7.5
CVE-2026-59850
- EPSS 0.32%
- Veröffentlicht 21.07.2026 14:15:58
- Zuletzt bearbeitet 17.08.2026 22:17:15
- CVE-Watchlists
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Libssh: libssh: use-after-free via data callbacks on closed channels
A flaw was found in libssh. If data packets are processed after a channel is closed, channel data callbacks can be invoked after the associated data has already been freed, leading to crashes or possible use-after-free conditions.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Redhat ≫ Hardened Images Version-
Redhat ≫ Enterprise Linux Version8.0
Redhat ≫ Enterprise Linux Version9.0
Redhat ≫ Enterprise Linux Version10.0
VulnDex Vulnerability Enrichment
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Login| Typ | Quelle | Score | Percentile |
|---|---|---|---|
| EPSS | FIRST.org | 0.32% | 0.25 |
| Quelle | Base Score | Exploit Score | Impact Score | Vector String |
|---|---|---|---|---|
| NIST | 7.5 | 3.9 | 3.6 |
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
|
| RedHat | 4.3 | 2.8 | 1.4 |
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
|
CWE-416 Use After Free
The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.
https://access.redhat.com/security/cve/CVE-2026-59850
https://bugzilla.redhat.com/show_bug.cgi?id=2498183
https://access.redhat.com/errata/RHSA-2026:42922
https://access.redhat.com/errata/RHSA-2026:55855