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CVE-2009-4565

No known exploitation. EPSS puts it in the 84th percentile. A vendor fix is available.

CVSS 2.07.5HighEPSS percentile84th2.4% chance in 30 daysCISA KEVNot listedNo confirmed exploitation
No public exploit knownFixVendor fixNo build named by the sources
Check it yourself

OpenVAS · 12 checks

e.g. OID 1.3.6.1.4.1.25623.1.0.100415

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Published Updated Sources: CVE.org, NVD, BDU

NVD CVE.org

What to do

The vendor has published a fix. Version details are below where the sources state them.

  • SendmailAffected: ≤ 8.14.3Upgrade to: after 8.14.3Stated by: NVD
  • Сообщество свободного программного обеспечения Debian GNU/LinuxAffected: до 4Upgrade to: not statedStated by: BDU

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

sendmail before 8.14.4 does not properly handle a '\0' character in a Common Name (CN) field of an X.509 certificate, which (1) allows man-in-the-middle attackers to spoof arbitrary SSL-based SMTP servers via a crafted server certificate issued by a legitimate Certification Authority, and (2) allows remote attackers to bypass intended access restrictions via a crafted client certificate issued by a legitimate Certification Authority, a related issue to CVE-2009-2408.

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.

EPSS84th
CISA KEV

Not in the catalog. CISA has not confirmed exploitation.

Public exploits

No public exploit or proof of concept found in the sources we track.

EPSS

2.4% chance of exploitation activity in the next 30 days, which ranks it in the 84th percentile of scored CVEs.

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

Lifecycle

5 events over 6016 days, from the signal feeds we watch.

  1. OpenVAS check added
  2. Patch availablerecord updated
  3. 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:L/Au:N/C:P/I:P/A:P

Scored 7.5 by NVD.

How it is reached

  • Access Vector NetworkExploitable remotely over the network
  • Access Complexity LowNo special conditions required
  • Authentication NoneNo authentication required

Impact if exploited

  • Confidentiality PartialSome information is disclosed
  • Integrity PartialSome data can be modified
  • Availability PartialReduced performance or service disruption

Weaknesses

Sources

References in the record

And 19 more references. See all after sign-in

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