PatchTheCEVCVE-2026-59124: Deserialization of untrusted data in Microsoft High Performance Computing (HPC) Pack allows an unauthorized at
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CRITICAL 9.8REMOTEWATCHLISTUPGRADE
CVE-2026-59124 is a critical-severity flaw (CVSS 9.8) affecting windows app. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
Deserialization of untrusted data in Microsoft High Performance Computing (HPC) Pack allows an unauthorized attacker to execute code over a network.
Why this priority
- Critical severity
- CISA SSVC: automatable with total technical impact
- Remotely exploitable, no login, no user action
- On your watchlist
A fixed release or distro patch exists.
Risk facts
| CVSS score | 9.8 (Critical) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | None |
| User interaction | None |
| EPSS exploit chance | 1.5% (top 25%) |
| CISA exploited list | No |
| Weakness | CWE-502 |
| Published | 2026-08-11 |
| Last modified | 2026-10-23 |
Publisher (CNA): Microsoft Corporation · Vendor: microsoft
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
microsoft windows app UPGRADE
Affected: < 2.0.1314.0
Fixed in: 2.0.1314.0
Safe to downgrade to: no unaffected older release
1. Check installed version
apt-cache policy windows-app || rpm -q windows-app || windows-app --version
2. UPGRADE to 2.0.1314.0 (Debian / Ubuntu)
sudo apt update && sudo apt install --only-upgrade windows-app
2. UPGRADE (RHEL / Amazon Linux / Fedora)
sudo dnf upgrade windows-app
Note
Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.
Exact fixes by distribution
Fedora 46 · diffoscope · FIXED · 335-1.fc46 · FEDORA-2026-e4c4cc0856 · source
sudo dnf upgrade --advisory=FEDORA-2026-e4c4cc0856
Verify at the official source NVD · 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.
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Related CVEs
- CVE-2026-59133 HIGH 8.8 UPGRADE Execution with unnecessary privileges in Microsoft High Performance Computing (HPC) Pack allows an authorized