CVE-2026-73282: OpenSSH · In Ssh
Affects opensshSource GCVE Database
Not known to be exploited · CVSS 4.8 Medium · fixed in 1:6.6p1-2ubuntu2.13+esm4 : update openssh when convenient.
Data as of 10 Nov 2026, 23:24 UTC
- EPSS
- 0.1% chance of exploitation in 30 days – higher than 5% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 1:6.6p1-2ubuntu2.13+esm4, 1:7.2p2-4ubuntu2.10+esm10, 1:7.6p1-4ubuntu0.7+esm6 +5
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:NExploitation evidence
Disclosed: evidence found.
CVE published 11 Aug 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 10 Nov 2026.
What to do
Upgrade to a fixed release listed under Affected software.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
Ubuntu 26.10openssh-ssh1pkg:deb/ubuntu/openssh-ssh1?arch=source&distro=stonkingOther threats | Affected
| Fixed in– |
Ubuntu 26.04 LTSopensshpkg:deb/ubuntu/openssh?arch=source&distro=resoluteOther threats | Affected
| Fixed in
|
Ubuntu 26.04 LTSopenssh-ssh1pkg:deb/ubuntu/openssh-ssh1?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Ubuntu 24.04 LTSopensshpkg:deb/ubuntu/openssh?arch=source&distro=nobleOther threats | Affected
| Fixed in
|
Ubuntu 24.04 LTSopenssh-ssh1pkg:deb/ubuntu/openssh-ssh1?arch=source&distro=nobleOther threats | Affected
| Fixed in– |
Ubuntu Pro FIPS-updates 24.04 LTSopensshpkg:deb/ubuntu/openssh?arch=source&distro=fips-updates/nobleOther threats | Affected
| Fixed in
|
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
A patch is available for this vulnerability. Users and administrators should update OpenSSH to version 10.5 or later to remediate this issue. Since the vendor advisory confirms patch availability, applying the official fix is the recommended mitigation.
Description
A use-after-free vulnerability exists in OpenSSH versions before 10.5, triggered by concurrent remote-forwarding operations. This flaw can cause memory corruption due to improper handling of realloc data. The vulnerability affects multiple OpenSSH versions including Microsoft Azure Linux 3.0. The severity is assessed as medium with a CVSS score of 4.8. A patch is available to address this issue.
References
- nvd.nist.gov/vuln/detail/CVE-2026-73282 (opens in a new tab)
- openssh.org/releasenotes.html (opens in a new tab)
- msrc.microsoft.com/csaf/vex/2026/msrc_cve-2026-73282.json (opens in a new tab)
- support.microsoft.com/lifecycle (opens in a new tab)
- first.org/cvss (opens in a new tab)
- ubuntu.com/security/CVE-2026-73282 (opens in a new tab)
- cve.org/CVERecord?id=CVE-2026-73282 (opens in a new tab)
- openwall.com/lists/oss-security/2026/08/12/1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8721-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8804-1 (opens in a new tab)