CVE-2017-3158

mediumpriority · track · 32EPSS 0.012 · 69 %ileEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

1.22% (69th) EPSS

CVSS 6.8 · medium

Is it mine?

4 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · nvd · osv

EPSS · scored 2026-10-28

A race condition in Guacamole's terminal emulator in versions 0.9.5 through 0.9.10-incubating could allow writes of blocks of printed data to overlap. Such overlapping writes could cause packet data to be misread as the packet length, resulting in the remaining data being written beyond the end of a statically-allocated buffer.

cvss

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

8.1

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.8–8.1

v2.06.8mediumAV:N/AC:M/Au:N/C:P/I:P/A:Pprimary · NVD / NIST USexploitability 8.6 · impact 6.4

v3.08.1highCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 2.2 · impact 5.9

v3.08.1highCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · OSV

v3.07.4highCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-362USprimaryCWE-362US

affected products (4)

Products and version ranges known to be affected.

Apache Software Foundation Apache Guacamole≤ Apache Guacamole 0.9.5 to 0.9.10-incubatingenisa_euvdEU
apache guacamole≤ 0.9.9nvdUScpe:2.3:a:apache:guacamole:*:*:*:*:*:*:*:*
apache guacamole= 0.9.10-incubatingnvdUScpe:2.3:a:apache:guacamole:*:*:*:*:*:*:*:*
Maven org.apache.guacamole:guacamole-common0.9.5 → 0.9.11-incubatingosvUSpkg:maven/org.apache.guacamole/guacamole-common

advisories (1)

Vendor and ecosystem advisories describing this.

GHSA-3vv3-585q-wv6xApache Guacamole Race Condition vulnerability2022-05-14ghsa · osvUS
A race condition in Guacamole's terminal emulator in versions 0.9.5 through 0.9.10-incubating could allow writes of blocks of printed data to overlap. Such overlapping writes could cause packet data to be misread as the packet length, resulting in the remaining data being written beyond the end of a statically-allocated buffer.

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd nvd osv NVD CVE.org MITRE

published 2018-01-18modified 2026-06-17

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references (4)

External citations — patches, advisories, analysis.

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