Answer in brief
CVE-2025-38618 records a High severity (CVSS 7.8) vulnerability in vsock: Do not allow binding to VMADDR_PORT_ANY. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 7.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=d021c344051af91f42c5ba9fdedc176740cbd238 <c04a2c1ca25b9b23104124d3b2d349d934e302de || >=d021c344051af91f42c5ba9fdedc176740cbd238 <d1a5b1964cef42727668ac0d8532dae4f8c19386 || >=d021c344051af91f42c5ba9fdedc176740cbd238 <cf86704798c1b9c46fa59dfc2d662f57d1394d79 || >=d021c344051af91f42c5ba9fdedc176740cbd238 <f138be5d7f301fddad4e65ec66dfc3ceebf79be3 || >=d021c344051af91f42c5ba9fdedc176740cbd238 <44bd006d5c93f6a8f28b106cbae2428c5d0275b7 || >=d021c344051af91f42c5ba9fdedc176740cbd238 <32950b1907919be86a7a2697d6f93d57068b3865 || >=d021c344051af91f42c5ba9fdedc176740cbd238 <8f01093646b49f6330bb2d36761983fd829472b1 || >=d021c344051af91f42c5ba9fdedc176740cbd238 <d73960f0cf03ef1dc9e96ec7a20e538accc26d87 || >=d021c344051af91f42c5ba9fdedc176740cbd238 <aba0c94f61ec05315fa7815d21aefa4c87f6a9f4 | c04a2c1ca25b9b23104124d3b2d349d934e302de, d1a5b1964cef42727668ac0d8532dae4f8c19386, cf86704798c1b9c46fa59dfc2d662f57d1394d79, f138be5d7f301fddad4e65ec66dfc3ceebf79be3, 44bd006d5c93f6a8f28b106cbae2428c5d0275b7, 32950b1907919be86a7a2697d6f93d57068b3865, 8f01093646b49f6330bb2d36761983fd829472b1, d73960f0cf03ef1dc9e96ec7a20e538accc26d87, aba0c94f61ec05315fa7815d21aefa4c87f6a9f4 |
| Linux/Linuxgeneric | 3.9 | Not reported |
Published upstream
Aug 22, 2025
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 5, 2026
In the Linux kernel, the following vulnerability has been resolved: vsock: Do not allow binding to VMADDR_PORT_ANY It is possible for a vsock to autobind to VMADDR_PORT_ANY. This can cause a use-after-free when a connection is made to the bound socket. The socket returned by accept() also has port VMADDR_PORT_ANY but is not on the list of unbound sockets. Binding it will result in an extra refcount decrement similar to the one fixed in fcdd2242c023 (vsock: Keep the binding until socket destruction). Modify the check in __vsock_bind_connectible() to also prevent binding to VMADDR_PORT_ANY.
Quoted source text, attributed separately from HOL analysis.