Is there a public PoC exploit available for CVE-2026-8784?

Yes, a public proof-of-concept exploit is available for CVE-2026-8784. Prioritise patching immediately. EPSS: 0.0%.

Is there a patch available for CVE-2026-8784?

Yes, a patch is available for CVE-2026-8784. Update the affected software to the latest version immediately.

cramfs-tools CVE-2026-8784

Q: What is the CVSS score of CVE-2026-8784?

CVE-2026-8784 has a CVSS 4.0 base score of 1.8 (Low). CVSS vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/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 exploitation probability: 0.0%.

EUVD-2026-30728 LOW

UNIX Symbolic Link (Symlink) Following (CWE-61)

2026-05-18 VulDB

GHSA-qv27-xjwp-hw6f

Information Disclosure

1.8

CVSS 4.0

CVSS VectorNVD

CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/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

Attack Vector

Local

Attack Complexity

Low

Privileges Required

High

User Interaction

None

Scope

Lifecycle Timeline

Severity Changed

May 18, 2026 - 04:22 NVD

MEDIUM LOW

CVSS changed

May 18, 2026 - 04:22 NVD

4.2 (MEDIUM) 1.8 (LOW)

Source Code Evidence Fetched

May 18, 2026 - 03:44 vuln.today

Analysis Generated

May 18, 2026 - 03:44 vuln.today

DescriptionNVD

A vulnerability was detected in npitre cramfs-tools up to 2.2. Affected is the function change_file_status of the file cramfsck.c. Performing a manipulation results in symlink following. The attack requires a local approach. The exploit is now public and may be used. The patch is named b4a3a695c9873f824907bd15659f2a6ac7667b4f. It is recommended to apply a patch to fix this issue.

AnalysisAI

Symlink following in cramfs-tools 2.2 and earlier allows local privileged attackers to manipulate file ownership or timestamps on arbitrary filesystem locations during cramfs extraction. The vulnerability exists in the change_file_status function in cramfsck.c, which performs metadata operations (chown, chmod, utime) without validating that extracted paths are not symbolic links pointing outside the extraction directory. …

Analysis

Detailed AI-generated intelligence summary covering attack vector, impact assessment, affected versions, remediation steps, and indicators of compromise.

POChttps://••••••••••.com/exploit

PATCHhttps://••••••••••.com/patch

ADVISORYhttps://••••••••••.com/advisory

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CVE-2026-8784 vulnerability details – vuln.today

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