Linux · 
Red Hat · Security advisory · May 27, 2026
Red Hat · Security advisory · May 27, 2026RHSA-2026:18683: Security update for 3 packages
RHSA-2026:18683, released May 27, 2026, fixes 10 CVEs across 3 products. None of them is reported as exploited. Patch Radar priority: High.
High
CVEs closed
10
None rated Critical
Exploited
0
None reported
Highest CVSS
8.2
Base score, 0 to 10
Highest EPSS
0.0063
50th percentile
Priority of the 10 CVEs
Patch now 0
Urgent 0
High 1
Routine 9
Fixed package versions
| Product | Release | Fixed in |
|---|---|---|
| libssh | RHEL 9 | 0:0.10.4-18.el9 |
| libssh-config | RHEL 9 | 0:0.10.4-18.el9 |
| libssh-devel | RHEL 9 | 0:0.10.4-18.el9 |
CVEs this fix closes
| Priority | CVE | Title | CVSS | EPSS | Exploitation |
|---|---|---|---|---|---|
| High | CVE-2026-0966 | Libssh: buffer underflow in ssh_get_hexa() on invalid input | 8.2 | 0.0060 | None reported |
| Routine | CVE-2025-5351 | Libssh: double free vulnerability in libssh key export functions | 6.5 | 0.0063 | None reported |
| Routine | CVE-2026-0968 | libssh: A flaw was found in libssh in which a malicious SFTP (SSH File Transfer Protocol) server can exploit this by sending... | 6.5 | 0.0046 | None reported |
| Routine | CVE-2025-8277 | Libssh: memory exhaustion via repeated key exchange in libssh | 6.5 | 0.0043 | None reported |
| Routine | CVE-2026-0964 | Libssh: improper sanitation of paths received from scp servers | 6.5 | 0.0042 | None reported |
| Routine | CVE-2025-8114 | : null pointer dereference in libssh kex session id calculation | 6.5 | 0.0026 | None reported |
| Routine | CVE-2026-0967 | Libssh: libssh: denial of service via inefficient regular expression processing | 6.5 | 0.0023 | None reported |
| Routine | CVE-2025-4878 | Libssh: use of uninitialized variable in privatekey_from_file() | 6.5 | 0.0023 | None reported |
| Routine | CVE-2025-4877 | Libssh: write beyond bounds in binary to base64 conversion functions | 6.5 | 0.0020 | None reported |
| Routine | CVE-2026-0965 | Libssh: libssh: denial of service via improper configuration file handling | 6.5 | 0.0016 | None reported |
Showing 1 to 10 of 10
1
Patch Radar data is free to use with attribution. Terms and how to credit it.
Product names, logos and trademarks shown on Patch Radar belong to their respective owners. They are used only to identify the software each security fix applies to and to help readers find their platform. Their use does not imply any affiliation with, or endorsement by, those owners, and Patchblox is not affiliated with any of them.