cvedb.io
CVE-2026-9539
MEDIUM · CVSS 6.5
EPSS exploitation probability: 1%
Published 2026-06-24T05:17:31.100 · Last modified 2026-06-24T13:16:37.960

Summary

An out-of-bounds heap read and integer underflow in the TCP urgent data handling (sosendoob) in freedesktop.org libslirp version before v4.9.2 on hypervisor host environments (e.g., QEMU) allows a privileged guest VM attacker (root or CAP_NET_RAW) to leak gigabytes of sensitive host-process heap memory via sending crafted TCP segments with manipulated URG flags and urgent pointers (ti_urp).

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.