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CVE-2026-58051: libssh2 through 1.11.1 (inclusive), 0 through 1.11.1
CVE-2026-58051. CVSS 3.1 base score 6.5 (MEDIUM, Vendor/CNA). EPSS 0.00277 (percentile 0.19107), scored 24-Oct-2026.
Affected technology
libssh2 · through 1.11.1 (inclusive)
libssh2
libssh2 · 0 through 1.11.1
libssh2
Description’s affected range: through 1.11.1 grows its publickey list with SSH2_REALLOC but does not zero-initialize new entries before parsing populates them
Component: Not specified by the source
Attack conditions (Vendor/CNA, CVSS 4.0): Network (remote) · No privileges required · No user interaction required
What an attacker can do
Vendor/CNA’s CVSS 4.0 assessment (base score 8.3/10) rates confidentiality impact as none; integrity impact as low; availability impact as high. The description does not specify what an attacker can achieve beyond these rated impacts.
- CWE
- CWE-908
- CCR priority
- 26.1 /100 (P4)
- CVSS 3.1
- 6.5 /10 · CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:H · Vendor/CNA
- EPSS
- 0.00277 · percentile 0.19891 · 2026-10-25
- KEV
- no
Provenance
- FIRST EPSS daily exploit-probability · Source record · observed 2026-10-25 19:52:47.952465+00:00 UTC
- NVD CVE API 2.0 · Source record · observed 2026-10-25 19:51:06.643138+00:00 UTC
Stable permalink: https://cybercodered.org/item/cve-cve-2026-58051.html