CVE-2026-32746

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2026-32746
telnetd in GNU inetutils through 2.7 allows an out-of-bounds write in the LINEMODE SLC (Set Local Characters) suboption handler because add_slc does not check whether the buffer is full.

9.8 /10

CVSS v3 : CRITICAL

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://lists.gnu.org/archive/html/bug-inetutils/2026-03/msg00031.html Exploit Vendor Advisory
https://www.openwall.com/lists/oss-security/2026/03/12/4 Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2026/03/14/1 Mailing List Third Party Advisory
https://github.com/watchtowrlabs/watchtowr-vs-telnetd-CVE-2026-32746 Third Party Advisory
Configurations

Configuration 1 (hide)

cpe:2.3:a:gnu:inetutils:*:*:*:*:*:*:*:*
History

05 May 2026, 18:15

Type Values Removed Values Added
First Time Gnu
Gnu inetutils
CPE cpe:2.3:a:gnu:inetutils:*:*:*:*:*:*:*:*
References () https://lists.gnu.org/archive/html/bug-inetutils/2026-03/msg00031.html - () https://lists.gnu.org/archive/html/bug-inetutils/2026-03/msg00031.html - Exploit, Vendor Advisory
References () https://www.openwall.com/lists/oss-security/2026/03/12/4 - () https://www.openwall.com/lists/oss-security/2026/03/12/4 - Mailing List, Third Party Advisory
References () http://www.openwall.com/lists/oss-security/2026/03/14/1 - () http://www.openwall.com/lists/oss-security/2026/03/14/1 - Mailing List, Third Party Advisory
References () https://github.com/watchtowrlabs/watchtowr-vs-telnetd-CVE-2026-32746 - () https://github.com/watchtowrlabs/watchtowr-vs-telnetd-CVE-2026-32746 - Third Party Advisory

23 Mar 2026, 14:16

Type Values Removed Values Added
References
  • () https://github.com/watchtowrlabs/watchtowr-vs-telnetd-CVE-2026-32746 -

19 Mar 2026, 14:16

Type Values Removed Values Added
References
  • {'url': 'https://github.com/jeffaf/cve-2026-32746', 'source': '134c704f-9b21-4f2e-91b3-4a467353bcc0'}

18 Mar 2026, 14:16

Type Values Removed Values Added
References
  • () https://github.com/jeffaf/cve-2026-32746 -

16 Mar 2026, 14:19

Type Values Removed Values Added
Summary
  • (es) telnetd en GNU inetutils hasta 2.7 permite una escritura fuera de límites en el gestor de la subopción LINEMODE SLC (Set Local Characters) porque add_slc no verifica si el búfer está lleno.
References
  • () http://www.openwall.com/lists/oss-security/2026/03/14/1 -

13 Mar 2026, 19:55

Type Values Removed Values Added
New CVE
Information

Published : 2026-03-13 19:55

Updated : 2026-05-05 18:15

NVD link : CVE-2026-32746

Mitre link : CVE-2026-32746

CVE.ORG link : CVE-2026-32746

JSON object : View

Products Affected

gnu

  • inetutils
CWE
CWE-120

Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')