CVE-2009-0641

Freebsd vulnerability

CVSS

9.3

EPSS

9.4%

EPSS pct

95th

Exploited

No known

sys_term.c in telnetd in FreeBSD 7.0-RELEASE and other 7.x versions deletes dangerous environment variables with a method that was valid only in older FreeBSD distributions, which might allow remote attackers to execute arbitrary code by passing a crafted environment variable from a telnet client, as demonstrated by an LD_PRELOAD value that references a malicious library.

Affected vendor

Freebsd

Affected product

Freebsd

CVSS vector

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

Weakness type (CWE)

CWE-16
CWE-264 — Permissions, Privileges, and Access Controls

Published

2009-02-20

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, medium attack complexity, requiring no authentication. Successful exploitation leads to complete impact to confidentiality, complete impact to integrity, complete impact to availability.

Its EPSS score of 9.4% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 95% of all scored CVEs.

Check your external exposure to CVE-2009-0641

Confirm whether Freebsd Freebsd is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2009-0641.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2009-0641

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2009-0641 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

Run a free external exposure scan

Are you exposed to CVE-2009-0641?

Run an instant, non-intrusive external scan to check your attack surface for CVE-2009-0641.

Start free scan

No credit card. Agentless.

Related vulnerabilities

HIGH

CVE-2015-3103

Flash Player vulnerability