CVE-2026-22319

Stack-Based Buffer Overflow in File Install Parameter Handling

4.9 Medium

A stack-based buffer overflow in the device's file installation workflow allows a high-privileged attacker to send oversized POST parameters that overflow a fixed-size stack buffer within an internal process, resulting in a DoS attack.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: High
User interaction: None

What an attacker can affect

Confidentiality: None
Integrity: None
Availability: High

Exploit likelihood

0.36%Up 0.3 points since Mar 18, 2026

What each source reports

CVE List Score used 4.9

Stack-Based Buffer Overflow in File Install Parameter Handling

Record: CVE-2026-22319
CVSS 3.1: 4.9 MediumCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
Weakness: CWE-121
Updated: 2026-11-02

EUVDEUVD-2026-12788 4.9

Record: EUVD-2026-12788
CVSS 3.1: 4.9 MediumCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
Updated: 2026-11-02

GitHub AdvisoriesGHSA-7hqw-92qf-g6mp 4.9

A stack-based buffer overflow in the device's file installation workflow allows a high-privileged...

Record: GHSA-7hqw-92qf-g6mp
CVSS 3.1: 4.9 MediumCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
Weakness: CWE-121
Updated: 2026-11-02

NVD 4.9

Record: CVE-2026-22319
CVSS 3.1: 4.9 MediumCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
Weakness: CWE-121
Updated: 2026-11-02

Affected products

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History

History
Recorded	Changed	Sources
Nov 2, 2026	first indexed	CVE List, EUVD, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2026-22319 is a medium vulnerability (CVSS 4.9) in Phoenix Contact Fl Nat 2008, published March 18, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.36%, the 30th percentile. No source names a fixed version.