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CVE-2005-0469

26
FAUCET Score

CVE-2005-0469 describes a buffer overflow vulnerability in the slc_add_reply function of various BSD-based Telnet clients, including ncsa telnet. This flaw allows remote attackers to execute arbitrary code by sending a crafted reply containing a large number of Set Local Character (SLC) commands. With a CVSS score of 7.5, this vulnerability is considered highly severe, enabling unauthenticated attackers to achieve partial confidentiality, integrity, and availability impacts over the network with low attack complexity. Despite its age and severity, there is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
All Versions ImpactedCPE matchmatch criteria
cpe:2.3:a:ncsa:telnet:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

7.5HIGH

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

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
6.4
CvssVersion
2.0

Exploit Intelligence

EPSS Score
8.63%
Probability of exploitation in next 30 days
EPSS Percentile
94.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0863 is in the 91st percentile among its peer group of 51,485 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (7)

debianpatch availablevia nvd_reference
View patch
microsoftpatch availablevia msrc
Product: 19638-16823
microsoftpatch availablevia msrc
Product: cbl2 telnet on CBL Mariner 2.0
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 4Fixed in: krb5-0:1.3.4-12
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 3Fixed in: telnet-1:0.17-26.EL3.2
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 3Fixed in: krb5-0:1.2.7-42
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 4Fixed in: telnet-1:0.17-31.EL4.2
View patch

Vendor Advisories (2)

redhatCVE-2005-0469Important

security flaw

Mar 28, 2005
microsoft2005-Mar/CVE-2005-0469Important

Buffer overflow in the slc_add_reply function in various BSD-based Telnet clients, when handling LINEMODE suboptions, allows remote attackers to execute arbitrary code via a reply with a large number of Set Local Character (SLC) commands.

Mar 2, 2005

References

ftp.freebsd.org / pub/FreeBSD/CERT/advisories/FreeBSD-SA-05:01.telnet.asc
Vendor Advisory
patches.sgi.com / support/free/security/advisories/20050405-01-P
Patch
secunia.com / advisories/14745
secunia.com / advisories/17899
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9708
sunsolve.sun.com / search/document.do
sunsolve.sun.com / search/document.do
sunsolve.sun.com / search/document.do
PatchVendor Advisory
sunsolve.sun.com / search/document.do
web.mit.edu / kerberos/advisories/MITKRB5-SA-2005-001-telnet.txt
PatchVendor Advisory
debian.de / security/2005/dsa-731
debian.org / security/2005/dsa-697
PatchVendor Advisory
debian.org / security/2005/dsa-699
PatchVendor Advisory
debian.org / security/2005/dsa-703
PatchVendor Advisory
gentoo.org / security/en/glsa/glsa-200503-36.xml
PatchVendor Advisory
idefense.com / application/poi/display
PatchVendor Advisory
kb.cert.org / vuls/id/291924
Third Party AdvisoryUS Government Resource
mandriva.com / security/advisories
redhat.com / support/errata/RHSA-2005-327.html
PatchVendor Advisory
redhat.com / support/errata/RHSA-2005-330.html
PatchVendor Advisory
securityfocus.com / bid/12918
ubuntulinux.org / usn/usn-224-1