7.5

CVE-2005-0468: ncsa telnet

CVSS: 7.5v2.0HighModified
AliasesDEBIAN-CVE-2005-0468
Published 28-03-2005Last modified 07-08-2024
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Vulnerability summary

CVE-2005-0468 is a high (CVSS 7.5) vulnerability in ncsa telnet. EPSS estimates a 27.07% chance of exploitation in the next 30 days, higher than 98% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
45/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.5/10
010
High · v2.0 (NVD)
EPSS score
27.07%
0%100%
High · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1exploit-database

Advisory lineage

Upstream 0 · Downstream 4
DSA-703-1DSA-731-1RHSA-2005:327RHSA-2005:330

Timeline

  1. 28-03-2005
    PublishedVulnerability first disclosed.
  2. 07-08-2024
    Last modifiedVulnerability information updated.

Description

Heap-based buffer overflow in the env_opt_add function in telnet.c for various BSD-based Telnet clients allows remote attackers to execute arbitrary code via responses that contain a large number of characters that require escaping, which consumers more memory than allocated.

CVSS metrics

1 score · 1 source · 1 version

EPSS trend

Probability

27.07%

Chance of exploitation in the next 30 days

Percentile

98%

Versus all other CVEs

30-day change

0.00 pp

From 27.07% on 19-09-2026

19-09-202619-10-2026
EPSS score
27.07%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

1 found
  • exploit-databasedoslinuxVerified

    Multiple Vendor Telnet Client - Env_opt_add Heap Buffer Overflow

    Maturity: poc

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Debian1 product
  • krb5< 1.3.6-2
Ncsa1 product

2 vendors · 2 products

References

19 links
Show all 19 references