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CVE Vulnerability Details :
CVE-2026-3731
PUBLISHED
More InfoOfficial Page
Assigner-VulDB
Assigner Org ID-1af790b2-7ee1-4545-860a-a788eba489b5
View Known Exploited Vulnerability (KEV) details
Published At-08 Mar, 2026 | 10:32
Updated At-11 Mar, 2026 | 19:50
Rejected At-
▼CVE Numbering Authority (CNA)
libssh SFTP Extension Name sftp.c sftp_extensions_get_data out-of-bounds

A weakness has been identified in libssh up to 0.11.3. The impacted element is the function sftp_extensions_get_name/sftp_extensions_get_data of the file src/sftp.c of the component SFTP Extension Name Handler. Executing a manipulation of the argument idx can lead to out-of-bounds read. The attack may be performed from remote. Upgrading to version 0.11.4 and 0.12.0 is sufficient to resolve this issue. This patch is called 855a0853ad3abd4a6cd85ce06fce6d8d4c7a0b60. You should upgrade the affected component.

Affected Products
Vendor
n/a
Product
libssh
CPEs
  • cpe:2.3:a:libssh:libssh:*:*:*:*:*:*:*:*
Modules
  • SFTP Extension Name Handler
Versions
Affected
  • 0.11.0
  • 0.11.1
  • 0.11.2
  • 0.11.3
Unaffected
  • 0.11.4
  • 0.12.0
Problem Types
TypeCWE IDDescription
CWECWE-125Out-of-Bounds Read
CWECWE-119Memory Corruption
Type: CWE
CWE ID: CWE-125
Description: Out-of-Bounds Read
Type: CWE
CWE ID: CWE-119
Description: Memory Corruption
Metrics
VersionBase scoreBase severityVector
4.06.9MEDIUM
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X
3.15.3MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:X/RL:O/RC:C
3.05.3MEDIUM
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:X/RL:O/RC:C
2.05.0N/A
AV:N/AC:L/Au:N/C:N/I:N/A:P/E:ND/RL:OF/RC:C
Version: 4.0
Base score: 6.9
Base severity: MEDIUM
Vector:
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X
Version: 3.1
Base score: 5.3
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:X/RL:O/RC:C
Version: 3.0
Base score: 5.3
Base severity: MEDIUM
Vector:
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:X/RL:O/RC:C
Version: 2.0
Base score: 5.0
Base severity: N/A
Vector:
AV:N/AC:L/Au:N/C:N/I:N/A:P/E:ND/RL:OF/RC:C
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Advisory disclosed2026-03-07 00:00:00
VulDB entry created2026-03-07 01:00:00
VulDB entry last update2026-03-07 19:00:46
Event: Advisory disclosed
Date: 2026-03-07 00:00:00
Event: VulDB entry created
Date: 2026-03-07 01:00:00
Event: VulDB entry last update
Date: 2026-03-07 19:00:46
Replaced By
Rejected Reason
References
HyperlinkResource
https://vuldb.com/?id.349709
vdb-entry
technical-description
https://vuldb.com/?ctiid.349709
signature
permissions-required
https://vuldb.com/?submit.767120
third-party-advisory
https://www.libssh.org/security/advisories/libssh-2026-sftp-extensions.txt
related
https://gitlab.com/libssh/libssh-mirror/-/commit/855a0853ad3abd4a6cd85ce06fce6d8d4c7a0b60
patch
https://www.libssh.org/files/0.12/libssh-0.12.0.tar.xz
patch
Hyperlink: https://vuldb.com/?id.349709
Resource:
vdb-entry
technical-description
Hyperlink: https://vuldb.com/?ctiid.349709
Resource:
signature
permissions-required
Hyperlink: https://vuldb.com/?submit.767120
Resource:
third-party-advisory
Hyperlink: https://www.libssh.org/security/advisories/libssh-2026-sftp-extensions.txt
Resource:
related
Hyperlink: https://gitlab.com/libssh/libssh-mirror/-/commit/855a0853ad3abd4a6cd85ce06fce6d8d4c7a0b60
Resource:
patch
Hyperlink: https://www.libssh.org/files/0.12/libssh-0.12.0.tar.xz
Resource:
patch
▼Authorized Data Publishers (ADP)
CISA ADP Vulnrichment
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
Details not found