CVE-2025-71300: Linux kernel · Revert "arm64: zynqmp: Add an OP-TEE node to the device tree
Affects Linux kernelSource GCVE Database
Not known to be exploited · CVSS 7.8 High.
Data as of 26 Oct 2026, 17:16 UTC
- EPSS
- 0.1% chance of exploitation in 30 days – higher than 3% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 8 May 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: 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 26 Oct 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
Ubuntu 26.04 LTSlinux-azure-fdepkg:deb/ubuntu/linux-azure-fde@7.0.0-1008.8?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Ubuntu 25.10linuxpkg:deb/ubuntu/linux?arch=source&distro=questingOther threats | Affected
| Fixed in– |
Ubuntu 25.10linux-awspkg:deb/ubuntu/linux-aws?arch=source&distro=questingOther threats | Affected
| Fixed in– |
Ubuntu 25.10linux-azurepkg:deb/ubuntu/linux-azure?arch=source&distro=questingOther threats | Affected
| Fixed in– |
Ubuntu 25.10linux-azure-fdepkg:deb/ubuntu/linux-azure-fde?arch=source&distro=questingOther threats | Affected
| Fixed in– |
Ubuntu 25.10linux-gcppkg:deb/ubuntu/linux-gcp?arch=source&distro=questingOther 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 fix is available through the reversion of the problematic commit in the Linux kernel source. Users should update to kernel versions that include this revert to resolve the issue. Since this is a kernel-level fix, applying the updated kernel from the vendor or distribution is the recommended remediation.
Description
A vulnerability in the Linux kernel related to the arm64 architecture's zynqmp device tree has been resolved by reverting a commit that added an OP-TEE node. The issue caused OP-TEE's reserved-memory node injection logic to break, leading to memory access violations during runtime. This affects specific Linux kernel versions listed. The CVSS score is 7.8, indicating a high impact on confidentiality, integrity, and availability.
References
- ubuntu.com/security/CVE-2025-71300 (opens in a new tab)
- cve.org/CVERecord?id=CVE-2025-71300 (opens in a new tab)
- git.kernel.org/linus/c197179990124f991fca220d97fac56779a02c6d (opens in a new tab)
- git.kernel.org/stable/c/2a833c730d4e8d1cc10953270ce0f3a156145d81 (opens in a new tab)
- git.kernel.org/stable/c/3983ef126e439900bbf419724a9759863c146660 (opens in a new tab)
- git.kernel.org/stable/c/c197179990124f991fca220d97fac56779a02c6d (opens in a new tab)
- git.kernel.org/stable/c/eece81eeda10eb42c687399fb5aa69977ae15664 (opens in a new tab)