CVE-2026-52756

MEDIUM
Published Jun 10, 2026 Modified Jun 12, 2026 CWE-22

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.

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CVSS v3.1 Score

4.8
MEDIUM
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:L

EPSS — Exploit Prediction

0.0046
Probability of exploitation
0.37%
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-22 Path Traversal

Affected Products

Vendor Product
nsa ghidra

References

Frequently Asked Questions

What is CVE-2026-52756? +
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. It has a CVSS v3.1 base score of 4.8 (MEDIUM).
How severe is CVE-2026-52756? +
CVE-2026-52756 has a CVSS v3.1 score of 4.8 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance. The EPSS score is 0.0046, placing it in the 0th percentile for exploitation probability.
What products are affected by CVE-2026-52756? +
CVE-2026-52756 affects products from nsa, specifically: ghidra. Check the affected products table above for specific version ranges.
How do I check if I'm vulnerable to CVE-2026-52756? +
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.

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