CVE-2022-46152

HIGHNVD 8.88.8—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 8.8 under NVD CVSS v3. EPSS exploit probability: 0.5%, top 62% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
Trending — 3 sources updated this weekElevated
8.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 8.8Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

OP-TEE Trusted OS is the secure side implementation of OP-TEE project, a Trusted Execution Environment. Versions prior to 3.19.0, contain an Improper Validation of Array Index vulnerability. The function cleanup_shm_refs() is called by both entry_invoke_command() and entry_open_session(). The commands OPTEE_MSG_CMD_OPEN_SESSION and OPTEE_MSG_CMD_INVOKE_COMMAND can be executed from the normal world via an OP-TEE SMC. This function is not validating the num_params argument, which is only limited to OPTEE_MSG_MAX_NUM_PARAMS (127) in the function get_cmd_buffer(). Therefore, an attacker in the normal world can craft an SMC call that will cause out-of-bounds reading in cleanup_shm_refs and potentially freeing of fake-objects in the function mobj_put(). A normal-world attacker with permission to execute SMC instructions may exploit this flaw. Maintainers believe this problem permits local privilege escalation from the normal world to the secure world. Version 3.19.0 contains a fix for this issue. There are no known workarounds.

CVSS v3
8.8
EG Score
8.8(medium)
EG Risk
56(Track*)
EG Risk 56/100SSVC: Track*

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity88% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Watch closely — could escalate to Attend.
EPSS
37.7%
KEV
Not listed

Published

November 29, 2022

Last Modified

June 5, 2026

Advisory Details (3)

Auto-updated Jun 5, 2026
Patch available. Sources: github_commit, github.
github Patch Available

Improper Validation of Array Index in the cleanup_shm_refs function · Advisory · OP-TEE/optee_os · GitHub

https://github.com/OP-TEE/optee_os/security/advisories/GHSA-65w8-6mrg-52g7
github_commit

commit 728616b28df6 (OP-TEE/optee_os)

Fix landed in OP-TEE/optee_os commit 728616b28df6 — awaiting tagged release

https://github.com/OP-TEE/optee_os/commit/728616b28df659cf0bdde6e58a471f6ef25d023c
generic

optee_os/core/tee/entry_std.c at c2d449482de098f1c894b94f338440e5a327813d · OP-TEE/optee_os · GitHub

https://github.com/OP-TEE/optee_os/blob/c2d449482de098f1c894b94f338440e5a327813d/core/tee/entry_std.c#L257

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 12× in last 7d / 44× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-07-23 02:15 UTCEG score recompute
  2. 2026-07-22 23:03 UTCEG score recompute▲ 0.60
  3. 2026-07-22 14:06 UTCEPSS rescore
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  40. 2026-06-10 22:17 UTCEPSS rescore
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  43. 2026-06-08 23:30 UTCNVD updateCVSS v3 → 8.8
  44. 2026-06-08 14:15 UTCEPSS rescore
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  74. 2026-05-25 11:26 UTCEG score recompute

Frequently asked(5)

What is CVE-2022-46152?
CVE-2022-46152 is a high vulnerability published on November 29, 2022. OP-TEE Trusted OS is the secure side implementation of OP-TEE project, a Trusted Execution Environment. Versions prior to 3.19.0, contain an Improper Validation of Array Index vulnerability. The function cleanupshmrefs() is called by both entryinvokecommand() and entryopensession(). The commands…
When was CVE-2022-46152 disclosed?
CVE-2022-46152 was first published in the National Vulnerability Database on November 29, 2022, with the most recent update on June 5, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2022-46152 actively exploited?
CVE-2022-46152 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 37.7% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2022-46152?
CVE-2022-46152 has a CVSS v3 base score of 8.8 (NVD).
How do I remediate CVE-2022-46152?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2022-46152, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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