OpenSSL HTTP client no_proxy IPv6 out-of-bounds read
CVE-2025-9232 is an out-of-bounds read in OpenSSL's HTTP client API no_proxy handling. An application using the OpenSSL HTTP client API functions may trigger the flaw when the no_proxy environment variable is set and the host portion of the authority component of an HTTP URL is an IPv6 address. The vulnerable code is also reachable indirectly via OpenSSL's OCSP client functions and CMP client implementation, although the associated URLs in those paths are considered unlikely to be attacker-controlled. OpenSSL states the vulnerable code was introduced in patch releases 3.0.16, 3.1.8, 3.2.4, 3.3.3, 3.4.0, and 3.5.0. The issue is assessed as low severity because exploitation requires attacker influence over the URL input and, in the vulnerable code path, the out-of-bounds read can only trigger a crash.
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Impact, mitigation & remediation
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Impact
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Mitigation
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Remediation
Patch, then assume compromise.
Exploits
No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
Affected products & vendors
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Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
Recent activity
37 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
Denial-of-service condition associated with an outdated OpenSSL version used by SAP NetWeaver AS Java Adobe Document Services component.
An out-of-bounds read vulnerability in HTTP client no_proxy handling in OpenSSL.
An out-of-bounds read in HTTP client no_proxy handling in OpenSSL.
An out-of-bounds read in HTTP client no_proxy handling in OpenSSL, fixed in the 3.5.4 security patch release.
The version that knows your environment.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.