BlackTreeCVE IntelligenceUnknown · util-linux
Medium technical severity with public exploit material referenced by a structured source; prioritise exposed affected systems while verifying vendor guidance.
Alpine, Debian findings are scoped to the named distribution, release and source package. An absent finding does not mean a package is unaffected.
A published vendor fix does not prove that a matching update is enabled and installable on a particular asset. Confirm the local package candidate before scheduling remediation.
| Distribution release | Source package | Vendor state | Fixed version | Evidence |
|---|---|---|---|---|
| Alpine v3.23v3.23 · main | util-linux | Vendor fix publishedAlpine records a security fix at this version. An absent entry does not mean the package is unaffected. | 2.37.3-r0 | Alpine Security Database ↗Source updated 3 Oct 2026 |
| Alpine v3.22v3.22 · main | util-linux | Vendor fix publishedAlpine records a security fix at this version. An absent entry does not mean the package is unaffected. | 2.37.3-r0 | Alpine Security Database ↗Source updated 3 Oct 2026 |
| Alpine v3.21v3.21 · main | util-linux | Vendor fix publishedAlpine records a security fix at this version. An absent entry does not mean the package is unaffected. | 2.37.3-r0 | Alpine Security Database ↗Source updated 3 Oct 2026 |
| Debian trixietrixie · source | util-linux | Vendor fix publishedDebian records a fixed source-package version for this release. | 2.37.3-1 | Debian Security Tracker ↗Source updated 6 Oct 2026 |
| Debian bookwormbookworm · source | util-linux | Vendor fix publishedDebian records a fixed source-package version for this release. | 2.37.3-1 | Debian Security Tracker ↗Source updated 6 Oct 2026 |
| Debian forkyforky · source | util-linux | Vendor fix publishedDebian records a fixed source-package version for this release. | 2.37.3-1 | Debian Security Tracker ↗Source updated 6 Oct 2026 |
| Debian sidsid · source | util-linux | Vendor fix publishedDebian records a fixed source-package version for this release. | 2.37.3-1 | Debian Security Tracker ↗Source updated 6 Oct 2026 |
Medium technical severity with public exploit material referenced by a structured source; prioritise exposed affected systems while verifying vendor guidance.
Patch availableA logic error was found in the libmount library of util-linux in the function that allows an unprivileged user to unmount a FUSE filesystem. This flaw allows an unprivileged local attacker to unmount FUSE filesystems that belong to certain other users who have a UID that is a prefix of the UID of the attacker in its string form. An attacker may use this flaw to cause a denial of service to applications that use the affected filesystems.
A logic error was found in the libmount library of util-linux in the function that allows an unprivileged user to unmount a FUSE filesystem. This flaw allows an unprivileged local attacker to unmount FUSE filesystems that belong to certain other users who have a UID that is a prefix of the UID of the attacker in its string form. An attacker may use this flaw to cause a denial of service to applications that use the affected filesystems.
A file or directory that should be restricted can be reached by an external party because its access controls or placement are unsafe.
An attacker operating through local access may attempt exploitation with low privileges. If successful, the issue may disrupt the affected service.
A logic error was found in the libmount library of util-linux in the function that allows an unprivileged user to unmount a FUSE filesystem. This flaw allows an unprivileged local attacker to unmount FUSE filesystems that belong to certain other users who have a UID that is a prefix of the UID of the attacker in its string form. An attacker may use this flaw to cause a denial of service to applications that use the affected filesystems.
A file or directory that should be restricted can be reached by an external party because its access controls or placement are unsafe.
An attacker operating through local access may attempt exploitation with low privileges. If successful, the issue may disrupt the affected service.
CVSS severity, EPSS forecast probability, public exploit material and CISA-confirmed exploitation are separate signals.
No CISA KEV match was present at the last successful refresh. This means no confirmation from that source, not proof of no exploitation.
A structured CVE source labels at least one public reference as exploit material. BlackTree has not independently validated that it is safe, reliable or weaponised.
CWE-552: Files or Directories Accessible to External Parties. The product makes files or directories accessible to unauthorized actors, even though they should not be.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HCommon Vulnerability Scoring System 3.1: the compact vector below is decoded into plain language.
Operational remediation based on structured source evidence.
Published 23 Aug 2022 · Last source change 3 Aug 2024, 17:16 UTC · CWE-552 · Files or Directories Accessible to External Parties
Missing structured fields: affected product. Missing data is not evidence of low risk; review the primary advisory.
No material field changes have been recorded since change tracking began. Routine source refreshes and cosmetic edits are intentionally excluded.