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CVE-2015-4467

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

CVSS 2.04.3MediumEPSS percentile73rd1.4% 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.

  • Libmspack Project LibmspackAffected: ≤ 0.4-3Upgrade to: after 0.4-3Stated by: NVD

Versions as the sources state them. Full version matrix after sign-in

Check it yourselfA free OpenVAS check exists for this CVE. Run it against your hosts.Is your organisation exposed?Request an assessment to establish which checks fit your systems.

What it is

From the CVE record

The chmd_init_decomp function in chmd.c in libmspack before 0.5 does not properly validate the reset interval, which allows remote attackers to cause a denial of service (divide-by-zero error and application crash) via a crafted CHM file.

In plain language

No plain-language summary for this CVE yet.

Exploitation

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

EPSS73rd
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

1.4% chance of exploitation activity in the next 30 days, which ranks it in the 73rd percentile of scored CVEs.

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

Lifecycle

5 events over 4032 days, from the signal feeds we watch.

  1. OpenVAS check added
  2. Record updated
  3. Public exploit / PoCsource: other
  4. Publishedweakness classified

Affected products

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

Technical detail

CVSS 2.0 vector

Open in the CVSS calculator

AV:N/AC:M/Au:N/C:N/I:N/A:P

Scored 4.3 by NVD.

How it is reached

  • Access Vector NetworkExploitable remotely over the network
  • Access Complexity MediumSome conditions must be met
  • Authentication NoneNo authentication required

Impact if exploited

  • Confidentiality NoneNo confidentiality impact
  • Integrity NoneNo integrity impact
  • Availability PartialReduced performance or service disruption

Weaknesses

Sources

References in the record

And 1 more reference. See all after sign-in

Watch the software you run.

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