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Vulnerability details: VCID-ah15-cney-aaaa
Vulnerability ID VCID-ah15-cney-aaaa
Aliases CVE-2019-9895
Summary In PuTTY versions before 0.71 on Unix, a remotely triggerable buffer overflow exists in any kind of server-to-client forwarding.
Status Published
Exploitability 0.5
Weighted Severity 8.8
Risk 4.4
Affected and Fixed Packages Package Details
Weaknesses (1)
CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer
System Score Found at
generic_textual Medium http://people.canonical.com/~ubuntu-security/cve/2019/CVE-2019-9895.html
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generic_textual Medium https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-9894
generic_textual Medium https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-9895
generic_textual Medium https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-9897
generic_textual Medium https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-9898
cvssv2 7.5 https://nvd.nist.gov/vuln/detail/CVE-2019-9895
cvssv3 9.8 https://nvd.nist.gov/vuln/detail/CVE-2019-9895
cvssv3.1 5.9 https://www.chiark.greenend.org.uk/~sgtatham/putty/changes.html
generic_textual MODERATE https://www.chiark.greenend.org.uk/~sgtatham/putty/changes.html
Reference id Reference type URL
http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00004.html
http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00020.html
http://people.canonical.com/~ubuntu-security/cve/2019/CVE-2019-9895.html
https://api.first.org/data/v1/epss?cve=CVE-2019-9895
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-9894
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-9895
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-9897
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-9898
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/36LWQ3NPFIV7DC7TC4KFPRYRH2OR7SZ2/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LDO3F267P347E6U2IILFCYW7JPTLCCES/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/36LWQ3NPFIV7DC7TC4KFPRYRH2OR7SZ2/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/LDO3F267P347E6U2IILFCYW7JPTLCCES/
https://seclists.org/bugtraq/2019/Apr/6
https://security.netapp.com/advisory/ntap-20190404-0001/
https://www.chiark.greenend.org.uk/~sgtatham/putty/changes.html
https://www.debian.org/security/2019/dsa-4423
cpe:2.3:o:fedoraproject:fedora:28:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:fedoraproject:fedora:28:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:29:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:fedoraproject:fedora:29:*:*:*:*:*:*:*
CVE-2019-9895 https://nvd.nist.gov/vuln/detail/CVE-2019-9895
No exploits are available.
Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P Found at https://nvd.nist.gov/vuln/detail/CVE-2019-9895
Exploitability (E) Access Vector (AV) Access Complexity (AC) Authentication (Au) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

high

functional

unproven

proof_of_concept

not_defined

local

adjacent_network

network

high

medium

low

multiple

single

none

none

partial

complete

none

partial

complete

none

partial

complete
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2019-9895
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N Found at https://www.chiark.greenend.org.uk/~sgtatham/putty/changes.html
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Exploit Prediction Scoring System (EPSS)
Percentile 0.75619
EPSS Score 0.01057
Published At March 28, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
There are no relevant records.