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CVE-2018-7550
The load_multiboot function in hw/i386/multiboot.c in Quick Emulator (aka QEMU) allows local guest OS users to execute arbitrary code on…
- 8.8HighCVSS base score
- 0.61%Exploitation in 30 daysEPSS · top 50% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
The load_multiboot function in hw/i386/multiboot.c in Quick Emulator (aka QEMU) allows local guest OS users to execute arbitrary code on the QEMU host via a mh_load_end_addr value greater than mh_bss_end_addr, which triggers an out-of-bounds read or write memory access.
Timeline
ID reserved
By mitre
- 2 days later
· 2 days later
Published
- 6 years later
· 6 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.1 | High8.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 0.61% · top 50% of all CVEs (10 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 8.8.
Affected products
n/a
- affected n/a
References
11
- RHSA-2018:1369 (opens in a new tab)vendor-advisoryx_transferred
- [qemu-devel] 20180228 [PATCH] multiboot: check mh_load_end_addr address field (opens in a new tab)mailing-listx_transferred
- [debian-lts-announce] 20180417 [SECURITY] [DLA 1351-1] qemu security update (opens in a new tab)mailing-listx_transferred
- USN-3649-1 (opens in a new tab)vendor-advisoryx_transferred
- [debian-lts-announce] 20180906 [SECURITY] [DLA 1497-1] qemu security update (opens in a new tab)mailing-listx_transferred
- DSA-4213 (opens in a new tab)vendor-advisoryx_transferred
- [debian-lts-announce] 20180417 [SECURITY] [DLA 1350-1] qemu-kvm security update (opens in a new tab)mailing-listx_transferred
- 103181 (opens in a new tab)vdb-entryx_transferred
- https://bugzilla.redhat.com/show_bug.cgi?id=1549798 (opens in a new tab)x_transferred
- RHSA-2018:2462 (opens in a new tab)vendor-advisoryx_transferred
- https://github.com/orangecertcc/security-research/security/advisories/GHSA-f49v-45qp-cv53 (opens in a new tab)x_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2018-19277 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2018-7550)Record last updated .