CVE-2025-0725

moderate-risk
Published 2025-02-05

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.

Do I need to act?

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0.44% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
7
CVSS 7.3/10 High
NETWORK / LOW complexity

Affected Products (8)

Affected Vendors

Haxx Netapp

References (8)

Vendor Advisory https://curl.se/docs/CVE-2025-0725.html
Vendor Advisory https://curl.se/docs/CVE-2025-0725.json
Exploit https://hackerone.com/reports/2956023
Mailing List http://www.openwall.com/lists/oss-security/2025/02/05/3
Mailing List http://www.openwall.com/lists/oss-security/2025/02/06/2
Mailing List http://www.openwall.com/lists/oss-security/2025/02/06/4
Patch https://github.com/curl/curl/commit/76f83f0db23846e254d940ec7
Third Party Advisory https://security.netapp.com/advisory/ntap-20250306-0009/
42
/ 100
moderate-risk
Severity 26/34 · High
Exploitability 2/34 · Minimal
Exposure 14/34 · Moderate