CVE-2021-44040
7.5
HIGH
CVSS 3.1
EPSS 2.6%
Description
Improper Input Validation vulnerability in request line parsing of Apache Traffic Server allows an attacker to send invalid requests. This issue affects Apache Traffic Server 8.0.0 to 8.1.3 and 9.0.0 to 9.1.1.
How to fix CVE-2021-44040
To remediate CVE-2021-44040, upgrade the affected package to a fixed version below.
- Debian/trafficserver—upgrade to 8.1.1+ds-1.1+deb11u1 or later
Is CVE-2021-44040 being exploited?
Low — EPSS is 2.6%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 8.1.1+ds-1.1+deb11u1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N |