No exploitation reportedFix available

CVE-2018-1000805

Q: Is CVE-2018-1000805 actively exploited?

Active exploitation of CVE-2018-1000805 has not been confirmed. Its EPSS score was 4.4% on 2026-10-23, the estimated probability of exploitation in the next 30 days.

Q: What is the CVSS score for CVE-2018-1000805?

CVE-2018-1000805 has a CVSS v3 base score of 8.8 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

No exploitation reported by the sources we read.

Published2018-10-08
WeaknessCWE-863

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

Paramiko version 2.4.1, 2.3.2, 2.2.3, 2.1.5, 2.0.8, 1.18.5, 1.17.6 contains a Incorrect Access Control vulnerability in SSH server that can result in RCE. This attack appear to be exploitable via network connectivity.

Timeline

dates in UTC

2018-10-0815:29CVE 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-2018-1000805?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2018-1000805?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD · OSV

Paramiko

Branch	Affected	Fixed in	Source
1.17	= 1.17.6	no fix published	NVD
1.18	= 1.18.5	no fix published	NVD
2.0	= 2.0.8	no fix published	NVD
2.1	= 2.1.5	no fix published	NVD
2.2	= 2.2.3	no fix published	NVD
2.3	= 2.3.2	no fix published	NVD
2.4	= 2.4.1	no fix published	NVD

paramiko

Branch	Affected	Fixed in	Source
2.4	≥ 2.4.0, < 2.4.2	2.4.2	OSV
2.3	≥ 2.3.0, < 2.3.3	2.3.3	OSV
2.2	≥ 2.2.0, < 2.2.4	2.2.4	OSV
2.1	≥ 2.1.0, < 2.1.6	2.1.6	OSV
2.0	≥ 1.5.1, < 2.0.9	2.0.9	OSV

Canonical ubuntu linux

Branch	Affected	Fixed in	Source
12.4	= 12.04	no fix published	NVD
14.4	= 14.04	no fix published	NVD
16.4	= 16.04	no fix published	NVD
18.4	= 18.04	no fix published	NVD
18.10	= 18.10	no fix published	NVD

9 more products in the sources.

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

Fix

Advisories and patches

github.comPatch

Detection

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

Sources

NVDCVSS 3.18.8read 2026-10-23
NVDCVSS 2.06.5read 2026-10-23
NVDweakness (CWE)CWE-863read 2026-10-23
FIRST EPSSEPSS score4.4 %2026-10-23
OSVaffected packages—

Technical details

CVSS v3 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Published: 2018-10-08
Last Modified: 2026-06-17
NVD status: Modified

Frequently asked questions

What is CVE-2018-1000805?

Is CVE-2018-1000805 actively exploited?

Active exploitation of CVE-2018-1000805 has not been confirmed. Its EPSS score was 4.4% on 2026-10-23, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2018-1000805?

CVE-2018-1000805 has a CVSS v3 base score of 8.8 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

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