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PatchSiren cyber security CVE debrief

CVE-2026-52756 nationalsecurityagency CVE debrief

CVE-2026-52756 is a MEDIUM-severity vulnerability in Ghidra before 12.2. The vulnerability is caused by the IsfServer accepting TCP connections and passing client-supplied namespace strings directly to filesystem operations without validation. This allows remote attackers to connect to port 54321 and send crafted protobuf messages with traversal sequences to enumerate filesystem paths and probe arbitrary files.

Vendor
nationalsecurityagency
Product
ghidra
CVSS
MEDIUM 6.3
CISA KEV
Not listed in stored evidence
Original CVE published
2026-06-10
Original CVE updated
2026-07-14
Advisory published
2026-06-10
Advisory updated
2026-07-14

Who should care

Users of Ghidra before version 12.2

Technical summary

The vulnerability has a CVSS score of 6.3 and is classified as CWE-22. The affected product is Ghidra, a software reverse engineering (SRE) framework developed by the National Security Agency (NSA).

Defensive priority

MEDIUM

Recommended defensive actions

  • Upgrade Ghidra to version 12.2 or later
  • Restrict access to port 54321 to trusted sources only

Evidence notes

Evidence from the National Vulnerability Database (NVD) and the CVE.org record

Sources and references

Verified primary and authoritative sources

  • CVE-2026-52756 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-52756

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-52756 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-52756

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.