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CVE-2018-18438
Qemu has integer overflows because IOReadHandler and its associated functions use a signed integer data type for a size value.
Medium5.5EPSS 0.44%
- Published
- Updated
- Reserved
- Assigned by
- mitre
Description
Qemu has integer overflows because IOReadHandler and its associated functions use a signed integer data type for a size value.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.0 | Medium5.5 | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.44% · top 61% of all CVEs (5 Nov 2026)
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The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.5.
Weakness
Affected products
n/a
- affected n/a
References (4)
- 105953 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- [qemu-devel] 20181012 [PATCH v2 07/11] chardev: Let IOReadHandler use unsigned type (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [qemu-devel] 20181012 [PATCH v2 00/11] chardev: Convert IO handlers to use unsigned type (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [oss-security] 20181017 CVE-2018-18438 Qemu: Integer overflow in ccid_card_vscard_read() allows memory corruption (opens in a new tab)mailing-listx_refsource_MLISTx_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)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
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[](https://trackcve.app/cve/CVE-2018-18438)Record last updated .