CVE-2017-18206

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

3.11% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 86.9% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

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

NVD analysis status

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

Red Hat severity

Low. 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

2018-02-27 22:00Z8 YR AGO

Last updated

2024-08-05 21:13Z2 YR AGO

Reserved

2018-02-27

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-119Improper Restriction of Operations within the Bounds of a Memory BufferClass
• CWE-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')Base

Data version

5.1

Document digest

b3843d55bc3a6f9a930edbf4c9878cd4f88bf866ce245f22a95f2e7af4b295ac

• usn.ubuntu.comUSN-3593-1https://usn.ubuntu.com/3593-1/vendor-advisoryx_refsource_UBUNTU
• security.gentoo.orgGLSA-201805-10https://security.gentoo.org/glsa/201805-10vendor-advisoryx_refsource_GENTOO
• access.redhat.comRHSA-2018:1932https://access.redhat.com/errata/RHSA-2018:1932vendor-advisoryx_refsource_REDHAT
• sourceforge.nethttps://sourceforge.net/p/zsh/code/ci/c7a9cf465dd620ef48d586026944d9bd7a0d5d6dx_refsource_MISC
• access.redhat.comRHSA-2018:3073https://access.redhat.com/errata/RHSA-2018:3073vendor-advisoryx_refsource_REDHAT
• lists.debian.org[debian-lts-announce] 20201201 [SECURITY] [DLA 2470-1] zsh security updatehttps://lists.debian.org/debian-lts-announce/2020/12/msg00000.htmlmailing-listx_refsource_MLIST