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Vulnerability details: VCID-9b8b-pgsy-aaae
Vulnerability ID VCID-9b8b-pgsy-aaae
Aliases CVE-2021-44040
Summary 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.
Status Published
Exploitability 0.5
Weighted Severity 6.8
Risk 3.4
Affected and Fixed Packages Package Details
Weaknesses (1)
CWE-20 Improper Input Validation
System Score Found at
epss 0.00157 https://api.first.org/data/v1/epss?cve=CVE-2021-44040
epss 0.00157 https://api.first.org/data/v1/epss?cve=CVE-2021-44040
epss 0.00157 https://api.first.org/data/v1/epss?cve=CVE-2021-44040
epss 0.00157 https://api.first.org/data/v1/epss?cve=CVE-2021-44040
epss 0.00157 https://api.first.org/data/v1/epss?cve=CVE-2021-44040
epss 0.00157 https://api.first.org/data/v1/epss?cve=CVE-2021-44040
epss 0.00157 https://api.first.org/data/v1/epss?cve=CVE-2021-44040
epss 0.00157 https://api.first.org/data/v1/epss?cve=CVE-2021-44040
epss 0.00157 https://api.first.org/data/v1/epss?cve=CVE-2021-44040
epss 0.0016 https://api.first.org/data/v1/epss?cve=CVE-2021-44040
epss 0.0016 https://api.first.org/data/v1/epss?cve=CVE-2021-44040
epss 0.0016 https://api.first.org/data/v1/epss?cve=CVE-2021-44040
epss 0.0016 https://api.first.org/data/v1/epss?cve=CVE-2021-44040
epss 0.0016 https://api.first.org/data/v1/epss?cve=CVE-2021-44040
epss 0.0016 https://api.first.org/data/v1/epss?cve=CVE-2021-44040
epss 0.0016 https://api.first.org/data/v1/epss?cve=CVE-2021-44040
epss 0.0016 https://api.first.org/data/v1/epss?cve=CVE-2021-44040
epss 0.0016 https://api.first.org/data/v1/epss?cve=CVE-2021-44040
epss 0.0016 https://api.first.org/data/v1/epss?cve=CVE-2021-44040
epss 0.00179 https://api.first.org/data/v1/epss?cve=CVE-2021-44040
epss 0.00179 https://api.first.org/data/v1/epss?cve=CVE-2021-44040
epss 0.00179 https://api.first.org/data/v1/epss?cve=CVE-2021-44040
epss 0.00186 https://api.first.org/data/v1/epss?cve=CVE-2021-44040
epss 0.00186 https://api.first.org/data/v1/epss?cve=CVE-2021-44040
epss 0.00186 https://api.first.org/data/v1/epss?cve=CVE-2021-44040
epss 0.00186 https://api.first.org/data/v1/epss?cve=CVE-2021-44040
epss 0.00186 https://api.first.org/data/v1/epss?cve=CVE-2021-44040
epss 0.00186 https://api.first.org/data/v1/epss?cve=CVE-2021-44040
epss 0.00186 https://api.first.org/data/v1/epss?cve=CVE-2021-44040
epss 0.00186 https://api.first.org/data/v1/epss?cve=CVE-2021-44040
epss 0.00186 https://api.first.org/data/v1/epss?cve=CVE-2021-44040
epss 0.00186 https://api.first.org/data/v1/epss?cve=CVE-2021-44040
epss 0.00186 https://api.first.org/data/v1/epss?cve=CVE-2021-44040
epss 0.00186 https://api.first.org/data/v1/epss?cve=CVE-2021-44040
epss 0.00186 https://api.first.org/data/v1/epss?cve=CVE-2021-44040
epss 0.00186 https://api.first.org/data/v1/epss?cve=CVE-2021-44040
epss 0.00186 https://api.first.org/data/v1/epss?cve=CVE-2021-44040
epss 0.00186 https://api.first.org/data/v1/epss?cve=CVE-2021-44040
epss 0.00186 https://api.first.org/data/v1/epss?cve=CVE-2021-44040
epss 0.00186 https://api.first.org/data/v1/epss?cve=CVE-2021-44040
epss 0.00186 https://api.first.org/data/v1/epss?cve=CVE-2021-44040
epss 0.00186 https://api.first.org/data/v1/epss?cve=CVE-2021-44040
epss 0.00186 https://api.first.org/data/v1/epss?cve=CVE-2021-44040
epss 0.00186 https://api.first.org/data/v1/epss?cve=CVE-2021-44040
epss 0.00186 https://api.first.org/data/v1/epss?cve=CVE-2021-44040
epss 0.00186 https://api.first.org/data/v1/epss?cve=CVE-2021-44040
epss 0.00186 https://api.first.org/data/v1/epss?cve=CVE-2021-44040
epss 0.00186 https://api.first.org/data/v1/epss?cve=CVE-2021-44040
epss 0.00186 https://api.first.org/data/v1/epss?cve=CVE-2021-44040
epss 0.00186 https://api.first.org/data/v1/epss?cve=CVE-2021-44040
epss 0.00186 https://api.first.org/data/v1/epss?cve=CVE-2021-44040
epss 0.00186 https://api.first.org/data/v1/epss?cve=CVE-2021-44040
epss 0.00186 https://api.first.org/data/v1/epss?cve=CVE-2021-44040
epss 0.00186 https://api.first.org/data/v1/epss?cve=CVE-2021-44040
epss 0.00186 https://api.first.org/data/v1/epss?cve=CVE-2021-44040
epss 0.00186 https://api.first.org/data/v1/epss?cve=CVE-2021-44040
