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CVE-2025-0725— gzip integer overflow

Quick assessment

Affected
curl curl
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

curl是cURL开源的一款用于从服务器传输数据或向服务器传输数据的工具。 curl 7.10.5至8.11.1版本存在安全漏洞，该漏洞源于在使用zlib 1.2.0.3及之前版本自动解压缩HTTP响应时，攻击者可能利用整数溢出导致缓冲区溢出。

AI Predicted 9.8 Difficulty: Easy EPSS 1.26% · P69

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2025-0725

Vulnerability Information
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Vulnerability Title
gzip integer overflow
Source: CVE Program / CVE List V5
Vulnerability Description
When libcurl is asked to perform automatic gzip decompression of content-encoded HTTP responses with the `CURLOPT_ACCEPT_ENCODING` option, **using zlib 1.2.0.3 or older**, an attacker-controlled integer overflow would make libcurl perform a buffer overflow.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
curl 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
curl是cURL开源的一款用于从服务器传输数据或向服务器传输数据的工具。 curl 7.10.5至8.11.1版本存在安全漏洞，该漏洞源于在使用zlib 1.2.0.3及之前版本自动解压缩HTTP响应时，攻击者可能利用整数溢出导致缓冲区溢出。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
curl curl 8.11.1 ~ 8.11.1 -

II. Public POCs for CVE-2025-0725

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III. Intelligence Information for CVE-2025-0725

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Vendor Advisories for CVE-2025-0725 (2)

Same Patch Batch · curl · 2025-02-05 · 3 CVEs total

CVE-2025-0167 netrc and default credential leak
CVE-2025-0665 eventfd double close

IV. Related Vulnerabilities

Same product: curl
Same vendor: curl

V. Comments for CVE-2025-0725

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