CVE-2025-26466
Essential information
- Published
- 28/02/2025 22:15
- Modified
- 06/03/2025 16:53
- Author
- —
- Creator
- —
- CVSS
- 5.9 MEDIUM (v3.1)
- CISA KEV
- No
- CWE
- —
- CVSS vector
-
—
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H—
CVSS metrics
- Access vector
- —
- Access complexity
- —
- Authentication
- —
- Confidentiality impact
- —
- Integrity impact
- —
- Availability impact
- —
- Exploitability
- —
- Remediation level
- —
- Report confidence
- —
- Temporal score
- —
- Attack vector
- NETWORK
- Attack complexity
- HIGH
- Privileges required
- NONE
- User interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality impact
- NONE
- Integrity impact
- NONE
- Availability impact
- HIGH
- Exploit code maturity
- —
- Remediation level
- —
- Report confidence
- —
- Temporal score
- —
- Attack vector
- —
- Attack complexity
- —
- Attack requirements
- —
- Privileges required
- —
- User interaction
- —
- Confidentiality (V)
- —
- Confidentiality (S)
- —
- Integrity (V)
- —
- Integrity (S)
- —
- Availability (V)
- —
- Availability (S)
- —
- Exploit maturity
- —
Description
A flaw was found in the OpenSSH package. For each ping packet the SSH server receives, a pong packet is allocated in a memory buffer and stored in a queue of packages. It is only freed when the server/client key exchange has finished. A malicious client may keep sending such packages, leading to an uncontrolled increase in memory consumption on the server side. Consequently, the server may become unavailable, resulting in a denial of service attack.
NVD status
- Status
- Analyzed — CVE has been recently published to the CVE List and has been received by the NVD.
- Source
- [email protected]
- NVD
- View on NVD
Affected products (CPE)
| Product | CPE |
|---|---|
| openbsd / openssh | cpe:2.3:a:openbsd:openssh:9.5:p1:*:*:*:*:*:* |
| openbsd / openssh | cpe:2.3:a:openbsd:openssh:9.6:-:*:*:*:*:*:* |
| openbsd / openssh | cpe:2.3:a:openbsd:openssh:9.6:p1:*:*:*:*:*:* |
| openbsd / openssh | cpe:2.3:a:openbsd:openssh:9.7:-:*:*:*:*:*:* |
| openbsd / openssh | cpe:2.3:a:openbsd:openssh:9.7:p1:*:*:*:*:*:* |
| openbsd / openssh | cpe:2.3:a:openbsd:openssh:9.8:-:*:*:*:*:*:* |
| openbsd / openssh | cpe:2.3:a:openbsd:openssh:9.8:p1:*:*:*:*:*:* |
| openbsd / openssh | cpe:2.3:a:openbsd:openssh:9.9:-:*:*:*:*:*:* |
| openbsd / openssh | cpe:2.3:a:openbsd:openssh:9.9:p1:*:*:*:*:*:* |
| canonical / ubuntu linux | cpe:2.3:o:canonical:ubuntu_linux:24.04:*:*:*:lts:*:*:* |
| canonical / ubuntu linux | cpe:2.3:o:canonical:ubuntu_linux:24.10:*:*:*:*:*:*:* |
| debian / debian linux | cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:* |
| debian / debian linux | cpe:2.3:o:debian:debian_linux:12.0:*:*:*:*:*:*:* |
| debian / debian linux | cpe:2.3:o:debian:debian_linux:13.0:*:*:*:*:*:*:* |