CVE-2018-11806

Exploitation

Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.

SSVC decision

Not assessed by CISA

EPSS probability

0.82% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 54.7% of scored records. A rank, not a probability.

NVD base score

8.2 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

NVD analysis status

Modified. NVD last modified this record on 2026-06-17.

Red Hat severity

Important. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2018-06-13 16:00Z8 YR AGO

Last updated

2024-08-05 08:17Z2 YR AGO

Reserved

2018-06-05

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-787Out-of-bounds WriteBase
• CWE-122Heap-based Buffer OverflowVariant

Data version

5.1

Document digest

b421107ff00f089698b6b9df1b697906483cc54c1a5c445b908c1d305faae4b6

• access.redhat.comRHSA-2018:2762https://access.redhat.com/errata/RHSA-2018:2762vendor-advisoryx_refsource_REDHAT
• www.securityfocus.com104400http://www.securityfocus.com/bid/104400vdb-entryx_refsource_BID
• usn.ubuntu.comUSN-3826-1https://usn.ubuntu.com/3826-1/vendor-advisoryx_refsource_UBUNTU
• lists.gnu.org[qemu-devel] 20180605 [PATCH 1/2] slirp: correct size computation while concatenating mbufhttps://lists.gnu.org/archive/html/qemu-devel/2018-06/msg01012.htmlmailing-listx_refsource_MLIST
• www.openwall.com[oss-security] 20180607 CVE-2018-11806 Qemu: slirp: heap buffer overflow while reassembling fragmented datagramshttp://www.openwall.com/lists/oss-security/2018/06/07/1mailing-listx_refsource_MLIST
• bugzilla.redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=1586245x_refsource_CONFIRM
• www.zerodayinitiative.comhttps://www.zerodayinitiative.com/advisories/ZDI-18-567/x_refsource_MISC
• access.redhat.comRHSA-2018:2462https://access.redhat.com/errata/RHSA-2018:2462vendor-advisoryx_refsource_REDHAT
• access.redhat.comRHSA-2018:2822https://access.redhat.com/errata/RHSA-2018:2822vendor-advisoryx_refsource_REDHAT
• access.redhat.comRHSA-2018:2887https://access.redhat.com/errata/RHSA-2018:2887vendor-advisoryx_refsource_REDHAT
• lists.debian.org[debian-lts-announce] 20190509 [SECURITY] [DLA 1781-1] qemu security updatehttps://lists.debian.org/debian-lts-announce/2019/05/msg00010.htmlmailing-listx_refsource_MLIST
• www.debian.orgDSA-4454https://www.debian.org/security/2019/dsa-4454vendor-advisoryx_refsource_DEBIAN
• seclists.org20190531 [SECURITY] [DSA 4454-1] qemu security updatehttps://seclists.org/bugtraq/2019/May/76mailing-listx_refsource_BUGTRAQ
• access.redhat.comRHSA-2019:2892https://access.redhat.com/errata/RHSA-2019:2892vendor-advisoryx_refsource_REDHAT