CVE-2026-18718: National Security Agency Ghidra

Ghidra Swift Demangler Analyzer Arbitrary Code Execution via Project State

CVSS 7.1 HighEPSS 0.0017 · 6th percentile

Published by the CVE Program (CNA: VulnCheck) at 3 Aug 2026, 16:54 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

Affected products, as the CNA wrote them
Vendor	Product	Versions
National Security Agency	Ghidra	affected before 12.1.2 semver unaffected 12.1.3 semver Other versions: unaffected

Identifiers

CVE-2026-18718

CNA

VulnCheck

Weakness (CWE)

CWE-427

Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

Severity and exploitation

Score	Rating	CVSS	Vector	Source
7.1	High	4.0	CVSS:4.0/AV:L/AC:H/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N	CNA (VulnCheck)Used for this record
7.0	High	3.1	CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H	CNA (VulnCheck)

CISA KEV Not listed.
EPSS 0.0017, the 6th percentile, on 6 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

This record came from the full history of the CVE Program, published 3 Aug 2026. New records show when each source confirmed them.

Sources

References from the CNA

github.com/NationalSecurityAgency/ghidra/security/advisories/GHSA-pcfh-853f-q3gh vendor-advisory
github.com/NationalSecurityAgency/ghidra/commit/c03a70d patch
github.com/NationalSecurityAgency/ghidra product
github.com/sn0x-sharma/CVE-2026-18718 technical-description
www.vulncheck.com/advisories/ghidra-swift-demangler-analyzer-arbitrary-code-execution-via-project-state third-party-advisory
sn0xs-organization.gitbook.io/sn0x-order.org/bb-web-hunt/critical/how-i-found-a-0-day-in-ghidra-shared-project-file-became-a-code-execution-vector technical-description

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.