Remote denial of service in Apache Traffic Control



Risk Medium
Patch available NO
Number of vulnerabilities 1
CVE-ID CVE-2025-61581
CWE-ID CWE-1333
Exploitation vector Network
Public exploit N/A
Vulnerable software
 Apache Traffic Control
Server applications / IDS/IPS systems, Firewalls and proxy servers

Vendor Apache Foundation

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Inefficient regular expression complexity

EUVDB-ID: #VU118829

Risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2025-61581

CWE-ID: CWE-1333 - Inefficient Regular Expression Complexity

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient input validation when processing untrusted input with a regular expressions. A remote attacker can pass specially crafted data to the application and perform regular expression denial of service (ReDos) attack.

Mitigation

Note, the product is no longer supported by the vendor. It is recommended to migrate to another solution. 

Vulnerable software versions

Apache Traffic Control: 1.1.2 - 8.0.2

CPE2.3 External links

https://lists.apache.org/thread/36s2xq8g5tjkb229znmsw534jf7pt98w


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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