Description
An issue was discovered in function _libssh2_packet_add in libssh2 1.10.0 allows attackers to access out of bounds memory.
Affected products
libssh2: libssh2
References7
- github.com/libssh2/libssh2/pull/476 Issue TrackingPatch
- github.com/libssh2/libssh2/pull/476 Issue TrackingPatch
- lists.debian.org/debian-lts-announce/2023/09/msg00006.html
- security.netapp.com/advisory/ntap-20231006-0002/
- lists.debian.org/debian-lts-announce/2023/09/msg00006.html
- security.netapp.com/advisory/ntap-20231006-0002/
- cert-portal.siemens.com/productcert/html/ssa-398330.html
Metrics
- CVSS 3.1
-
7.5
HIGH
Score source: NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - EPSS — exploit probability
- 1% percentile: 67 · as of 5 November 2026
- CWE
- CWE-787
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.