No exploitation reportedFix available

CVE-2010-4478

No exploitation reported by the sources we read.

Published2010-12-06
WeaknessCWE-287

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

OpenSSH 5.6 and earlier, when J-PAKE is enabled, does not properly validate the public parameters in the J-PAKE protocol, which allows remote attackers to bypass the need for knowledge of the shared secret, and successfully authenticate, by sending crafted values in each round of the protocol, a related issue to CVE-2010-4252.

Timeline

dates in UTC

2010-12-0622:30CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 21:37 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2010-4478?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2010-4478?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD

OpenSSH

Branch	Affected	Fixed in	Source
5.6	≤ 5.6	no fix published	NVD
1.2	= 1.2	no fix published	NVD
1.2	= 1.2.1	no fix published	NVD
1.2	= 1.2.2	no fix published	NVD
1.2	= 1.2.3	no fix published	NVD
1.2	= 1.2.27	no fix published	NVD
1.3	= 1.3	no fix published	NVD
1.5	= 1.5	no fix published	NVD
1.5	= 1.5.7	no fix published	NVD
1.5	= 1.5.8	no fix published	NVD
2.1	= 2.1	no fix published	NVD
2.1	= 2.1.1	no fix published	NVD

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

Advisories and patches

www.openbsd.orgPatch
bugzilla.redhat.comPatch

Detection

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: none listed

Sources

CISA-ADPSSVC decisionnone2026-05-28
OpenCVESSVC decisionnone—
CISA-ADPCVSS 3.19.82026-05-28
NVDCVSS 2.07.5read 2026-10-23
CISA-ADPweakness (CWE)CWE-2872026-05-28
NVDweakness (CWE)CWE-287read 2026-10-23
FIRST EPSSEPSS score4.2 %2026-10-23

Technical details

CVSS v3 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published: 2010-12-06
Last Modified: 2026-06-16
NVD status: Modified

Frequently asked questions

What is CVE-2010-4478?

Is CVE-2010-4478 actively exploited?

Active exploitation of CVE-2010-4478 has not been confirmed. Its EPSS score was 4.2% on 2026-10-23, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2010-4478?

CVE-2010-4478 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

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