EUVD-2026-64311
GHSA-5qq7-x27p-hfq4
Severity by source
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/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
Attacker needs no privileges to craft the restore file; victim must actively invoke --restore (UI:R); all impacts remain within the victim's own user context (S:U).
Primary rating from Vendor (VulnCheck).
CVSS VectorVendor: VulnCheck
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/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
Lifecycle Timeline
3DescriptionCVE.org
hashcat fails to restrict command-line options when parsing restore files, allowing attackers to inject output-redirecting options like --outfile and --potfile-path. Attackers can craft restore files with malicious options to append attacker-controlled content to arbitrary files, enabling code execution when targeting shell startup files.
AnalysisAI
Option injection in hashcat's restore file parser (all versions through 7.1.2) allows an attacker who delivers a crafted restore file to append attacker-controlled content to arbitrary files on the victim's system. When a user runs 'hashcat --restore' against the malicious file, output-redirecting options such as --outfile and --potfile-path are accepted from the restore file without restriction, enabling writes to shell startup scripts and subsequent code execution at the victim's privilege level. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | The victim must run 'hashcat --restore' (or the legacy one-step equivalent) against a restore file that has been crafted or modified by an attacker prior to the session resumption. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | CVSS 4.0 scores this at 8.5 with a local attack vector (AV:L), low complexity (AC:L), no privilege requirement on the attacker's part (PR:N), and passive user interaction (UI:P), reflecting that exploitation is contingent on the victim actively running hashcat against a tampered restore file. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | Build hashcat from commit fcae69f2438ff8eae0dc8e206b78067a1e465ed4 or a later tagged release once published at https://github.com/hashcat/hashcat, as the upstream fix is available per vendor (patch reference confirmed). … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, notify hashcat users to avoid processing restore files from untrusted sources and flag any unsolicited restore file delivery. …
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External POC / Exploit Code
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