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VulnerabilityPublished Updated

CVE-2025-59778: F5 F5OS – Chassis · Unthrottled Resource Allocation

Affects F5 F5OS – ChassisSource CVE Database V5

0

Not known to be exploited · CVSS 7.5 High.

Data as of 26 Oct 2026, 17:16 UTC

CVSS 3.1 base score
7.5High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.3% chance of exploitation in 30 days – higher than 26% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 15 Oct 2025

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

What to do

Affected software

ProductAffectedFixed in
F5 F5OS - ChassisAffected
  • =1.8.0
  • =1.6.0
Fixed in–

AI-suggested

To mitigate CVE-2025-59778, organizations should first verify if their F5OS chassis devices are running affected versions 1.6.0 or 1.8.0 and have the Allowed IP Addresses feature enabled on the F5OS-C partition control plane. Immediate steps include disabling the Allowed IP Addresses feature if feasible, to prevent exploitation until a patch or update is available. Network segmentation and access control lists (ACLs) should be employed to restrict traffic sources that can reach the control plane, limiting exposure to potentially malicious undisclosed traffic. Monitoring and alerting on unusual container terminations or control plane instability can provide early detection of exploitation attempts. Organizations should engage with F5 support to obtain any available patches or recommended configuration changes. Planning for an upgrade to a supported and patched version of F5OS is critical, especially since versions beyond End of Technical Support are not evaluated and may remain vulnerable. Additionally, implementing rate limiting or traffic shaping at upstream network devices can help reduce the risk of resource exhaustion attacks. Regular vulnerability assessments and penetration testing focused on network infrastructure devices will help identify and remediate similar risks proactively.

Description

When the Allowed IP Addresses feature is configured on the F5OS-C partition control plane, undisclosed traffic can cause multiple containers to terminate.   Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

References

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