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CVE-2021-46486

Public exploit available. Not confirmed exploited in the wild yet. No fix published yet.

CVSS 3.15.5MediumEPSS percentile48th0.6% chance in 30 daysCISA KEVNot listedNo confirmed exploitation
Public exploit: 1 sourceFixNone yetNo fix or workaround published

Published Updated Sources: CVE.org, NVD

NVD CVE.org

What to do

No fixed build or workaround is published yet. Limit exposure and watch for a patch.

Steps

Written by AI from the record
  1. Check whether any computers or products you use include Jsish v3.5.0.
  2. Do not open or run Jsish scripts from untrusted people or sources.
  3. No fixed version has been published; ask the vendor or maintainer for a supported update or workaround.
  4. Watch for unexpected Jsish crashes and retain the related error reports.
May need vendor or contractor work
Is your organisation exposed?Request an assessment to establish which checks fit your systems.

What it is

From the CVE record

Jsish v3.5.0 was discovered to contain a SEGV vulnerability via jsi_ArraySpliceCmd at src/jsiArray.c. This vulnerability can lead to a Denial of Service (DoS).

In plain language

Written by AI from the record

Jsish v3.5.0 can be crashed by a malicious script, so businesses using it should limit untrusted scripts and seek an update from the vendor.

Jsish v3.5.0 has a NULL-pointer/SEGV denial-of-service flaw in `jsi_ArraySpliceCmd` in `src/jsiArray.c`, triggered through local user interaction.

If you're affected

  • Application crashes
  • Interrupted business workflows
  • Service unavailability

Exploitation

Where each signal puts this CVE on the scale from published to confirmed exploited.

EPSS48th
Public exploit
CISA KEV

Not in the catalog. CISA has not confirmed exploitation.

Public exploits

1 source with a proof of concept or module.

Exploit links, PoCs and Metasploit modules after sign-in
EPSS

0.6% chance of exploitation activity in the next 30 days, which ranks it in the 48th percentile of scored CVEs.

Exploit Prediction Scoring System, FIRST.org. A probability, not a confirmation.

Lifecycle

4 events over 1499 days, from the signal feeds we watch.

  1. Public exploit / PoCsource: github-poc
  2. Record updated
  3. Publishedweakness classified

Affected products

And 1 more affected product. See all after sign-in

Technical detail

CVSS 3.1 vector

Open in the CVSS calculator

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

Scored 5.5 by NVD.

How it is reached

  • Attack Vector LocalRequires local access to the vulnerable system (e.g. local login, malicious file)
  • Attack Complexity LowNo special conditions — the attack can be reliably reproduced
  • Privileges Required NoneNo authentication required — anyone can exploit this
  • User Interaction RequiredA user must click a link, open a file, or perform some action

Scope

  • Scope UnchangedImpact is limited to the vulnerable component itself

Impact if exploited

  • Confidentiality NoneNo confidentiality impact
  • Integrity NoneNo integrity impact
  • Availability HighTotal denial of service — the component is completely unavailable

Weaknesses

Sources

References in the record

Watch the software you run.

My Stack ranks new CVEs for your products by real-world exploitation, so the next serious one reaches you without reading every advisory.

We'll flag the next CVE, public exploit or patch for Jsish, not every advisory. This one: public exploit.