CVE-2026-80709s390/zcrypt: Fix wrong domain value verification with EP11 CPRBs
- 7.8HighCVSS base score
- 0.18%Exploitation in 30 daysEPSS · top 93% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
In the Linux kernel, the following vulnerability has been resolved: s390/zcrypt: Fix wrong domain value verification with EP11 CPRBs There is a wrong upper limit check for the domain value when an EP11 CPRB is processed for sending to a crypto card. This check is only active on custom device nodes but may lead to access heap memory behind perms->adm when an administrative CPRB is sent. Add correct limit (AP_DOMAINS = 256) checking to fix this.
Timeline
ID reserved
By Linux
- 2 days later
· 2 days later
Published
- 49 days later
· 49 days later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| LinuxCNA (assigner) | 3.1 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVDNVD · Received | 3.1 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 0.18% · top 93% of all CVEs (14 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: total
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.8.
Affected products
- affected cfd68b33094e1a92249850ff3c3c92ae9112a541 – < 4589f742718d0256ea6dd1f5a78be6e689bdb8aa
- affected cfd68b33094e1a92249850ff3c3c92ae9112a541 – < b505dcc8307d64468b463dfad45a03bf865c637e
- affected cfd68b33094e1a92249850ff3c3c92ae9112a541 – < 13e53d6ae1c3b2ff1be75b9ef09be26f4ec3ce15
- affected cfd68b33094e1a92249850ff3c3c92ae9112a541 – < 672b12940e3f1336dfed5287412a71500adf2a76
- affected cfd68b33094e1a92249850ff3c3c92ae9112a541 – < 1223477ca88e2396eca440919d0ca8754df79bd5
- affected cfd68b33094e1a92249850ff3c3c92ae9112a541 – < 983279d7f86ade73db86f886e09172dd567031b5
- affected 5.18
- unaffected < 5.18
- unaffected 6.1.183 – ≤ 6.1.*
- unaffected 6.6.151 – ≤ 6.6.*
- unaffected 6.12.103 – ≤ 6.12.*
- unaffected 6.18.44 – ≤ 6.18.*
- unaffected 7.1.8 – ≤ 7.1.*
- unaffected 7.2 – ≤ *
References
References6
- https://git.kernel.org/stable/c/4589f742718d0256ea6dd1f5a78be6e689bdb8aa (opens in a new tab)
- https://git.kernel.org/stable/c/b505dcc8307d64468b463dfad45a03bf865c637e (opens in a new tab)
- https://git.kernel.org/stable/c/13e53d6ae1c3b2ff1be75b9ef09be26f4ec3ce15 (opens in a new tab)
- https://git.kernel.org/stable/c/672b12940e3f1336dfed5287412a71500adf2a76 (opens in a new tab)
- https://git.kernel.org/stable/c/1223477ca88e2396eca440919d0ca8754df79bd5 (opens in a new tab)
- https://git.kernel.org/stable/c/983279d7f86ade73db86f886e09172dd567031b5 (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2026-67444 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2026-80709)Record last updated .