CVE-2018-17281

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

53.38% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 98.9% of scored records. A rank, not a probability.

NVD base score

7.5 (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:N/I:N/A:H

NVD analysis status

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

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

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

2018-09-24 22:00Z7 YR AGO

Last updated

2024-08-05 10:47Z2 YR AGO

Reserved

2018-09-20

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-400Uncontrolled Resource ConsumptionClass

Data version

5.1

Document digest

a091e8bfb4c5af2f14b8a6c102a7c548b9f7510ccf5f59b6a8c00c519eab9e7e

• www.securitytracker.com1041694http://www.securitytracker.com/id/1041694vdb-entryx_refsource_SECTRACK
• seclists.org20180920 AST-2018-009: Remote crash vulnerability in HTTP websocket upgradehttp://seclists.org/fulldisclosure/2018/Sep/31mailing-listx_refsource_FULLDISC
• packetstormsecurity.comhttp://packetstormsecurity.com/files/149453/Asterisk-Project-Security-Advisory-AST-2018-009.htmlx_refsource_MISC
• www.debian.orgDSA-4320https://www.debian.org/security/2018/dsa-4320vendor-advisoryx_refsource_DEBIAN
• seclists.org20180920 AST-2018-009: Remote crash vulnerability in HTTP websocket upgradehttps://seclists.org/bugtraq/2018/Sep/53mailing-listx_refsource_BUGTRAQ
• issues.asterisk.orghttps://issues.asterisk.org/jira/browse/ASTERISK-28013x_refsource_CONFIRM
• lists.debian.org[debian-lts-announce] 20180927 [SECURITY] [DLA 1523-1] asterisk security updatehttps://lists.debian.org/debian-lts-announce/2018/09/msg00034.htmlmailing-listx_refsource_MLIST
• security.gentoo.orgGLSA-201811-11https://security.gentoo.org/glsa/201811-11vendor-advisoryx_refsource_GENTOO
• www.securityfocus.com105389http://www.securityfocus.com/bid/105389vdb-entryx_refsource_BID
• downloads.asterisk.orghttp://downloads.asterisk.org/pub/security/AST-2018-009.htmlx_refsource_CONFIRM