epss 0.00186 https://api.first.org/data/v1/epss?cve=CVE-2021-44040
epss 0.00186 https://api.first.org/data/v1/epss?cve=CVE-2021-44040
epss 0.00186 https://api.first.org/data/v1/epss?cve=CVE-2021-44040
epss 0.00186 https://api.first.org/data/v1/epss?cve=CVE-2021-44040
epss 0.00186 https://api.first.org/data/v1/epss?cve=CVE-2021-44040
epss 0.00186 https://api.first.org/data/v1/epss?cve=CVE-2021-44040
epss 0.00186 https://api.first.org/data/v1/epss?cve=CVE-2021-44040
epss 0.00186 https://api.first.org/data/v1/epss?cve=CVE-2021-44040
epss 0.00186 https://api.first.org/data/v1/epss?cve=CVE-2021-44040
epss 0.00186 https://api.first.org/data/v1/epss?cve=CVE-2021-44040
epss 0.00186 https://api.first.org/data/v1/epss?cve=CVE-2021-44040
epss 0.00186 https://api.first.org/data/v1/epss?cve=CVE-2021-44040
epss 0.00186 https://api.first.org/data/v1/epss?cve=CVE-2021-44040
epss 0.00189 https://api.first.org/data/v1/epss?cve=CVE-2021-44040
epss 0.00189 https://api.first.org/data/v1/epss?cve=CVE-2021-44040
epss 0.00189 https://api.first.org/data/v1/epss?cve=CVE-2021-44040
epss 0.00189 https://api.first.org/data/v1/epss?cve=CVE-2021-44040
epss 0.00252 https://api.first.org/data/v1/epss?cve=CVE-2021-44040
epss 0.00382 https://api.first.org/data/v1/epss?cve=CVE-2021-44040
epss 0.00515 https://api.first.org/data/v1/epss?cve=CVE-2021-44040
epss 0.00515 https://api.first.org/data/v1/epss?cve=CVE-2021-44040
epss 0.00515 https://api.first.org/data/v1/epss?cve=CVE-2021-44040
epss 0.00515 https://api.first.org/data/v1/epss?cve=CVE-2021-44040
epss 0.00515 https://api.first.org/data/v1/epss?cve=CVE-2021-44040
epss 0.00515 https://api.first.org/data/v1/epss?cve=CVE-2021-44040
epss 0.00515 https://api.first.org/data/v1/epss?cve=CVE-2021-44040
epss 0.00515 https://api.first.org/data/v1/epss?cve=CVE-2021-44040
epss 0.00515 https://api.first.org/data/v1/epss?cve=CVE-2021-44040
epss 0.00515 https://api.first.org/data/v1/epss?cve=CVE-2021-44040
epss 0.00515 https://api.first.org/data/v1/epss?cve=CVE-2021-44040
epss 0.00515 https://api.first.org/data/v1/epss?cve=CVE-2021-44040
epss 0.00515 https://api.first.org/data/v1/epss?cve=CVE-2021-44040
epss 0.00607 https://api.first.org/data/v1/epss?cve=CVE-2021-44040
epss 0.00607 https://api.first.org/data/v1/epss?cve=CVE-2021-44040
cvssv2 5.0 https://nvd.nist.gov/vuln/detail/CVE-2021-44040
cvssv3 7.5 https://nvd.nist.gov/vuln/detail/CVE-2021-44040
cvssv3.1 7.5 https://nvd.nist.gov/vuln/detail/CVE-2021-44040
Reference id Reference type URL
https://api.first.org/data/v1/epss?cve=CVE-2021-44040
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-37147
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-37148
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-37149
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-38161
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-44040
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-44759
https://lists.apache.org/thread/zblwzcfs9ryhwjr89wz4osw55pxm6dx6
https://www.debian.org/security/2022/dsa-5153
cpe:2.3:a:apache:traffic_server:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:apache:traffic_server:*:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*
CVE-2021-44040 https://nvd.nist.gov/vuln/detail/CVE-2021-44040
No exploits are available.
Vector: AV:N/AC:L/Au:N/C:N/I:P/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2021-44040
Exploitability (E) Access Vector (AV) Access Complexity (AC) Authentication (Au) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

high

functional

unproven

proof_of_concept

not_defined

local

adjacent_network

network

high

medium

low

multiple

single

none

none

partial

complete

none

partial

complete

none

partial

complete
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2021-44040
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2021-44040
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Exploit Prediction Scoring System (EPSS)
Percentile 0.52859
EPSS Score 0.00157
Published At Nov. 1, 2024, midnight
Date Actor Action Source VulnerableCode Version
There are no relevant records.