CVE-2025-0725: When libcurl is asked to perform automatic gzip decompression of
content-encoded HTTP responses with the `CURL
55
This week
HIGH 7.3REMOTEMITIGATEMITIGATEMITIGATE
CVE-2025-0725 is a high-severity flaw (CVSS 7.3) affecting hci baseboard management controller, hci h610s firmware, hci h610c firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
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.
Why this priority
High severity
Public exploit reference
Remotely exploitable, no login, no user action
No fix is published yet: follow the downgrade or mitigation steps.
Apply the vendor mitigation from the advisory, disable the affected feature, or restrict network access.
Verify at the official sourceNVD · CVE Program · Report a problem with this page Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2025-0725?
hci baseboard management controller: mitigate or apply the listed mitigation; hci h610s firmware: mitigate or apply the listed mitigation; hci h610c firmware: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.
Is CVE-2025-0725 being exploited?
CVE-2025-0725 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2025-0725 affect?
CVE-2025-0725 affects hci baseboard management controller, hci h610s firmware, hci h610c firmware. Severity is high (CVSS 7.3). 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
How urgent is CVE-2025-0725?
Priority 55/100. High severity; Public exploit reference; Remotely exploitable, no login, no user action