CVE-2017-8284

7.0 highEPSS 0.4%

High (7.0) in qemu qemu. EPSS 0.4% chance of exploitation in the next 30 days.

The disas_insn function in target/i386/translate.c in QEMU before 2.9.0, when TCG mode without hardware acceleration is used, does not limit the instruction size, which allows local users to gain privileges by creating a modified basic block that injects code into a setuid program, as demonstrated by procmail. NOTE: the vendor has stated "this bug does not violate any security guarantees QEMU makes.

Severity

CVSS 3.0

7.0 high

CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS: 0.4% chance of exploitation in the next 30 days; higher than 37% of CVEs (scores of 2026-10-31)
CWE: CWE-94
Published: 2017-04-26
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

qemu:qemu

References

https://bugs.chromium.org/p/project-zero/issues/detail?id=1122
https://github.com/qemu/qemu/commit/30663fd26c0307e414622c7a8607fbc04f92ec14
https://bugs.chromium.org/p/project-zero/issues/detail?id=1122
https://github.com/qemu/qemu/commit/30663fd26c0307e414622c7a8607fbc04f92ec14

Check your stack JSON