CVE-2018-8040

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

7.17% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 93.8% of scored records. A rank, not a probability.

NVD base score

5.3 (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:L/A:N

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

2018-08-29 13:00Z8 YR AGO

Last updated

2024-09-17 02:21Z1 YR AGO

Reserved

2018-03-09

Assigning CNA

apache

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-668Exposure of Resource to Wrong SphereClass

Data version

5.1

Document digest

3608d644dbabd3d48829b7f53759b1b94675ab8971883c8c804ab633f4cdd3d9

• github.comhttps://github.com/apache/trafficserver/pull/3926x_refsource_CONFIRM
• lists.apache.org[trafficserver-users] 20180828 [ANNOUNCE] Apache Traffic Server vulnerability with header variable access in the ESI plugin - CVE-2018-8040https://lists.apache.org/thread.html/cc7aa2ce1c6f4fe0c6bfef517763cdaad30ec7bcb0115b73f73f3c01%40%3Cusers.trafficserver.apache.org%3Emailing-listx_refsource_MLIST
• lists.apache.org[trafficserver-users] 20180828 Re: [ANNOUNCE] Apache Traffic Server vulnerability with header variable access in the ESI plugin - CVE-2018-8040https://lists.apache.org/thread.html/36b3df68fe7311965f6bc4630ca413d2aa99d8f1d53affda85ea70d7%40%3Cusers.trafficserver.apache.org%3Emailing-listx_refsource_MLIST
• www.debian.orgDSA-4282https://www.debian.org/security/2018/dsa-4282vendor-advisoryx_refsource_DEBIAN
• www.securityfocus.com105181http://www.securityfocus.com/bid/105181vdb-entryx_refsource_BID