CVE-2026-55995
Publication date 29 July 2026
Last updated 24 September 2026
Ubuntu priority
Description
A Double Free vulnerability in open-iscsi allows an unauthenticated MITM attacker to cause DoS. This issue affects open-iscsi: from ? through 56718d4e9d1a4f51c30697b5c0534144bb41c9bb.
Status
| Package | Ubuntu Release | Status |
|---|---|---|
| open-iscsi | 26.04 LTS resolute |
Needs evaluation
|
| 24.04 LTS noble |
Needs evaluation
|
|
| 22.04 LTS jammy |
Needs evaluation
|
|
| 20.04 LTS focal |
Needs evaluation
|
|
| 18.04 LTS bionic |
Needs evaluation
|
|
| 16.04 LTS xenial |
Needs evaluation
|
|
| 14.04 LTS trusty |
Needs evaluation
|
|
| open-isns | 26.04 LTS resolute |
Fixed 0.101-2.1ubuntu0.1
|
| 24.04 LTS noble |
Fixed 0.101-0.3ubuntu0.1
|
|
| 22.04 LTS jammy |
Fixed 0.101-0ubuntu2.1
|
|
| 20.04 LTS focal |
Fixed 0.97-3ubuntu0.1~esm1
|
|
| 18.04 LTS bionic |
Fixed 0.97-2ubuntu0.1~esm1
|
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CVSS version: CVSS v4.0
Base score
8.7 · High
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
References
Related Ubuntu Security Notices (USN)
- USN-8807-1
- Open-iSNS vulnerability
- 23 September 2026