CVE-2021-44040 : Improper Input Validation vulnerability in request line parsing of Apache Traffic Server allows an attacker to send inva

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.

Published 2022-03-23 14:15:08

Updated 2022-10-14 11:40:13

Source Apache Software Foundation

View at NVD, CVE.org

Vulnerability category: Input validation

Threat overview for CVE-2021-44040

Top countries where our scanners detected CVE-2021-44040

Top open port discovered on systems with this issue 80

IPs affected by CVE-2021-44040 1,838

Threat actors abusing to this issue? Yes

Find out if you^* are affected by CVE-2021-44040!

^*Directly or indirectly through your vendors, service providers and 3rd parties. Powered by attack surface intelligence from SecurityScorecard.

Exploit prediction scoring system (EPSS) score for CVE-2021-44040

EPSS FAQ

0.16%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 51 %

Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2021-44040

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
5.0	MEDIUM	AV:N/AC:L/Au:N/C:N/I:P/A:N	10.0	2.9	NIST
Access Vector: Network Access Complexity: Low Authentication: None Confidentiality Impact: None Integrity Impact: Partial Availability Impact: None
7.5	HIGH	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N	3.9	3.6	NIST
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: None Scope: Unchanged Confidentiality: None Integrity: High Availability: None

CWE ids for CVE-2021-44040

CWE-20 Improper Input Validation

The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.

Assigned by:

nvd@nist.gov (Primary)
security@apache.org (Secondary)

References for CVE-2021-44040

Products affected by CVE-2021-44040