CVE-2026-52756

Name: CVE-2026-52756
Creator: NVD / NIST
Published: 2026-06-10T14:16:35.88+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.3/10EPSS 0.46%

Last modified Jun 17, 2026

CVE-2026-52756 is a medium-severity vulnerability rated 6.3/10 on the CVSS scale. Ghidra before 12.2 contains an unauthenticated path traversal vulnerability in the IsfServer that accepts TCP connections and passes client-supplied namespace strings directly to filesystem operations without validation. Remote attackers can connect to port 54321 and send crafted protobuf messages with traversal sequences to enumerate filesystem paths and probe arbitrary files.. EPSS estimates a 0.46% chance of exploitation in the next 30 days.

Description

Ghidra before 12.2 contains an unauthenticated path traversal vulnerability in the IsfServer that accepts TCP connections and passes client-supplied namespace strings directly to filesystem operations without validation. Remote attackers can connect to port 54321 and send crafted protobuf messages with traversal sequences to enumerate filesystem paths and probe arbitrary files.

Metrics

CVSS 3.1

6.5/10

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

CVSS 4.0

6.3/10

CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS Probability

0.46%

36.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-22

Affected Software

Vendor	Product	Versions
Nsa	Ghidra	<= 12.1.2

References

https://github.com/NationalSecurityAgency/ghidra/security/advisories/GHSA-8pr2-46mf-v2r2Exploit, Vendor Advisory
https://www.vulncheck.com/advisories/ghidra-unauthenticated-path-traversal-in-debugger-isf-serverThird Party Advisory
https://github.com/NationalSecurityAgency/ghidra/security/advisories/GHSA-8pr2-46mf-v2r2Exploit, Vendor Advisory

Timeline

Published: Jun 10, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-52756?

How severe is CVE-2026-52756?

CVE-2026-52756 has a CVSS score of 6.3/10 (MEDIUM severity). The EPSS model estimates a 0.46% probability of exploitation in the next 30 days.

How do I fix CVE-2026-52756?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-52756?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST