3.3

CVE-2026-41434: op-tee optee_os Stack-based Buffer Overflow

CVSS: 3.3v3.1LowAnalyzed
AliasesUBUNTU-CVE-2026-41434DEBIAN-CVE-2026-41434
Published 06-07-2026Last modified 07-07-2026
Open JSON

Vulnerability summary

CVE-2026-41434 is a low (CVSS 3.3) Stack-based Buffer Overflow vulnerability in op-tee optee_os. EPSS estimates a 0.15% chance of exploitation in the next 30 days, higher than 3.8% of scored vulnerabilities.

Overall risk
13/100
0100
Low · default modelHow is this calculated?
CVSS score
3.3/10
010
Low · v3.1 (CVE.org)
EPSS score
0.15%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 06-07-2026
    PublishedVulnerability first disclosed.
  2. 07-07-2026
    Last modifiedVulnerability information updated.

Description

OP-TEE is a Trusted Execution Environment (TEE) designed as companion to a non-secure Linux kernel running on Arm; Cortex-A cores using the TrustZone technology. Starting in version 3.10.0 and prior to version 4.11.0, an unbounded recursion can crash the PKCS#11 TA. Version 4.11.0 contains a patch. No known workarounds are available.

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.15%

Chance of exploitation in the next 30 days

Percentile

4%

Versus all other CVEs

30-day change

0.00 pp

From 0.15% on 20-09-2026

20-09-202620-10-2026
EPSS score
0.15%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Debian1 product
  • optee-osAll versions (No fix recorded)
Op-tee1 product
Trustedfirmware1 product
Ubuntu1 product
  • optee-osAll versions (No fix recorded)

4 vendors · 4 products

References

4 links