CVE-2019-17069
PuTTY before 0.73 might allow remote SSH-1 servers to cause a denial of service by accessing freed memory locations via an SSH1_MSG_DISCONNECT message.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (2.25%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
PuTTY before 0.73 might allow remote SSH-1 servers to cause a denial of service by accessing freed memory locations via an SSH1_MSG_DISCONNECT message.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 2.25% probability · 83th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-416
- Affected
- putty/putty · opensuse/leap · netapp/oncommand unified manager core package
- Source
- cve@mitre.org
EPSS 2.2% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00020.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00021.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00030.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2024/04/msg00016.html
- https://lists.tartarus.org/pipermail/putty-announce/2019/000029.htmlMailing List, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20191127-0003/Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00020.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00021.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00030.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2024/04/msg00016.html
- https://lists.tartarus.org/pipermail/putty-announce/2019/000029.htmlMailing List, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20191127-0003/Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.