CVE-2026-16678 (CVSS 4.5)

Description

IBM Power Systems Firmware FW1110.00 through FW1110.31, FW1120.00 through FW1120.01, and FW1060.00 through FW1060.81 could allow a remote authenticated attacker to cause a denial of service by exhausting connection resources due to improper resource management.

Is your site exposed to CVE-2026-16678?

Run a free security scan — no signup, results in seconds.

CVSS v3.1 Score

4.5

MEDIUM

CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

EPSS — Exploit Prediction

0.0021

Probability of exploitation

0.11%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-772 CWE-772

References

Other References

https://www.ibm.com/support/pages/node/7287270

Frequently Asked Questions

What is CVE-2026-16678? +

IBM Power Systems Firmware FW1110.00 through FW1110.31, FW1120.00 through FW1120.01, and FW1060.00 through FW1060.81 could allow a remote authenticated attacker to cause a denial of service by exhausting connection resources due to improper resource management. It has a CVSS v3.1 base score of 4.5 (MEDIUM).

How severe is CVE-2026-16678? +

CVE-2026-16678 has a CVSS v3.1 score of 4.5 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance. The EPSS score is 0.0021, placing it in the 0th percentile for exploitation probability.

How do I check if I'm vulnerable to CVE-2026-16678? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

Related Vulnerabilities

CVE-2026-35227

An unauthenticated remote attacker may exhaust all available TCP connections in the CODESYS Modbus TCP Server stack if a race …

CVE-2026-112200

P-Net before 1.0.3 does not release the Application Relationship (AR) and the RPC session when an RPC request is rejected …

CVE-2026-104112

A missing release of resources in the illumos name service cache daemon (nscd) allows a local user to exhaust kernel …

CVE-2026-59951

The MCP Python SDK, called mcp on PyPI, is a Python implementation of the Model Context Protocol (MCP). From 1.8.0 …

CVE-2025-3864

Hackney fails to properly release HTTP connections to the pool after handling 307 Temporary Redirect responses. Remote attackers can exploit …

CVE-2026-123635

Missing Release of Resource after Effective Lifetime vulnerability in elixir-grpc grpc_server allows a client to stall all later calls on …

CVE-2026-16678