CVE-2026-55200
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2026
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
libssh2 - Out-of-Bounds Write via Unchecked packet_length in transport.c
libssh2 1.11.1, fixed in commit 97acf3d, contains an out-of-bounds write vulnerability in ssh2_transport_read() that fails to enforce upper bounds on packet_length field. Remote attackers can send crafted SSH packets with excessively large packet_length values to corrupt heap memory and achieve remote code execution.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
libssh2
- Vendor
- libssh2
- Product
- libssh2
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 1.11.1 | affected | semver | Unavailable | Unavailable | None listed |
| 1c3f1b7da588f2652260285529ec3c1f1125eb4e | affected | git | 97acf3dfda80c91c3a8c9f2372546301d4a1a7a8 | Unavailable | None listed |