CVE-2026-73584
Sblim-sfcb: sblim-sfcb: privileged file corruption and denial of service via insecure temporary file handling
A flaw was found in sblim-sfcb. A local, low-privileged attacker can exploit a race condition during privileged instance migration by manipulating a temporary file in the /tmp directory. By repeatedly recreating a symbolic link, the attacker can redirect privileged output to an arbitrary file. This can lead to privileged file corruption or a denial of service (DoS) on the system.
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- High
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
Sblim-sfcb: sblim-sfcb: privileged file corruption and denial of service via insecure temporary file handling
A flaw was found in sblim-sfcb. A local, low-privileged attacker can exploit a race condition during privileged instance migration by manipulating a temporary file in the /tmp directory. By repeatedly recreating a symbolic link, the attacker can redirect privileged output to an arbitrary file. This can lead to privileged file corruption or a denial of service (DoS) on the system.
- Record
CVE-2026-73584- CVSS 3.1
- 6.3 Medium
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:H - Weakness
- CWE-377
- Updated
- 2026-11-05
EUVDEUVD-2026-57829
A flaw was found in sblim-sfcb. A local, low-privileged attacker can exploit a race condition during privileged instance migration by manipulating a temporary file in the /tmp directory. By repeatedly recreating a symbolic link, the attacker can redirect privileged output to an arbitrary file. This can lead to privileged file corruption or a denial of service (DoS) on the system.
- Record
EUVD-2026-57829- CVSS 3.1
- 6.3 Medium
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:H - Updated
- 2026-11-06
GitHub AdvisoriesGHSA-58x3-7493-rjr4
A flaw was found in sblim-sfcb. A local, low-privileged attacker can exploit a race condition...
A flaw was found in sblim-sfcb. A local, low-privileged attacker can exploit a race condition during privileged instance migration by manipulating a temporary file in the /tmp directory. By repeatedly recreating a symbolic link, the attacker can redirect privileged output to an arbitrary file. This can lead to privileged file corruption or a denial of service (DoS) on the system.
- Record
GHSA-58x3-7493-rjr4- CVSS 3.1
- 6.3 Medium
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:H - Weakness
- CWE-377
- Updated
- 2026-11-02
NVD
A flaw was found in sblim-sfcb. A local, low-privileged attacker can exploit a race condition during privileged instance migration by manipulating a temporary file in the /tmp directory. By repeatedly recreating a symbolic link, the attacker can redirect privileged output to an arbitrary file. This can lead to privileged file corruption or a denial of service (DoS) on the system.
- Record
CVE-2026-73584- CVSS 3.1
- 6.3 Medium
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:H - Weakness
- CWE-377
- Updated
- 2026-11-06
OSVUBUNTU-CVE-2026-73584
A flaw was found in sblim-sfcb. A local, low-privileged attacker can exploit a race condition during privileged instance migration by manipulating a temporary file in the /tmp directory. By repeatedly recreating a symbolic link, the attacker can redirect privileged output to an arbitrary file. This can lead to privileged file corruption or a denial of service (DoS) on the system.
- Record
UBUNTU-CVE-2026-73584- CVSS 3.1
- 6.3 Medium
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:H - Updated
- 2026-11-02
OSVAZL-96612 No score
CVE-2026-73584 affecting package sblim-sfcb 1.4.9-20
A flaw was found in sblim-sfcb. A local, low-privileged attacker can exploit a race condition during privileged instance migration by manipulating a temporary file in the /tmp directory. By repeatedly recreating a symbolic link, the attacker can redirect privileged output to an arbitrary file. This can lead to privileged file corruption or a denial of service (DoS) on the system.
- Record
AZL-96612- Updated
- 2026-11-05
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
sblim-sfcbAzure Linux:3 |
through 1.4.9-20 | None known |
sblim-sfcbUbuntu:16.04:LTS |
All versions, plus listed versions 1.4.8-0ubuntu2 |
None known |
sblim-sfcbUbuntu:18.04:LTS |
All versions, plus listed versions 1.4.9-0ubuntu11.4.9-0ubuntu31.4.9-0ubuntu5 |
None known |
sblim-sfcbUbuntu:20.04:LTS |
All versions, plus listed versions 1.4.9-0ubuntu5 |
None known |
sblim-sfcbUbuntu:22.04:LTS |
All versions, plus listed versions 1.4.9-0ubuntu51.4.9-0ubuntu7 |
None known |
sblim-sfcbUbuntu:24.04:LTS |
All versions, plus listed versions 1.4.9-0ubuntu71.4.9-0ubuntu91.4.9-0ubuntu10 |
None known |
sblim-sfcbUbuntu:26.04:LTS |
All versions, plus listed versions 1.4.9-0ubuntu10 |
None known |
History
| Recorded | Changed | Sources |
|---|---|---|
| references | CVE List, EUVD, NVD | |
| facts | OSV | |
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-73584 is a medium vulnerability (CVSS 6.3) in Red Hat Enterprise Linux 10, published August 13, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.13%, the 2nd percentile. No source names a fixed version.