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Public proof of conceptFix available

CVE-2025-61787

A public proof of concept exists; no exploitation attested.

  • Published2025-10-08
  • Fixed in2.5.3
  • WeaknessCWE-77

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

Deno is a JavaScript, TypeScript, and WebAssembly runtime. Versions prior to 2.5.3 and 2.2.15 are vulnerable to Command Line Injection attacks on Windows when batch files are executed. In Windows, ``CreateProcess()`` always implicitly spawns ``cmd.exe`` if a batch file (.bat, .cmd, etc.) is being executed even if the application does not specify it via the command line. This makes Deno vulnerable to a command injection attack on Windows. Versions 2.5.3 and 2.2.15 fix the issue.

Timeline

dates in UTC
  1. 2025-10-0802:15CVE publishedNVD

Versions per branch

NVD · OSV
Denoversion to verify
BranchAffectedFixed in
2.x≥ 2.3.0, < 2.5.32.5.3
2.2≤ 2.2.15no fix published
deno
BranchAffectedFixed in
2.5< 2.5.22.5.2

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Products declared by the CNA1 product

As GitHub_M, the CNA that assigned this CVE, declared them in the CVE record; versions as written.

  • denoland deno
    Affected
    • = >= 2.3.0, < 2.5.3no fix stated
    • = < 2.2.15no fix stated

Source: the CNA record (CVE Program), © The MITRE Corporation,CVE Terms of UseCVE recordupdated 2025-10-08

Fix

  1. Update Deno to 2.5.3

Advisories and patches

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

Sources

  • NVDCVE recordread 2026-10-23
  • CISA-ADPSSVC decisionpoc2025-10-08
  • CNACVSS 3.18.1known since 2026-10-23
  • CNAweakness (CWE)CWE-77known since 2026-10-23
  • FIRST EPSSEPSS score2.1 %2026-11-08
  • OSVaffected packages—
  • GitHub AdvisoriesadvisoryHIGH2025-10-08

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Published
2025-10-08
Last Modified
2026-10-08
NVD status
Analyzed
GitHub Advisory
GHSA-m2gf-x3f6-8hq3

Frequently asked questions

What is CVE-2025-61787?

Deno is a JavaScript, TypeScript, and WebAssembly runtime. Versions prior to 2.5.3 and 2.2.15 are vulnerable to Command Line Injection attacks on Windows when batch files are executed. In Windows, ``CreateProcess()`` always implicitly spawns ``cmd.exe`` if a batch file (.bat, .cmd, etc.) is being executed even if the application does not specify it via the command line. This makes Deno vulnerable to a command injection attack on Windows. Versions 2.5.3 and 2.2.15 fix the issue.

Is CVE-2025-61787 actively exploited?

A proof-of-concept exploit exists for CVE-2025-61787, but active exploitation has not been confirmed at this time.

What is the CVSS score for CVE-2025-61787?

CVE-2025-61787 has a CVSS v3 base score of 8.1 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.

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Sources for this record