbound unbound unbound Debian Ubuntu