CVE Tools
Sign in

CVE-2026-35387

Published: Apr 2, 2026Updated: Apr 27, 2026 Sources: CVE List NVDCWE-670
NVD MITRE
3.1CVSSLOW
EPSS Score
0.2%
Top 85.5%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
No Fix Available

Description

OpenSSH before 10.3 can use unintended ECDSA algorithms. Listing of any ECDSA algorithm in PubkeyAcceptedAlgorithms or HostbasedAcceptedAlgorithms is misinterpreted to mean all ECDSA algorithms.

CVSS Vector Breakdown

AV:NAC:HPR:LUI:NS:UC:NI:LA:N
Exploitability
AV:NAttack Vector
Network
AC:HAttack Complexity
High
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:LIntegrity
Low
A:NAvailability
None
Open in CVSS calculator →

Weaknesses

CWE-670

Affected Products

OpenSSHOpenBSD
LibraryLibrary
OSS Libraries / generic-library
opensshopenbsd
LibraryLibrary
OSS Libraries / generic-library
openbsdoss-projectCAOperating Systemsaka openbsd

Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.

References

https://www.openssh.org/releasenotes.html#10.3p1
openssh.org
https://marc.info/?l=openssh-unix-dev&m=177513443901484&w=2
marc.info
https://www.openwall.com/lists/oss-security/2026/04/02/3
openwall.com

Timeline

Published
Apr 2, 2026
Last Updated
Apr 27, 2026

Unlock Complete Vulnerability Intelligence

Get the full picture for CVE-2026-35387 and every CVE in our database. Create a free account — no credit card required.

Create Free Account
Plain-language analysis
Impact assessment and exploitation scenario in plain English
Attack graph visualization
Interactive attack path and kill chain mapping
Exploit details & PoC links
ExploitDB, Metasploit, GitHub PoCs with direct links
Nuclei scanner templates
Ready-to-use vulnerability scanner templates
Full remediation guide
Patch instructions, workarounds, and compliance impact
Interactive AI chat
Ask questions about this vulnerability in natural language
Related vulnerabilities
Semantically similar CVEs and attack patterns
REST API & MCP access
Integrate vulnerability data into your workflows