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CVE-2015-7599 Windriver CVE debrief

CVE-2015-7599 is a high-severity Wind River VxWorks issue in the RPC authentication path. According to the CVE/NVD record, an integer overflow in _authenticate() within svc_auth.c can be reached when the Remote Procedure Call (RPC) protocol is enabled, allowing a remote attacker to crash the device and, in some cases, possibly execute arbitrary code. The published record lists VxWorks versions 5.5 through 6.9.4.1 as affected.

Vendor
Windriver
Product
CVE-2015-7599
CVSS
HIGH 8.1
CISA KEV
Not listed in stored evidence
Original CVE published
2017-02-07
Original CVE updated
2026-05-13
Advisory published
2017-02-07
Advisory updated
2026-05-13

Who should care

Owners and operators of embedded or real-time systems running Wind River VxWorks, especially deployments with RPC enabled. Security teams managing OT, industrial, networking, storage, or other embedded appliances should treat this as relevant if any affected VxWorks version is in use.

Technical summary

The vulnerability is classified by NVD as CWE-190 (integer overflow). The issue is in the _authenticate function in svc_auth.c and is reachable over the network when RPC is enabled. NVD assigns CVSS 3.0 AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H, reflecting a remotely reachable flaw with potentially severe confidentiality, integrity, and availability impact if successfully exploited. The supplied corpus does not provide a fixed version, patch identifier, or exploit validation details.

Defensive priority

High. Prioritize any VxWorks deployments exposed to RPC, because the vulnerable path is network-reachable and can affect multiple product versions. Even though the attack complexity is rated high, the potential impact and breadth of affected versions warrant prompt inventory and mitigation work.

Recommended defensive actions

  • Inventory all Wind River VxWorks systems and confirm whether RPC is enabled.
  • Identify systems running VxWorks 5.5 through 6.9.4.1 and treat them as potentially affected until verified otherwise.
  • Apply the vendor's guidance from the Wind River advisory referenced in the CVE record and any product-specific mitigations from downstream vendors such as NetApp.
  • If RPC is not operationally required, disable or restrict it to reduce exposure.
  • Segment and tightly firewall affected embedded devices so RPC is not reachable from untrusted networks.
  • Monitor vendor and product advisories for fixed releases or additional remediation guidance.
  • Validate assets and remediation status using the official CVE and NVD records in your vulnerability management workflow.

Evidence notes

This debrief is based only on the supplied CVE/NVD corpus and referenced advisories. The CVE record states the affected condition, impacted VxWorks versions, and the RPC prerequisite. NVD provides the CWE-190 classification, CVSS vector, and affected CPE criteria. The referenced Wind River, NetApp, SecurityFocus, and technical slide sources are listed in the CVE record but were not independently expanded beyond the supplied metadata.

Official resources

The CVE record was published on 2017-02-07 and last modified on 2026-05-13, as reflected in the supplied CVE/NVD metadata. The debrief uses the publication timestamp for timing context and does not treat modification time as the original CV