01 Record
CVE-2026-11812
UpdateHub: race condition on shared context causes out-of-bounds write and DoS
LowPUBLISHEDCNA: zephyr
CNA base score2.5 CVSS v3.xCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L
02 Description
UpdateHub: race condition on shared context causes out-of-bounds write and DoS
03 Exploitation and scoring
- Exploitation
- Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
- SSVC decision
- ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
- AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
- Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
- EPSS probability
- 0.10% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 0.9% of scored records. A rank, not a probability.
- NVD base score
- 2.5 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L
- NVD analysis status
- Awaiting Analysis. NVD last modified this record on 2026-10-23.
- Red Hat severity
- No Red Hat rating. Red Hat rates the CVEs that affect its products.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2026-08-10 23:09Z2 MO AGO
- Last updated
- 2026-08-31 23:13Z1 MO AGO
- Reserved
- 2026-06-09
- Assigning CNA
- zephyr
- Record state
- PUBLISHED
- Severity
- Low (CVSS 2.5)
- CNA CVSS vector
- CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L
- Weaknesses
- CWE-362Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')Class
- Data version
- 5.2
- Document digest
- b529e413067323cb8d6c883a429dbb52e9f41b9495a33eec8cbccbcaf4f5d76d
05 Affected products
VendorProductVersionsPlatforms
06 References
- github.comFix commithttps://github.com/zephyrproject-rtos/zephyr/commit/551d3f92b36e9604f039101c4e4f623682d02159
- github.comGHSA-vprh-rff6-46xphttps://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-vprh-rff6-46xp