CVE-2026-48850

Name
CVE-2026-48850
Description
PuTTY 0.72 before 0.84 has a double free in RSA KEX.
NVD Severity
unknown
Other trackers
CVE, NVD, CERT, CVE Details, CIRCL, Arch Linux, Debian, Red Hat, Ubuntu, Gentoo, SUSE (Bugzilla), SUSE (CVE), Mageia
Mailing lists
oss-security, full-disclosure, bugtraq
Exploits
Exploit DB, Metasploit
Forges
GitHub (code, issues), Aports (code, issues)

References

Type URI
cve@mitre.org https://lists.tartarus.org/pipermail/putty-announce/2026/000042.html
cve@mitre.org https://www.chiark.greenend.org.uk/~sgtatham/putty/wishlist/rsakex-double-free.html

Match rules

CPE URI Source package Min version Max version
cpe:2.3:a:putty:putty:*:*:*:*:*:*:*:* putty >= 0.72 < 0.84

Vulnerable and fixed packages

Source package Branch Version Maintainer Status
putty edge-main 0.81-r0 Jeff Bilyk <jbilyk@alpinelinux.org> possibly vulnerable
putty edge-main 0.80-r0 Jeff Bilyk <jbilyk@alpinelinux.org> possibly vulnerable
putty edge-main 0.76-r0 Jeff Bilyk <jbilyk@alpinelinux.org> possibly vulnerable
putty edge-main 0.74-r0 Jeff Bilyk <jbilyk@alpinelinux.org> possibly vulnerable
putty edge-main 0.73-r0 None possibly vulnerable
putty edge-community 0.83-r2 None possibly vulnerable
putty edge-community 0.83-r1 Celeste <cielesti@protonmail.com> possibly vulnerable
putty edge-community 0.83-r0 Celeste <cielesti@protonmail.com> possibly vulnerable
putty edge-community 0.82-r0 Celeste <cielesti@protonmail.com> possibly vulnerable
putty edge-community 0.81-r0 Jeff Bilyk <jbilyk@alpinelinux.org> possibly vulnerable
putty edge-community 0.80-r0 None possibly vulnerable
putty edge-community 0.76-r0 None possibly vulnerable
putty edge-community 0.74-r0 None possibly vulnerable
putty edge-community 0.73-r0 None possibly vulnerable
putty 3.23-community 0.83-r1 Celeste <cielesti@protonmail.com> possibly vulnerable
putty 3.19-main 0.81-r0 Jeff Bilyk <jbilyk@alpinelinux.org> possibly vulnerable
putty 3.19-main 0.80-r0 Jeff Bilyk <jbilyk@alpinelinux.org> possibly vulnerable
putty 3.19-main 0.76-r0 None possibly vulnerable
putty 3.19-main 0.74-r0 None possibly vulnerable
putty 3.19-main 0.73-r0 None possibly vulnerable