A vulnerability described as problematic has been identified in OpenSSH up to 10.2 . The affected element is an unknown function. The manipulation results in incorrect control flow. This vulnerability is cataloged as CVE-2026-35387 . The attack may be launched remotely. There is no exploit available. Upgrading the affected component is recommended.
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✦ AI Summary· Claude Sonnet
VDB-354955 · CVE-2026-35387 · GCVE-0-2026-35387
OPENSSH UP TO 10.2 CONTROL FLOW
HISTORYDIFFRELATEJSONXMLCTI
CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score
3.0 $5k-$25k 0.43+
Summaryinfo
A vulnerability classified as problematic has been found in OpenSSH up to 10.2. The impacted element is an unknown function. This manipulation causes control flow. This vulnerability is registered as CVE-2026-35387. Remote exploitation of the attack is possible. No exploit is available. It is recommended to upgrade the affected component.
Detailsinfo
A vulnerability has been found in OpenSSH up to 10.2 and classified as problematic. Affected by this vulnerability is some unknown processing. The manipulation with an unknown input leads to a control flow vulnerability. The CWE definition for the vulnerability is CWE-670. The code contains a control flow path that does not reflect the algorithm that the path is intended to implement, leading to incorrect behavior any time this path is navigated. As an impact it is known to affect integrity. The summary by CVE is:
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.
It is possible to read the advisory at openssh.org. This vulnerability is known as CVE-2026-35387 since 04/02/2026. The exploitation appears to be difficult. The attack can be launched remotely. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 04/02/2026).
Upgrading to version 10.3 eliminates this vulnerability.
Productinfo
Type
Connectivity Software
Name
OpenSSH
Version
10.0
10.1
10.2
License
open-source
CPE 2.3info
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CPE 2.2info
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CVSSv4info
VulDB Vector: 🔒
VulDB Reliability: 🔍
CVSSv3info
VulDB Meta Base Score: 3.1
VulDB Meta Temp Score: 3.0
VulDB Base Score: 3.1
VulDB Temp Score: 3.0
VulDB Vector: 🔒
VulDB Reliability: 🔍
CNA Base Score: 3.1
CNA Vector (MITRE): 🔒
CVSSv2info
Vector Complexity Authentication Confidentiality Integrity Availability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍
Exploitinginfo
Class: Control flow
CWE: CWE-670
CAPEC: 🔒
ATT&CK: 🔒
Physical: No
Local: No
Remote: Yes
Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒
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Threat Intelligenceinfo
Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍
Countermeasuresinfo
Recommended: Upgrade
Status: 🔍
0-Day Time: 🔒
Upgrade: OpenSSH 10.3
Timelineinfo
04/02/2026 Advisory disclosed
04/02/2026 +0 days CVE reserved
04/02/2026 +0 days VulDB entry created
04/02/2026 +0 days VulDB entry last update
Sourcesinfo
Advisory: openssh.org
Status: Confirmed
CVE: CVE-2026-35387 (🔒)
GCVE (CVE): GCVE-0-2026-35387
GCVE (VulDB): GCVE-100-354955
Entryinfo
Created: 04/02/2026 19:36
Changes: 04/02/2026 19:36 (62)
Complete: 🔍
Cache ID: 99:8F0:101
Discussion
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