Multiple vulnerabilities in cURL



Risk High
Patch available YES
Number of vulnerabilities 3
CVE-ID CVE-2025-0167
CVE-2025-0665
CVE-2025-0725
CWE-ID CWE-200
CWE-399
CWE-190
Exploitation vector Network
Public exploit N/A
Vulnerable software
 cURL
Client/Desktop applications / Other client software

Vendor curl.haxx.se

Security Bulletin

This security bulletin contains information about 3 vulnerabilities.

1) Information disclosure

EUVDB-ID: #VU103648

Risk: Low

CVSSv4.0: 1.7 [CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:N/VA:N/SC:L/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2025-0167

CWE-ID: CWE-200 - Information exposure

Exploit availability: No

Description

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to application can leak credentials when asked to use a .netrc file for credentials and to follow HTTP redirects. A remote attacker can gain access to sensitive information.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

cURL: 7.76.0 - 8.11.1

CPE2.3 External links

http://curl.se/docs/CVE-2025-0167.html


Q & A

Can this vulnerability be exploited remotely?

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

Is there known malware, which exploits this vulnerability?

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

2) Resource management error

EUVDB-ID: #VU103647

Risk: Low

CVSSv4.0: 1.7 [CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2025-0665

CWE-ID: CWE-399 - Resource Management Errors

Exploit availability: No

Description

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

The vulnerability exists due to improper management of internal resources within the application when built with the threaded resolver. A remote attacker can force the application to wrongly close the same eventfd file descriptor twice when taking down a connection channel after having completed a threaded name resolve

Mitigation

Install updates from vendor's website.

Vulnerable software versions

cURL: 8.11.1

CPE2.3 External links

http://curl.se/docs/CVE-2025-0665.html


Q & A

Can this vulnerability be exploited remotely?

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

Is there known malware, which exploits this vulnerability?

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

3) Integer overflow

EUVDB-ID: #VU103646

Risk: High

CVSSv4.0: 4.8 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2025-0725

CWE-ID: CWE-190 - Integer overflow

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to integer overflow when handling gzip decompression of content-encoded HTTP responses with the CURLOPT_ACCEPT_ENCODING option using zlib 1.2.0.3 or older. A remote attacker can send specially crafted response to the application, trigger an integer overflow and execute arbitrary code on the target system.


Mitigation

Install updates from vendor's website.

Vulnerable software versions

cURL: 7.10.5 - 8.11.1

CPE2.3 External links

http://curl.se/docs/CVE-2025-0725.html


Q & A

Can this vulnerability be exploited remotely?

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

Is there known malware, which exploits this vulnerability?

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



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