CVE-2018-15919

mediumpriority · track · 22EPSS 0.036 · 89 %ileDEEURUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

3.56% (89th) EPSS

CVSS 5 · medium

Is it mine?

22 products

Check your exposure

Who says so?

5 sources

cnnvd · enisa_euvd · fstec_bdu · nvd

EPSS · scored 2026-10-27

Remotely observable behaviour in auth-gss2.c in OpenSSH through 7.8 could be used by remote attackers to detect existence of users on a target system when GSS2 is in use. NOTE: the discoverer states 'We understand that the OpenSSH developers do not want to treat such a username enumeration (or "oracle") as a vulnerability.'

cvss

Technical severity, 0–10. One row per scoring source.

5.3

010

base score 0–10 · higher = more severe · hover a vector to decode

v2.05mediumAV:N/AC:L/Au:N/C:P/I:N/A:Nprimary · NVD / NIST USexploitability 10 · impact 2.9

v3.05.3mediumCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:Nprimary · NVD / NIST USexploitability 3.9 · impact 1.4

v3.15.3mediumAV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:Nsecondary · FSTEC (BDU) RU

v3.15.3mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:Nsecondary · ENISA EU

v3.15.3mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:Nsecondaryexploitability 3.9 · impact 1.4

v3.14.9mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:Usecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: poc · Automatable: yes · Technical Impact: partialcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-200USprimaryCWE-200US

affected products (22)

Products and version ranges known to be affected.

n/a n/a≤ n/aenisa_euvdEU
Canonical Ltd. Ubuntu≤ 18.04fstec_bduRU
Canonical Ltd. Ubuntu≤ 20.04 LTSfstec_bduRU
Canonical Ltd. Ubuntu≤ 19.10fstec_bduRU
Canonical Ltd. Ubuntu≤ 19.04fstec_bduRU
Canonical Ltd. Ubuntu≤ 18.10fstec_bduRU
Canonical Ltd. Ubuntu≤ 16.04fstec_bduRU
Canonical Ltd. Ubuntu≤ 14.04fstec_bduRU
McAfee Inc. Threat Intelligence Exchange Server≤ 2.3.0fstec_bduRU
McAfee Inc. Threat Intelligence Exchange Server≤ 2.0.0fstec_bduRU
McAfee Inc. Threat Intelligence Exchange Server≤ 2.0.1fstec_bduRU
McAfee Inc. Threat Intelligence Exchange Server≤ 2.1.0fstec_bduRU
McAfee Inc. Threat Intelligence Exchange Server≤ 2.1.1fstec_bduRU
McAfee Inc. Threat Intelligence Exchange Server≤ 2.2.0fstec_bduRU
The OpenBSD Project OpenSSH≤ 7.8fstec_bduRU
ООО «Ред Софт» РЕД ОС≤ 7.2 Муромfstec_bduRU
netapp cloud backupall versionsnvdUScpe:2.3:a:netapp:cloud_backup:*:*:*:*:*:*:*:*
netapp cn1610 firmwareall versionsnvdUScpe:2.3:o:netapp:cn1610_firmware:*:*:*:*:*:*:*:*
netapp data ontap edgeall versionsnvdUScpe:2.3:a:netapp:data_ontap_edge:*:*:*:*:*:*:*:*
netapp ontap select deployall versionsnvdUScpe:2.3:a:netapp:ontap_select_deploy:*:*:*:*:*:*:*:*

showing 20 of 22

advisories (1)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2024-1082Juniper JUNOS: Mehrere SchwachstellenDeutsch2024-05-09csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in Juniper JUNOS im Zusammenhang mit OpenSSH ausnutzen, um Sicherheitsmaßnahmen zu umgehen, beliebigen Code auszuführen oder Dateien zu manipulieren.

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu nvd cert_bund NVD CVE.org MITRE

published 2018-08-28modified 2026-06-17

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+19392 more

references (14)

External citations — patches, advisories, analysis.

scry

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